CISCO cBR Series Converged Broadband Router User Guide
- June 14, 2024
- Cisco
Table of Contents
cBR Series Converged Broadband Router
Product Information: Cisco cBR Series Converged Broadband
Router
Specifications:
- Networking Software: Cisco IOS-XE
- Supports advanced networking and routing options
Functional Overview:
Upstream Data Path:
-
A subscriber generates a request for service.
-
The modem transmits the request as a series of packets to the
Cisco CMTS on the upstream. -
The cable line card receives the packets on its upstream
interface and forwards them to its onboard processor. -
The line card processor verifies the header check sequence
(HCS), frame check sequence (FCS), and system identification number
(SID). -
The line card processor processes all fields in the DOCSIS MAC
header and removes the header.-
The line card examines and processes extended headers (Request,
Acknowledgment, Privacy, PHSs, and Unsolicited Grand
Synchronization header elements). -
If Baseline Privacy Interface (BPI) is used, the processor also
decrypts the Privacy EH frames using the appropriate key. -
Bandwidth requests, acknowledgment (ACK) requests, and
unsolicited grant syncs are reformatted and passed to the request
ring of the Cisco cable line card.
-
Downstream Data Path:
-
The DOCSIS MAC header is removed, and another header is added,
including the SID, upstream port information, and status bits
indicating errors. -
The packet is sent across the backplane to the forwarding
processor (FP) or the routing processor (RP) on the route
processor. -
The route processor performs packet operations such as access
list processing, classification, switching, and QoS. -
The packet is moved to the correct output queue and transmitted
over the backplane to the network uplink card (Ten Gigabit
Ethernet) or another cable interface line card. -
The output card forwards the packet to the next interface
point.-
The rewrite consists of a downstream header and 802.3 MAC
header. -
The downstream header contains destination primary SID,
physical DS port number, PHS rule index, control bits, and other
fields. -
The packet is policed, shaped, and prepared for queueing based
on priority and flow bits. -
The destination card address (port) is pre-appended to the
header of the transmitted packet.
-
-
The packet is transmitted over the backplane to the appropriate
cable interface line card. -
The cable interface line card receives the packet and forwards
it to all the ASICs on the line card.-
Each ASIC decodes the header to determine if the packet is
destined for one of the downstream ports on that card. -
If so, the downstream header is removed and the 802.3 MAC
header is saved. -
The MAC header is processed to determine how to build the
DOCSIS MAC header and what operations to perform on the
packet. -
This might include pre-appending the DOCSIS MAC header,
computing the HCS and FCS, performing Packet Header Suppression,
and BPI encryption.
-
FAQ:
-
What software does the Cisco cBR Series Converged
Broadband Router run on?
The Cisco cBR runs on the Cisco IOS-XE networking software. -
What advanced networking and routing options does the
Cisco cBR support?
The Cisco cBR supports the most advanced networking and routing
options.
What is a Cisco cBR Series Converged Broadband Router
· Introduction, on page 1 · Functional Overview, on page 2 · Cisco cBR-8
Converged Broadband Router, on page 4 · Supervisor, on page 15 · Interface
Cards, on page 25 · Power System, on page 33 · Fan Module, on page 39 · Air
Filter, on page 41 · Cisco IOS-XE Software, on page 41 · NEBS Level 3
Compliance, on page 42 · How and What to Order, on page 42
Introduction
The Cisco cBR Series Converged Broadband Router (Cisco cBR) is an Edge
Services platform designed for cable MSOs. It supports the RF and Data-over-
Cable Service Interface Specifications (DOCSIS) interfaces of a Cable Modem
Termination System (CMTS) and digital optical interfaces such as Passive
Optical Networks (PON) and point-to-point Ten Gigabit Ethernet. The Cisco cBR
supports video including both traditional MPEG video and Video over IP over
DOCSIS (VDOC). The advantage of Cisco cBR is the ability to support MPEG video
and VDOC in the same platform allowing transition from MPEG to VDOC. The Cisco
cBR is a single device that manages the entire RF spectrum of the cable plant.
The Cisco cBR provides high-speed data, broadband, and IP telephony services
to residential and commercial subscribers using cable modems or digital set-
top boxes (STBs). It supports data and digitized voice connectivity over a
bidirectional cable television and IP backbone network. And uses advanced
quality of service (QoS) techniques to ensure that real-time traffic such as
voice can be reliably delivered, while still transmitting other traffic on a
best-effort basis. The Cisco cBR concentrates traffic from two-way DOCSIS-
based cable modems and STBs that is transmitted over the coaxial cable
television (CATV) network, and presents that traffic to local and remote
Internet Protocol (IP) hosts over its high-speed network uplink interfaces.
What is a Cisco cBR Series Converged Broadband Router 1
Functional Overview
What is a Cisco cBR Series Converged Broadband Router
The Cisco cBR runs on the Cisco IOS-XE networking software and supports the
most advanced networking and routing options.
Functional Overview
The Cisco cBR provides the following network solutions: · High speed data
access over DOCSIS · Video over DOCSIS · Voice services over DOCSIS · Business
services over DOCSIS · MPEG transport-based video distribution · Videoscape
management system integration · Data plane optimization to carry ABR traffic
including monitoring of quality of service · Assistance with the support of
legacy devices in a Videoscape environment · Video cache integration
The path from the Cisco CMTS to the cable modem or STB is the downstream,
which carries the majority of traffic over the cable interface. The path from
the cable modem or STB to the Cisco CMTS is the upstream, and it carries
approximately 10 percent of the traffic that is sent over the downstream. A
large number of users can be assigned to the same downstream, and for
efficient use of bandwidth, those users can be split among several different
upstream. The following sections contain information about:
Upstream Data Path
The following example describes the upstream data path. 1. A request for
service is generated by a subscriber. The modem transmits the request as a
series of packets
to the Cisco CMTS on the upstream. 2. The cable line card receives the packets
on its upstream interface and forwards them to its onboard
processor. 3. The line card processor verifies the header check sequence
(HCS), frame check sequence (FCS), and
system identification number (SID), processes all fields in the DOCSIS MAC
header, and then removes the header. a. The line card examines and processes
the extended headers (Request, Acknowledgment, Privacy,
PHSs and Unsolicited Grand Synchronization header elements). If Baseline
Privacy Interface (BPI) is used, the processor also decrypts the Privacy EH
frames using the appropriate key. b. Bandwidth requests, acknowledgment (ACK)
requests, and unsolicited grant syncs are reformatted and passed to the
request ring of the Cisco cable line card.
What is a Cisco cBR Series Converged Broadband Router 2
What is a Cisco cBR Series Converged Broadband Router
Downstream Data Path
c. The DOCSIS MAC header is removed and another header is added, which
includes the SID, the upstream port information, and status bits that indicate
whether any errors were detected.
4. The packet is sent across the backplane to the forwarding processor (FP)
or the routing processor (RP) on the route processor.
5. The route processor performs packet operations such as access list
processing, classification, switching, and QoS. It is also where major routing
and IOS management functions (filtering) are run.
6. The packet is moved to the correct output queue and transmitted over the
backplane to the network uplink card (Ten Gigabit Ethernet) or another cable
interface line card.
7. The output card forwards the packet to the next interface point.
Downstream Data Path
The following example describes the downstream data path. 1. Data packets from
the Internet are received by the network uplink cards (Ten Gigabit Ethernet).
2. The packets are forwarded to the forwarding processor (FP) on the
Supervisor module. 3. The FP performs MAC classification to determine the type
of frame or packet to be processed. 4. The route processor performs access
list filtering, policing, and marking. 5. The route processor performs a
forwarding information base (FIB) lookup and rewrite.
a. The rewrite consists of a downstream header and 802.3 MAC header. b. The
downstream header contains destination primary SID, physical DS port number,
PHS rule index,
and some control bits and other fields. c. The packet is policed, shaped, and
prepared for queueing. Queueing is based on the priority of the
queue and the state of the flow bits from the card. The destination card
address (port) is pre-appended on the header of the packet being transmitted.
6. The packet is transmitted over the backplane to the appropriate cable
interface line card. 7. The cable interface line card receives the packet and
forwards it to all the ASICs on the line card.
a. Each ASIC decodes the header to determine if the packet is destined for one
of the downstream ports on that card. If so, the downstream header is removed
and the 802.3 MAC header is saved.
b. The MAC header is processed to determine how to build the DOCSIS MAC header
and what operations to perform on the packet. These might include pre-
appending the DOCSIS MAC header, computing the HCS and FCS, performing Packet
Header Suppression, and BPI encryption.
8. After the packet is ready, it is immediately transmitted on the
downstream.
What is a Cisco cBR Series Converged Broadband Router 3
Cisco cBR-8 Converged Broadband Router
What is a Cisco cBR Series Converged Broadband Router
Cisco cBR-8 Converged Broadband Router
The Cisco cBR-8 Converged Broadband Router (Cisco cBR-8) is a 13 rack unit
(RU) chassis. It supports multiple card modules and is designed with back-to-
back midplanes; a front facing Digital Midplane and a rear facing RF Midplane.
The front card modules plug into the Digital Midplane and the associated
Physical Interface Card (PIC) plugs into the rear of the chassis. All
permanent connections to the Cisco cBR-8 chassis are made at the rear.
Figure 1: Chassis Front View
1 Line Cards 2 Supervisor Cards
3 Front Power Entry Bezel
What is a Cisco cBR Series Converged Broadband Router 4
What is a Cisco cBR Series Converged Broadband Router Figure 2: Chassis Rear View with AC FPEM
Cisco cBR-8 Converged Broadband Router
1 Line Card PIC 2 Supervisor PIC 3 Fan Module
Figure 3: Chassis Rear View with DC FPEM
4 Lifting Handle 5 AC FPEM
What is a Cisco cBR Series Converged Broadband Router 5
Physical Description
What is a Cisco cBR Series Converged Broadband Router
1
Line Card PIC
2
Supervisor PIC
3
Fan Module
4 Lifting Handle 5 DC FPEM
The Cisco cBR-8 chassis supports: · Two Supervisor Cards · Two Supervisor PICs · Eight Cisco cBR line cards · Eight Cisco cBR RF PIC cards (seven when the chassis is configured in protect mode) or Eight Cisco cBR DPIC cards (if -R line cards are installed) · One Cisco cBR RF PROT PIC card (if the chassis is configured in RF protect mode) · Six DC Power Modules with redundant input feeds or six AC Power Modules · One Cisco cBR DC FPEM or one Cisco cBR AC FPEM · Five Fan Modules
Physical Description
Table 1: Cisco cBR-8 Chassis Physical Description Summary
Parameter Height Width
Overall Depth Weight Airflow
Description 13RU (22.75 in./57.78 cm) 17.45 in. (44.32 cm) without rack mounts 17.65 in. (44.83 cm) with rack mounts 28.075 in. (71.3 cm) 429 lb (195 kg) maximum fully loaded Front-to-back
Cisco cBR-8 Chassis Dimensions The below image shows the basic dimensions of the Cisco cBR-8 chassis.
What is a Cisco cBR Series Converged Broadband Router 6
What is a Cisco cBR Series Converged Broadband Router Figure 4: Basic Dimension
Physical Description
The below image shows the overall dimensions of the Cisco cBR-8 chassis with
optional cable management and rear door cable protection.
Figure 5: Overall Dimension
Cisco cBR-8 Chassis Features Digital Midplane
What is a Cisco cBR Series Converged Broadband Router 7
Slot Numbering–Physical and Logical
What is a Cisco cBR Series Converged Broadband Router
The Digital Midplane provides connectivity between various components in the
chassis. It provides the interconnect between the supervisors and all the
interface slots. This interconnect includes differential pairs used for ESI
data plan links, Gigabit Ethernet/Ten Gigabit Ethernet control plane links,
timing and single-ended signals used for status and control functions. It also
has connections for status and control of PICs, the power shelf, and the fan
modules.
RF Midplane
The RF midplane interconnects all RF-capable slots to allow backup RF line
cards to send and receive RF signals to and from an active RF line card PIC.
It is designed to support a maximum of 24 RF ports on a PIC with all ports
carrying signals with frequency content up to 1.2 GHz. It supports downstream,
upstream, and a mixture of both.
Rear Door (Optional)
The rear door provides protection to the PIC cables.
Lifting Handles
The Cisco cBR-8 chassis has four handles available for lifting. It is
recommended to remove all circuit cards before attempting to install the
chassis in a rack, but at a minimum, the front Supervisors and line cards
should be removed before lifting the chassis with the available handles.
The accessory kit that ships with the chassis includes rack mount rails. These
can be pre-assembled in the rack to help slide the chassis into place. An
optional front mounted lifting handle is also available to help with chassis
installation.
Rear Cable Connectivity
All permanent facility cabling is on the rear of the chassis. Connectors on
the PICs provide connectivity to the front mounted Supervisors and line cards.
Front Side LED and Temporary I/O Locations
The LEDs are situated at the lower middle area on all the front mounted cards.
Temporary I/O connectivity ports are available on the left side of the
Supervisor Card behind a removable door in the ejector handle.
Slot Numbering–Physical and Logical
Table 2: Physical Slot Numbering on the Cisco cBR-8 Router
Component Front and Rear Circuit Cards
Slot Numbering
Identified by a two number system. The numbers are separated by a forward
slash.
· The first number indicates the slot number (starting with 0 for the first
slot at the top).
· The second number indicates the side of the chassis. That is, 0 is for
front-mounted cards and 1 is for rear-mounted cards.
However, on Cisco IOS-XE, the show platform command does not show the second
number 0 for front-mounted cards.
Supervisor Cards
Identified as SUP0 and SUP1.
What is a Cisco cBR Series Converged Broadband Router 8
What is a Cisco cBR Series Converged Broadband Router
Slot Numbering–Physical and Logical
Component Power Supply Modules
Fan Modules
Slot Numbering
Numbered from P0 to P5 and these map to the facility power outlet markings on
the rear of the chassis.
Numbered from P10 (the top fan module slot) to P14 (the bottom fan module
slot).
Figure 6: Slot Numbering–Front of the Chassis With AC Power Module
What is a Cisco cBR Series Converged Broadband Router 9
Slot Numbering–Physical and Logical
What is a Cisco cBR Series Converged Broadband Router
Figure 7: Slot Numbering–Front of the Chassis With DC Power Module
Figure 8: Slot Numbering–Rear of the Chassis With AC Power Module
What is a Cisco cBR Series Converged Broadband Router 10
What is a Cisco cBR Series Converged Broadband Router Figure 9: Slot Numbering–Rear of the Chassis With DC Power Module
Slot Numbering–Physical and Logical
Table 3: Logical Slot Numbering on the Cisco cBR-8 Router
Variable
Component
Description
Valid Range/Values
Release–Cisco IOS-XE Release 3.15.0S
Slot
Interface card
Slot where the interface card 0 to 3 and 6 to 9
resides.
Supervisor card
Slot where the Supervisor card resides.
4 or 5
Subslot
Interface card
Secondary slot where the 0 interface card resides.
Supervisor card Secondary slot where the 1 Supervisor card resides.
Port
Interface card
Downstream controller port 0 to 7
(downstream)
on the interface card.
Interface card (upstream)
Upstream controller port on 0 to 15 the interface card.
Supervisor card
Controller port on the Supervisor card.
0 to 7 (For Ten Gigabit Ethernet ports)
What is a Cisco cBR Series Converged Broadband Router 11
Field Replaceable Units
What is a Cisco cBR Series Converged Broadband Router
Variable
Component
cable-interface-index Interface card
logical-channel-index NA
rf-channel
Interface card (downstream)
Interface card (upstream)
Supervisor card
wideband-channel Interface card
Supervisor card
Description
Valid Range/Values
MAC domain index of the 0 to 15 interface card.
NA
NA
RF channel number on the 0 to 159 interface card.
RF channel number on the 0 to 11 interface card.
RF channel number on the NA Supervisor card.
Wideband channel number on 0 to 63 the interface card.
Wideband channel number on NA the Supervisor card.
Field Replaceable Units
Table 4: Cisco cBR-8 Chassis Modules and their Function
Hardware Module Supervisor (SUP) Supervisor PIC Subscriber Side Interface Card
(SSI Card) SSI PIC Power Modules (AC or DC)
Function Description
The route and forwarding processor of the system and includes integrated
backhaul capability.
Provides the supervisor physical interface to the facility located on these
cards.
Provides the service side functionality such as DOCSIS, Edge QAM, EPON, or
other service blades.
Provides the physical interface to the facility for the SSI Cards.
Provide power conversion, filtering, and conditioning from facility input
power to the required -52V midplane power that is used within the chassis.
There are specific AC and DC modules depending on the facility input voltage.
The power modules provide their own cooling using internal fans.
What is a Cisco cBR Series Converged Broadband Router 12
What is a Cisco cBR Series Converged Broadband Router
Field Replaceable Units
Hardware Module Facility Power Entry Module (FPEM) (AC/DC)
Power Cassette Module
Fan Module
Table 5: Card Slot Pitch Definitions
Slot Type Supervisor Slots Supervisor PIC Slots SSI Card Slots SSI PIC Slots
Power Cassette Module Facility Power Entry Module (FPEM) (AC/DC) Fan Module
Table 6: Maximum Weight for Cards and Modules
Module Supervisor Slots Supervisor PIC Slots SSI Card Slots NSI/SSI Slots SSI
PIC Slots NSI/SSI PIC Slots Power Cassette Module
Function Description Provides the physical hookup interface and
interconnection to the power modules for either the AC or DC input voltage.
The digital communication from the power modules to the digital midplane; and
the power interconnect from the power modules to the midplane Bus Bar. This
module is field replaceable to allow the facility to change from AC to DC or
DC to AC in the future without having to replace the chassis. Provides the
physical support and keying for the power supply modules. It is keyed with a
corresponding FPEM to determine AC or DC support. Provides forced air cooling
for the front and rear card slots.
Quantity and Pitch 2 in the front of chassis on a 2.75″ pitch 2 in the rear of
chassis on a 2.75″ pitch 8 in the front of chassis on a 1.48″ pitch 8 in the
rear of chassis on a 1.48″ pitch 6 power supply bays in the front of the
chassis 1 in the bottom, rear of the chassis 5 in the rear of the chassis on a
3.5″ pitch
Maximum Weight 26 lbs. 6 lbs. 19 lbs. 19 lbs. 5 lbs. 5 lbs. 6 lbs.
What is a Cisco cBR Series Converged Broadband Router 13
Field Replaceable Units
What is a Cisco cBR Series Converged Broadband Router
Module
Maximum Weight
Power Cassette (AC/DC)
17 lbs.
Facility Power Entry Module (FPEM) (AC/DC) 15 lbs.
Fan Module
4 lbs.
13RU Chassis Estimated Weight (with midplanes and 85 lbs.1 Bus Bar)
13RU Loaded Chassis Estimated Weight (maximum) 429 lbs.
1 117 lbs. with Power Cassette Module and FPEM (recommended configuration during installation)
Table 7: Card Slot Power Allocation
Module Supervisor Slots Supervisor PIC Slots SSI Card Slots SSI PIC Slots Fan Module Bus Bar + Midplane Loss cBR-8 Total Power Allocation (power to Bus Bar from FPEM) cBR-8 Facility Power Requirement
Maximum Power Allocated (Watts) 930 120 530 60 170 150 7820
9000
Table 8: Chassis System Module Overall Dimensional Envelopes
Module Supervisor Card Supervisor PIC SSI Card SSI PIC Fan Module AC FPEM DC FPEM AC Power Supply Module
Envelope Size (width x height x depth) 17.24″ x 2.75″ x 19.99″ 11.80″ x 2.75″ x 7.82″ 17.24″ x 1.48″ x 19.99″ 11.80″ x 1.48″ x 7.82″ 5.16″ x 3.50″ x 8.39″ 17.45″ x 3.85″ x 10.08″ 17.45″ x 3.85″ x 10.08″ 4.00″ x 1.60 x 16.94″
What is a Cisco cBR Series Converged Broadband Router 14
What is a Cisco cBR Series Converged Broadband Router
Supervisor
Module DC Power Supply Module Power Cassette Module
Envelope Size (width x height x depth) 4.00″ x 1.60 x 16.94″ 17.3″ x 3.7″ X 16.9″
Supervisor
Cisco cBR-8 Converged Cable Access Router Supervisor 160G
The Supervisor is the processor of the Cisco cBR. It consists of a forward
processor (FP) complex and route processor (RP) complex. The FP complex
performs data forwarding, baseline router packet operations including MAC
classification, Layer 2 and the various Layer 3 forwarding, QoS
classification, security ACLs, VPNs, policing, shaping, load balancing, egress
packet buffering, queueing, and egress packet scheduling functions. The FP
complex supports Network Address Translation (NAT), flexible pattern matching,
and tunneling protocols. The RP complex performs route processing, Cisco cBR
chassis management, and runs the network operating system and its controls.
The Supervisor supports:
· Eight Ten Gigabit Ethernet backhaul interfaces. · 1+1 active/standby
redundancy. · Chassis management of the Cisco cBR including activation and
initialization of the other cards, selection
and switch over of the active and standby cards, image management and
distribution, logging facilities, distribution of user configuration
information . · DOCSIS Timing Interface (DTI) client and server ports. ·
Online insertion and removal (OIR).
The Supervisor consists of the following field replaceable units (FRUs): ·
Supervisor Card · Supervisor physical interface card (PIC)
The Cisco cBR-8 supports: · Two 160G Supervisor Cards · Two 8x10G Supervisor
PICs
Supervisor Card The Supervisor Card is the route processor of the Cisco cBR
and includes integrated backhaul capability. It is installed in the front of
the Cisco cBR chassis. The plastic latch maintains the alignment of the
spring-loaded ejector with the faceplate. The Supervisor Card has a tethered
door to allow access to the ports on its faceplate.
What is a Cisco cBR Series Converged Broadband Router 15
Cisco cBR-8 Converged Cable Access Router Supervisor 160G Figure 10: Supervisor Card
What is a Cisco cBR Series Converged Broadband Router
1 Spring-loaded ejector 2 Tethered I/O door 3 Plastic latch 4 Removable air
filter
Table 9: Physical Specifications of the Supervisor Card
Unit Depth Width Height Maximum weight
Table 10: Ports on the Supervisor Card
Port USB ports
Console port
5 LEDs 6 Support rails 7 USB ports 8 Console port
Value 20 in (50.8 cm) 17.2 in (43.68 cm) 2.8 in (7.11 cm) 26 lb (11.79 kg)
Description The Supervisor Card has two type-A USB ports. These ports are used
for connecting external memory sticks or flash drives to load configurations.
The Supervisor Card has one mini type-B USB console port. This port is an
asynchronous EIA/TIA-232 serial port used to connect a terminal to the
Supervisor Card for local administrative access.
What is a Cisco cBR Series Converged Broadband Router 16
What is a Cisco cBR Series Converged Broadband Router
Cisco cBR-8 Converged Cable Access Router Supervisor 160G
Note The ports on the Supervisor Card are used for temporary connections. For all permanent connections, including the console connection, you must use the ports on the Supervisor PIC installed in the rear of the chassis.
The Supervisor Card has the following LEDs: LED PWR STAT RP STAT RP ACT FP STAT FP ACT INSI ACT ALRM RPLC
Description Power status LED RP status LED RP active LED FP status LED FP active LED iNSI active LED Alarm LED Replace LED
The router supports the following Supervisor Cards:
· CBR-CCAP-SUP-60G–Supervisor Card with 60 Gbps forwarding capacity. It
supports a maximum of four interface cards, working in 3+1 protection mode, on
the Cisco cBR-8 router. It supports a maximum of 72268 unicast flows or 88268
modular quality of service (MQoS) flows. The maximum number of unicast and
MQoS flows supported is 88268.
Note If you are using the CBR-CCAP-SUP-60G Supervisor Card in Cisco IOS-XE
Release 3.15.0S, the output of the show inventory command displays the CBR-
CCAP-SUP-160G PID instead of the CBR-CCAP-SUP-60G PID.
· CBR-CCAP-SUP-160G–Supervisor Card with 160 Gbps forwarding capacity. It
supports a maximum of eight interface cards, working in N+1 protection mode,
on the Cisco cBR-8 router.
Important Different Supervisor Cards cannot coexist on a Cisco cBR-8 router.
We recommend that you install the Supervisor Cards with the same capacity in
the chassis to ensure proper redundancy support.
Supervisor PIC The Supervisor PIC provides the physical interface to the
Supervisor Card. It is installed in the rear of the Cisco cBR chassis.
What is a Cisco cBR Series Converged Broadband Router 17
Cisco cBR-8 Converged Cable Access Router Supervisor 160G Figure 11: Supervisor PIC
What is a Cisco cBR Series Converged Broadband Router
1 Ejector lever 2 Timing port (1 PPS) 3 Timing port (10 MHz) 4 GPS port 5 DTI
ports 6 CM/DTP port
Table 11: Physical Specifications of the Supervisor PIC
Unit Depth Width Height Maximum weight
7 NME ports 8 Console port 9 Auxiliary port 10 Captive screws 11 LEDs 12 SFP+
ports
Value 7.82 in (19.86 cm) 11.8 in (29.97 cm) 2.8 in (7.11 cm) 6 lb (2.72 kg)
What is a Cisco cBR Series Converged Broadband Router 18
What is a Cisco cBR Series Converged Broadband Router
Cisco cBR-8 Converged Cable Access Router Supervisor 160G
Table 12: Ports on the Supervisor PIC
Port SFP+ ports
Timing ports GPS port DTI ports
CM/DTP port NME ports
Console port
Auxiliary port
The Supervisor PIC has the following LEDs: LED PIC_STAT INSI_ACT REPLACE SFP+
DTI Normal DTI Fast NME Lnk
Description
The Supervisor PIC has eight Ten Gigabit Ethernet SFP (SFP+) ports. These
ports are used to connect it to the switch or router. These ports provide
backhaul connection to the WAN network.
The Supervisor PIC has two timing ports, 1 PPS and 10 MHz ports, which are
reserved for future use.
The Supervisor PIC has a GPS port, which is reserved for future use.
The Supervisor PIC has two DTI ports. These ports are used for connecting to
DTI server as a reference clock source.
The Supervisor PIC has a CM/DTP port, which is reserved for future use.
The Supervisor PIC has two NME ports. These ports are the Gigabit Ethernet
management ports. One port is used for network management and is used to
connect to a switch and the other port is reserved for future use.
The Supervisor PIC has one RJ-45 console port. This port is an asynchronous
EIA/TIA-232 serial port used to connect a terminal to the Supervisor PIC for
local administrative access.
The Supervisor PIC has one auxiliary port. This port is used to connect a
terminal server to the Supervisor PIC for verifying the system status.
Description
Supervisor PIC status LED
iNSI active LED
Replace LED
SFP+ module and link status LED
DTI normal mode status LED
DTI fast mode status LED
NME module link status LED
What is a Cisco cBR Series Converged Broadband Router 19
Cisco cBR-8 Converged Cable Access Router Supervisor 250G
What is a Cisco cBR Series Converged Broadband Router
LED NME Act SSD CM/DTP Lnk CM/DTP Act
Description NME module link active LED SSD access status LED Reserved for future use Reserved for future use
Cisco cBR-8 Converged Cable Access Router Supervisor 250G
The Cisco® cBR-8 Converged Cable Access Router Supervisor 250G perform the
data forwarding and routing processing functions of carrier-class and high
performance cBR-8 Converged Cable Access Router. Not only does the supervisor
provide advanced routing capabilities, but it also monitors and manages other
components in the Cisco® cBR-8 Converged Cable Access Router. The supervisor
consists of two FRU (Field Replaceable Unit): Supervisor and Supervisor PIC
(Physical Interface Card). Supervisor PIC card has all the physical interface
ports and related PHY component on board. As the management processor for the
Cisco® cBR-8 Converged Cable Access Router, the supervisor also performs the
following management functions: chassis management including activation and
initialization of the other cards, selection/switchover of active vs. standby
cards, image management and distribution, logging facilities, distribution of
user configuration information, monitor and manage the power and temperature
of system components such as line cards, power supplies, and fans, provide
out-of-band system console and auxiliary ports, USB, and Ethernet ports for
router configuration and maintenance etc. Supervisor works together with SUP
PIC offering below main features:
· Provides up to 250Gbps Downstream and Upstream aggregated forwarding
capacity
· Flexible data path interconnection between active and standby supervisors to
support a total of 2x100G worth of active-active backhaul bandwidth
· Integrate full range of industry-leading Cisco IOS® Software features and
services
· SSD memory (240G) for syslog/debug information/image/package storage
· Run with the modular Cisco IOS XE Software for the Cisco® cBR-8 Converged
Cable Access Router
· Provide 1+1 redundant-supervisor support
· Two Integrated 1x100G NSI (Network Side Interface) backhaul interfaces on
Supervisor PIC. The interface can support either QSFP28 or QSFP+ module
· Two RJ45 GE network management ports are hardware capable of supporting
Synchronous Ethernet
· High Availability: 1+1 active/active NSI or iNSI interface redundancy, 1+1
DTI client (PIC) redundancy, 1+1 network timing redundancy (DOCSIS, PTP,
Synchronous Ethernet)
· Offer field-replaceable and hot-swappable capabilities to help ensure
minimal service disruption
The Cisco cBR-8 supports:
· Two 250G Supervisor Cards
· Two 2x100G Supervisor PICs
What is a Cisco cBR Series Converged Broadband Router 20
What is a Cisco cBR Series Converged Broadband Router
Cisco cBR-8 Converged Cable Access Router Supervisor 250G
Supervisor Card
The Supervisor Card is the route processor of the Cisco cBR and includes
integrated backhaul capability. It is installed in the front of the Cisco cBR
chassis. The plastic latch maintains the alignment of the spring-loaded
ejector with the faceplate. The Supervisor Card has a tethered door to allow
access to the ports on its faceplate.
Figure 12: Supervisor Card
1 Spring-loaded ejector 2 Tethered I/O door 3 Plastic latch 4 Removable air
filter
Table 13: Physical Specifications of the Supervisor Card
Unit Depth Width Height Maximum weight
Table 14: Ports on the Supervisor Card
Port USB ports
5 LEDs 6 Support rails 7 USB ports 8 Console port
Value 19.98 in (50.7 cm) 16.27 in (41.3 cm) 2.82 in (7.16 cm) 26 lb (11.8 kg)
Description The Supervisor Card has two type-A USB ports. These ports are used
for connecting external memory sticks or flash drives to load configurations.
What is a Cisco cBR Series Converged Broadband Router 21
Cisco cBR-8 Converged Cable Access Router Supervisor 250G
What is a Cisco cBR Series Converged Broadband Router
Port Console port
Description
The Supervisor Card has one mini type-B USB console port. This port is an
asynchronous EIA/TIA-232 serial port used to connect a terminal to the
Supervisor Card for local administrative access.
Note The ports on the Supervisor Card are used for temporary connections. For all permanent connections, including the console connection, you must use the ports on the Supervisor PIC installed in the rear of the chassis.
The Supervisor Card has the following LEDs: LED PWR STAT RP STAT RP ACT FP STAT FP ACT INSI ACT ALRM RPLC
Description Power status LED RP status LED RP active LED FP status LED FP active LED iNSI active LED Alarm LED Replace LED
Important Different Supervisor Cards cannot coexist on a Cisco cBR-8 router.
We recommend that you install the Supervisor Cards with the same capacity in
the chassis to ensure proper redundancy support.
Supervisor PIC The Supervisor PIC provides the physical interface to the
Supervisor Card. It is installed in the rear of the Cisco cBR chassis.
What is a Cisco cBR Series Converged Broadband Router 22
What is a Cisco cBR Series Converged Broadband Router Figure 13: Supervisor PIC
Cisco cBR-8 Converged Cable Access Router Supervisor 250G
1 Ejector lever 2 QSFP ports 3 Auxiliary port 4 DTI ports 5 NME ports 6 CM/DTP
port 7 TOD port
Table 15: Physical Specifications of the Supervisor PIC
Unit Depth Width Height Maximum weight
8 Timing port (1 PPS) 9 Timing port (10 MHz) 10 Console port 11 LEDs 12
Captive screws 13 10G LED
Value 8.1 in (20.6 cm) 11.79 in (29.9 cm) 2.82 in (7.16 cm) 3.44 lb (1.56 kg)
What is a Cisco cBR Series Converged Broadband Router 23
Cisco cBR-8 Converged Cable Access Router Supervisor 250G
What is a Cisco cBR Series Converged Broadband Router
Table 16: Ports on the Supervisor PIC
Port QSFP ports
Timing ports TOD port DTI ports
CM/DTP port NME ports
Console port
Auxiliary port
The Supervisor PIC has the following LEDs: LED PIC_STAT INSI_ACT REPLACE SFP+
DTI Normal DTI Fast NME Lnk NME Act
Description
The Supervisor PIC has two QSFP ports. These ports are used to connect it to
the switch or router. These ports provide backhaul connection to the WAN
network.
The Supervisor PIC has two timing ports, 1 PPS and 10 MHz ports, which are
reserved for future use.
The Supervisor PIC has a Time of Date (ToD) port.
The Supervisor PIC has two DTI ports. These ports are used for connecting to
DTI server as a reference clock source.
The Supervisor PIC has a CM/DTP port, which is reserved for future use.
The Supervisor PIC has two NME ports. These ports are the Gigabit Ethernet
management ports. One port is used for network management and is used to
connect to a switch and the other port is reserved for future use.
The Supervisor PIC has one RJ-45 console port. This port is an asynchronous
EIA/TIA-232 serial port used to connect a terminal to the Supervisor PIC for
local administrative access.
The Supervisor PIC has one auxiliary port. This port is used to connect a
terminal server to the Supervisor PIC for verifying the system status.
Description
Supervisor PIC status LED
iNSI active LED
Replace LED
SFP+ module and link status LED
DTI normal mode status LED
DTI fast mode status LED
NME module link status LED
NME module link active LED
What is a Cisco cBR Series Converged Broadband Router 24
What is a Cisco cBR Series Converged Broadband Router
Interface Cards
LED SSD CM/DTP Lnk CM/DTP Act
Description SSD access status LED Reserved for future use Reserved for future use
Interface Cards
The Subscriber Side Interface (SSI) card (line card) provides the DOCSIS
MAC/PHY or DOCSIS MAC function in the Cisco cBR router. The front of the line
card has spring-loaded ejectors with plastic latches, on both sides of the
interface line card. The plastic latch maintains the spring-loaded ejector’s
alignment with the faceplate. The line cards have perforated grill faceplate
that allow air flow into the card. There is a removable filter in the front
panel of the line card. This filter filters the air flowing into the chassis
through the perforated grill faceplate. All interface cards in the Cisco cBR-8
chassis are designed for High Availability (HA) with a N+1 redundancy scheme.
The Cisco cBR-8 supports the following interface cards:
· Interface Line Card (SSI Card, DOCSIS MAC or DOCSIS MAC/PHY line
card)–Provides the service side functionality such as DOCSIS, Edge QAM, EPON,
or other service blades.
· RF Through PIC or Digital Through PIC–Connects to the interface line card.
This PIC provides the physical interface to the facility for the line card.
· RF Protect PIC or Digital Protect PIC–Provides connection of the redundant
line card to the appropriate Through PIC.
Interface Line Card Blank
Apart from the operational interface line cards, an interface line card blank
(line card blank) is installed in any empty unused line card slot, to ensure
proper airflow within the operational chassis.
PIC Blank
Apart from the operational PICs, a PIC blank is installed in any empty unused
PIC slot, to ensure proper airflow within the operational chassis.
Protect Zone
To configure N+1 RF redundancy, the interface line card installed in the
uppermost slot is configured as the Protect line card with the Protect PIC
installed in the corresponding PIC slot. The working line cards and the
Through PIC cards installed successively below the Protect line card and PIC
card form a Protect Zone. The following are the restrictions for the Protect
Zone:
· Each protect zone has one Protect PIC card at the top with a set of Through
PIC cards installed successively below the protect line card.
What is a Cisco cBR Series Converged Broadband Router 25
DOCSIS MAC/PHY Cards
What is a Cisco cBR Series Converged Broadband Router
· A PIC card blank should not be installed within a protect zone. It is not
necessary to have a line card in every slot of a protect zone.
· If another line card is configured as a Protect line card, then it forms a
separate Protect Zone with the successive working line cards below it.
· Every Protect line card must have an Protect PIC installed in the
corresponding PIC slot in the rear of the chassis.
Refer to the FRU list and the ordering information for more information.
DOCSIS MAC/PHY Cards
A DOCSIS MAC/PHY line card is paired with an RF Physical Interface Card (RF
Through PIC or RF Protect PIC).
RF Interface Line Cards The Cisco cBR chassis supports the following RF
Interface Line Cards:
· DOCSIS MAC/PHY SSI Card with two downstream D3.1 modules and one upstream
D3.1 module installed. [PID: CBR-LC-8D31-16U31] · DOCSIS MAC/PHY SSI Card with
one downstream D3.1 modules and one upstream D3.1 module installed. [PID: CBR-
LC-4D31-16U31] · DOCSIS MAC/PHY SSI Card with two downstream D3.0 modules and
one upstream D3.0 module installed. [PID: CBR-LC-8D30-16U30] Figure 14: RF
Interface Line Card
1 Plastic latch 2 Removable Filter
3 LEDs 4 Spring-loaded ejector
What is a Cisco cBR Series Converged Broadband Router 26
What is a Cisco cBR Series Converged Broadband Router
DOCSIS MAC/PHY Cards
Table 17: Physical Specifications of Interface Line Card
Unit Depth Width Height Maximum Weight
Value 20 in (50.8 cm) 17.2 in (43.7 cm) 1.5 in (3.8 cm) 19 lbs (8.61 kg)
Table 18: Ports in the Interface Line Card
Ports Downstream ports
Upstream DOCSIS ports
The line card has the following LEDs: LED STATUS PROTECT REPLACE
Description The SSI Card has 8 downstream ports. These ports support
downstream DOCSIS and MPEG traffic on the downstream PHY modules. The SSI Card
has 16 upstream DOCSIS ports. These ports support upstream DOCSIS traffic on
the upstream PHY module.
Description Status of the card. Protect configuration status of the card.
Indicates if the card must be replaced.
Downstream PHY Module
Each interface line card supports two downstream PHY modules. The Cisco cBR
chassis supports the following downstream PHY module versions:
· Downstream D3.0 (supporting DOCSIS 3.0). [PID: CBR-D30-DS-MOD]
Note Cisco IOS XE Gibraltar 16.12.x and later releases do not support downstream D3.0 module. [PID: CBR-D30-DS-MOD] · Downstream D3.1 (supporting DOCSIS 3.1). [PID: CBR-D31-DS-MOD]
Note The Downstream D3.1 module has a green label on it. The following limitations are applicable to the downstream PHY modules:
What is a Cisco cBR Series Converged Broadband Router 27
DOCSIS MAC/PHY Cards
What is a Cisco cBR Series Converged Broadband Router
· All interface line cards in the chassis must have the same downstream PHY
module version; that is all D3.0 or D3.1 modules.
· In an interface line card, both the downstream PHY modules must be the same
version; that is both D3.0 or both D3.1 modules.
· The downstream D3.1 modules are supported only with the Cisco IOS-XE Release
3.16.0S and later releases.
· If the downstream D3.1 modules are installed with the Cisco IOS-XE Release
3.15.0S, the downstream D3.1 modules will boot up, but not function properly.
· With the Cisco IOS-XE Release 3.16.0S, the downstream D3.1 module provides
operational readiness for the implementation of DOCSIS 3.1 functions and
features.
Upstream PHY Module Each interface line card supports one upstream PHY module.
The Cisco cBR chassis supports the following upstream PHY module versions:
· Upstream D3.0 (supporting DOCSIS 3.0). [PID: CBR-D30-US-MOD] · Upstream D3.1
(supporting DOCSIS 3.1). [PID: CBR-D31-US-MOD] Note The Upstream D3.1 module
has a green label on it.
The following limitations are applicable to the upstream PHY modules: · All
interface line cards in the chassis must have the same upstream PHY module
version; that is all D3.0 or D3.1 modules. · The upstream D3.1 module is
supported only with the Cisco IOS-XE Release 3.18.0S and later releases. · If
the upstream D3.1 modules are installed with the Cisco IOS-XE Release 3.17.0S,
the upstream D3.1 modules will boot up, but not function properly. · With the
Cisco IOS-XE Release 3.18.0S, the upstream D3.1 module provides operational
readiness for the implementation of DOCSIS 3.1 functions and features.
RF PICs The RF PICs are installed into the rear of the Cisco cBR chassis. The
RF PICs support the PHY and RF interface connections for the interface line
cards. The following are the two types of RF PICs used in the Cisco cBR
chassis:
· RF Through PIC · RF Protect PIC
RF Through PIC The RF Through PIC connects to the line cards on the digital
and RF midplanes, and provides downstream and upstream physical connectivity.
It connects to the DOCSIS MAC/PHY line card.
What is a Cisco cBR Series Converged Broadband Router 28
What is a Cisco cBR Series Converged Broadband Router Figure 15: RF Through PIC
DOCSIS MAC/PHY Cards
1 Downstream ports DS0 to DS7
4
2 Upstream ports US0 to US7 and US8 to US15 5
3 Ejector Lever
LEDs Product Identifier (PID)
Table 19: Physical Specifications of the RF PICs
Unit Depth Width Height Maximum Weight
Value 7.8 in (19.8 cm) 11.8 in (30 cm) 1.5 inch (3.8 cm) 5 lbs (2.26 kg)
The RF Through PIC has the following ports: Ports DS0 to DS7
Description
The RF Through PIC has eight 50-1200 MHz RF connector ports that provide
downstream channel connectivity.
What is a Cisco cBR Series Converged Broadband Router 29
DOCSIS MAC Cards
What is a Cisco cBR Series Converged Broadband Router
Ports US0 to US7 and US8 to US15
Description
The RF Through PIC has sixteen 5-204 MHz RF connector ports that provide
upstream channel connectivity.
The RF PICs have the following LEDs: LED STATUS PROTECT REPLACE
Description Status of the card. Protect configuration status of the card. Indicates if the card must be replaced.
RF Protect PIC
The RF Protect PIC provides redundancy support for the N+1 high availability
features, to the RF Through PICs in the chassis. It has only the LEDs on its
faceplate. It does not have the downstream and upstream ports.
Figure 16: RF Protect PIC
DOCSIS MAC Cards
A DOCSIS MAC line card is paired with an Digital Interface Card (DPIC).
Digital Interface Line Cards The Cisco cBR chassis supports the following
Digital Interface Line Cards:
· DOCSIS MAC SSI Card (40Gbps). [PID: CBR-CCAP-LC-40G-R] What is a Cisco cBR
Series Converged Broadband Router 30
What is a Cisco cBR Series Converged Broadband Router
DOCSIS MAC Cards
· DOCSIS MAC SSI Card (80Gbps). [PID: CBR-CCAP-LC-G2-R] Digital PICs The Cisco
Digital Physical Interface Card (DPIC) is used to connect a cBR-8 DOCSIS MAC
Line card to an external Remote PHY Node Device (RPD) or Remote PHY Shelf
product. The DPIC is installed in the cBR-8 and connects to a RPD node/shelf
via Metro Ethernet. It supports both downstream and upstream traffic. The
Cisco cBR chassis supports the following Digital PICs:
· cBR CCAP Digital Through PIC. [PID: cBR-DPIC-8X10G] · cBR-8 2x100G Digital
Physical Interface Card. [PID: cBR-DPIC-2X100G] cBR CCAP Digital Through PIC
Table 20: Physical Specifications of the DPIC
Unit Dimensions Width 10.96 in (27.8cm) Height 1.43 in (3.6cm) Depth 7.32 in
(18.6cm) with
handle Weight 2.943lb (1.335kg)
The DPIC supports: · Eight ten gigabit Ethernet SFP+ interfaces · 80 gigabit
non-blocking switching architecture with 40+40 protection scheme · Cisco SFP-
10G-SR-S/Cisco SFP-10G-LR-S/Cisco SFP-10G-ZR-S/Cisco SFP-10G-ER-S/SFP-10G-
AOC3M= optic modules · MACSec and 1588 TC
The faceplate of the Cisco DPIC has the following: · Optic Cable Clip–Helps
route and manage the optic cables. · 8 x SFP+ ports–Used as 8 x 10GE lanes for
DOCSIS traffic to the Cisco RPDs. · 10GE Link Status LED–Indicates the status
of the 10GE link. · Status LED–Indicates the status of the Cisco DPIC. ·
Replace LED–Indicates the Cisco DPIC must be replaced.
cBR-8 2x100G Digital Physical Interface Card
What is a Cisco cBR Series Converged Broadband Router 31
DOCSIS MAC Cards
What is a Cisco cBR Series Converged Broadband Router
1 Link LEDs 2 QSFP Ports 3 Plastic latch
4 LEDs 5 Product Identifier (PID)
Table 21: Physical Specifications of the 2x100G DPIC
Unit Dimensions
Width 10.96 in (27.8cm) Height 1.43 in (3.6cm) Depth 7.32 in (18.6cm) with
handle Weight 2.943lb (1.335kg)
The 2x100G DPIC supports: · Two hundred gigabit Ethernet QSFP interfaces ·
100GE and 10GE working modes · At least two 4x10G interfaces via breakout
cables · 1x100G + 1x100G interfaces with link layer redundancy · QSFP-100GE-LR
/QSFP-100GE-SR/QSFP-100GE-SM-SR/QSFP-40G-LR (4x10G mode) /QSFP-40G-SR (4x10G
mode) /QSFP-4X10G-AOCxM (4x10G mode) optic modules · Backward compatible with
SUP-60, SUP-160 and SUP-250
The faceplate of the 2x100G DPIC has the following: · Optic Cable Clip–Helps
route and manage the optic cables. · 2x QSFP ports–Used as 1 x 100GE or 8 x
10GE interfaces.
What is a Cisco cBR Series Converged Broadband Router 32
What is a Cisco cBR Series Converged Broadband Router
Power System
· Link Status LED–Indicates the status of the link. QSFP0 port is mapped to
LED 0,2,4,6 if it works in 10GE mode and mapped to LED 0 if works in 100GE
mode. QSFP1 port is mapped to LED 1,3,5,7 if it works in 10GE mode and mapped
to LED 1 if works in 100GE mode.
· Status LED–Indicates the status of the 2x100G DPIC. · Replace LED–Indicates
the 2x100G DPIC must be replaced.
Note If the QSFP-100G-SM-SR module is used in the DPIC 100G card, the cBR-8
router chassis ambient temperature must be limited to 50ºC at sea level.
Power System
The Cisco cBR chassis is powered using AC or DC power inputs. The power system
consists of the following modules:
· Power Cassette Module · AC or DC Facility Power Entry Modules (FPEM) · AC or
DC Power Modules
The Cisco cBR power system supports: · Load sharing between the Power Modules
· N+1 redundancy for the DC power systems, and N+1 or 1+1 redundancy for the
AC power systems · Online Insertion and Removal (OIR)
The Cisco cBR-8 Converged Broadband Router (cBR-8) supports: · One Power
Cassette Module · One FPEM · Six Power Modules
Redundancy · For the DC-powered Cisco cBR with N+1 redundancy, the chassis
must have at least five operational DC Power Modules to be functional.
Note The DC-powered Cisco cBR allows A and B inputs to each DC Power Module to
support separate A and B facility feeds. However, only one feed is necessary
to support full power operation.
· For the AC-powered Cisco cBR with N+1 redundancy, the chassis must have at
least four operational AC Power Modules to be functional.
What is a Cisco cBR Series Converged Broadband Router 33
Power System
What is a Cisco cBR Series Converged Broadband Router
· For the AC-powered Cisco cBR with 1+1 redundancy, the chassis must have six
operational AC Power Modules to be functional.
Power Cassette Module The Power Cassette Module provides the physical support
and keying for the Power Modules. It is keyed with a corresponding FPEM to
determine AC or DC support. This module is installed in the front of the Cisco
cBR chassis.
Figure 17: AC Power Cassette Module
1
Mounting flange
Figure 18: DC Power Cassette Module
2
AC Power Module bay
1
Mounting flange
2
DC Power Module bay
Table 22: Physical Specifications of the Power Cassette Module
Unit AC Power Cassette Module Depth Width Height Maximum weight
Value
16.9 in (42.92 cm) 17.3 in (43.94 cm) 3.7 in (9.4 cm) 17 lb (7.7 kg)
What is a Cisco cBR Series Converged Broadband Router 34
What is a Cisco cBR Series Converged Broadband Router
Power System
Unit
Value
DC Power Cassette Module Depth Width Height Maximum weight
16.9 in (42.92 cm) 17.3 in (43.94 cm) 3.7 in (9.4 cm) 17 lb (7.7 kg)
The Power Cassette Module supports six Power Modules. The front Power Module slots are numbered from P0 to P5 on the Power Cassette Module and these designations map to the facility power outlet markings on the rear of the chassis.
FPEM The FPEM provides the following:
· Physical interface and interconnection to the Power Modules for either AC or
DC input voltage. · Digital communication from the Power Modules to the
digital midplane. · Power interconnection from the Power Modules to the
midplane bus bar.
The FPEM is installed in the rear of the Cisco cBR chassis. It is field
replaceable to allow the facility to change from AC to DC power, or vice
versa, without replacing the chassis.
Figure 19: AC FPEM
Note Starting from April, 2018, Cisco ships the cBR8 router with AC FPEM VER 02 with no AC PRESENT LEDs as shown in the figure. VER 01 of AC FPEM has P0 AC PRESENT through P5 AC PRESENT that indicates input AC power for the corresponding AC Power Module (also indicated on the front-side of the Power Module).
1
Mounting flange
2
Handle
4
Power Enable LED
5
AC power input connector
What is a Cisco cBR Series Converged Broadband Router 35
Power System
3
Power switch
Figure 20: DC FPEM
What is a Cisco cBR Series Converged Broadband Router
1
Mounting flange
2
Handle
3
Power switch
4
Terminal block cover
5
Terminal bolt
Table 23: Physical Specifications of the FPEM
Unit AC FPEM Depth Width Height Maximum weight DC FPEM Depth Width
6
Negative lead
7
Positive lead
8
Power Enable LED
9
DC Present LED
—
Value
10.08 in (25.6 cm) 17.45 in (44.32 cm) 3.85 in (9.78 cm) 15 lb (6.8 kg)
10.08 in (25.6 cm) 17.45 in (44.32 cm)
What is a Cisco cBR Series Converged Broadband Router 36
What is a Cisco cBR Series Converged Broadband Router
Power System
Unit Height Maximum weight
Value 3.85 in (9.78 cm) 15 lb (6.8 kg)
Both AC and DC FPEMs have a power switch to enable power to the entire Cisco
cBR chassis. The AC FPEM has the following LED:
· POWER ENABLE–Power status LED
The DC FPEM has the following LEDs: · POWER ENABLE–Power status LED · DC PRESENT–Input DC power status LED for each terminal block
Power Module
The Power Modules provide the power conversion, filtering, and conditioning
from facility input power to the required -52 V midplane power that is used
within the chassis. Both AC and DC Power Modules are available depending on
the facility input voltage. These modules have internal fans for cooling.
The Power Modules are installed in the front of the Cisco cBR chassis.
Figure 21: AC Power Module
1 Handle
2 Screw
What is a Cisco cBR Series Converged Broadband Router 37
Power System Figure 22: DC Power Module
What is a Cisco cBR Series Converged Broadband Router
1 Handle
2 Screw
Table 24: Physical Specifications of the Power Module
Unit AC Power Module Depth Width Height Maximum weight DC Power Module Depth Width Height Maximum weight
Value
16.94 in (43.02 cm) 4 in (10.16 cm) 1.6 in (4.06 cm) 6 lb (2.72 kg)
16.94 in (43.02 cm) 4 in (10.16 cm) 1.6 in (4.06 cm) 6 lb (2.72 kg)
Both AC and DC Power Modules have the following LEDs: · Input power LED–Power input status LED · Output power LED–Power output status LED · Fault LED–Fault status LED
What is a Cisco cBR Series Converged Broadband Router 38
What is a Cisco cBR Series Converged Broadband Router
Fan Module
Fan Module
The Cisco cBR-8 router has multiple modular Fan Modules installed in the rear
to supply cooling air and have five Fan Module bays in the rear of the
chassis. The bays are numbered from P10 to P14.
Figure 23: Fan Module
1 Product Identifier (PID) 2 Front Grille Panel 3 Front Fan 4 LEDs
5 Control Panel 6 Rear Fan 7 PID label
—
Each Fan Module has two fans and a control board. The fans in each Fan Module
are synchronized and operate at variable speeds as set by the Supervisor. Fan
speeds are determined based on ambient temperature and pressure. When the
chassis boots up, the operating speed of the fans is set to the default number
of revolutions per minute (RPM) in unsupervised mode. The multi Fan Module
cooling architecture permits only one fan failure at any time in any given Fan
Module during normal operational conditions. All the remaining fans are
capable of changing to full speed operation to compensate for the failed fan
or module.
Each fan bay has one hinged rear door and one sliding side door which close
when a Fan Module is removed for replacement. This prevents re-circulation of
air which could lead to the system overheating. The multi cooling architecture
permits only one fan failure at any time in any given during normal
operational conditions.
What is a Cisco cBR Series Converged Broadband Router 39
Cooling System of the Cisco cBR Chassis
What is a Cisco cBR Series Converged Broadband Router
All the remaining fans are capable of changing to full speed operation to compensate for the failed fan or module.
Warning Ensure that all Fan Module bays have functioning Fan Modules. If a Fan Module is removed, replace it with a functioning Fan Module within one minute of the removal in order to avoid critical thermal alarms relating to overheating of individual components.
Table 25: Physical Specifications of the Fan Module
Unit Depth Width Height Weight
Value 8.40 in (21.34 cm) 5.20 in (13.20 cm) 3.50 in (8.89 cm) 4 lbs (1.81 kg)
The faceplate of the Fan Module has the following LEDs:
LED
Description
STATUS 1
Status of the rear fan that faces inside the chassis.
STATUS 2
Status of the front fan that faces outside the chassis.
RPLC
Failure and replacement status of the Fan Module.
Cooling System of the Cisco cBR Chassis
The Fan Modules in the Cisco cBR chassis are controlled by the Supervisor
Card. Until the Supervisor Card boots up, the fans spin at default speed of
11000 RPM. After Supervisor Card boot-up, the Supervisor Card controls the fan
speeds, based on the temperature of the air entering the chassis and the
barometric pressure reported by the sensors in the Fan Modules.
Failure Responses and Fan Speed Variations
The fan module will change speed based on the following conditions:
· When communication with the Supervisor Card is lost, both the fans in the
Fan Module are set the 11,000 RPM default speed mode until communication is
established. If the fans were running above 11,000 RPM default when
communication was lost, the fans continue to operate at the elevated speeds
until they are power cycled.
· If a fan is considered to have failed if it operates at +/- 1000rpm from the
set point. All fans are elevated in speed based on facility air inlet
temperature to the Supervisor Card as safety measure, by a temperature sensor
on the Supervisor Card. The front panel LED of the Fan Module indicates an
amber color LED. If there is an indication of a fan failure the Supervisor
Card sets all the fan modules to a higher RPM value based on the inlet
temperature on the Supervisor Card. The Supervisor Card sets the following
values:
What is a Cisco cBR Series Converged Broadband Router 40
What is a Cisco cBR Series Converged Broadband Router
Air Filter
1. 13,000RPM (194CFM) for T30C
2. 14,500RPM (218 CFM) for 30<T 40C
3. 16,000RPM (239 CFM) for T>40C
If there are more than 2 fan failures, the speed of the remaining fans
automatically default to 16,000 RPM. · A fan operating at speeds between 301
and 999 RPM from the set point, is considered a minor fan alarm. The fan
speeds are not elevated in case of a minor alarm. The Fan Module amber LED is
illuminated. · When the chassis is booted and a fan is missing or removed the
Supervisor Card sets all the other operational fans to 16,000 RPM. The chassis
will not boot with a missing Fan Module. When a working Fan Module is replaced
and all the other Fan Modules are working correctly the Supervisor Card will
return all the fans to their normal operational speed. When a Fan Module is
initially removed the Supervisor Card sets all the remaining fans to run at
13,000 RPM for 10 seconds, 14,500 RPM for 30 seconds, ramping to 15,000RPM for
the next 30 seconds and then ramping to 16,000RPM until all the Fan Modules
are again shown present.
Note Variations in speeds occur to regulate the internal component temperatures. Such speed variations are normal, in the absence of any alarms. For more details, see Monitoring the Fan Modules.
Air Filter
The air filter is a field replaceable unit on the Supervisor and RF line cards. It removes dust in the air that is drawn into the router by the cooling fans. We recommend that you examine the air filter at least once a month or more often if required. Do not clean and re-use air filters. They must be replaced when they are clogged or worn out.
Note You can remove and install an air filter when the Cisco cBR router is
powered on and working.
Cisco IOS-XE Software
The Cisco cBR Series Converged Broadband Router (Cisco cBR) runs the Cisco
IOS-XE software, which is stored on the Type II PCMCIA flash memory disks
stored in the two PCMCIA slots in the primary route processor module. A PCMCIA
flash memory disk in either slot can store a Cisco software image or
configuration file. In addition to the flash memory disks, each route
processor module contains onboard flash memory that is used to store a boot
loader. The loader executes following a system reset to reload and execute the
Cisco IOS-XE software on the flash memory disks.
The route processor module also stores the system configuration in the onboard
flash memory. The configuration information read from the flash memory is
buffered in operational memory following initialization, and is written to the
flash memory device when the configuration is saved. Each line card also
contains onboard flash memory that is used to store a boot loader, similar in
function to that used on the route processor module. However, the line card
loader executes following a system reset, line card reset, or line card
insertion to reload and execute any code that must run on the line card.
Software images may also be stored on an external TFTP
What is a Cisco cBR Series Converged Broadband Router 41
NEBS Level 3 Compliance
What is a Cisco cBR Series Converged Broadband Router
server. If the Cisco cBR is so configured, it then downloads the proper image from the TFTP server and executes it.
NEBS Level 3 Compliance
The Cisco cBR is designed to meet Network Equipment Building System (NEBS)
Level 3 compliance.
How and What to Order
Ordering Information
Table 26: Ordering Information for Cisco cBR-8 Router
Product Description
Part Number
Cisco cBR-8 Converged Cable Access Chassis
cBR-8 CCAP Chassis
CBR-8-CCAP-CHASS
AC Power Module
CBR-AC-PS
AC FPEM
CBR-PEM-AC-6M
AC Power Cassette Module
CBR-AC-PWR-TRAY
DC Power Module
CBR-DC-PS
DC FPEM
CBR-PEM-DC-6M
DC Power Cassette Module
CBR-DC-PWR-TRAY
Power Module Blanks (for empty Power Module bays) CBR-PS-BLANK
Fan Module
CBR-FAN-ASSEMBLY
Chassis Installation Handle (optional)
CBR-CHASSI-HANDLE=
Table 27: Ordering Information for Cisco cBR-8 Router Supervisor
Product Description
Part Number
Cisco cBR-8 Supervisor Modules
Supervisor for cBR series -250G
CBR-SUP-250G
Supervisor for cBR series -250G, SPARE
CBR-SUP-250G=
Supervisor with 200G forwarding capability as well CBR-CCAP-SUP-160G as a robust and powerful control plane complex. It ships with 48 GB of memory.
What is a Cisco cBR Series Converged Broadband Router 42
What is a Cisco cBR Series Converged Broadband Router
How and What to Order
Product Description
Part Number
Supervisor with 60G forwarding capability. It does CBR-CCAP-SUP-60G not have the DC board. It ships with 48 GB of memory.
Supervisor 250 PIC, 2x100GE, 10GE with breakout CBR-2X100G-PIC cables
Supervisor 250 PIC, 2x100GE, 10GE with breakout CBR-2X100G-PIC= cables, SPARE
The Supervisor PIC includes WAN backhaul connectivity options.
CBR-SUP-8X10G-PIC
Bundle PID for the 8x10G Supervisor PIC.
CBR-8X10G-PIC-BUN
SFP+
SFP-10G-SR SFP-10G-LR SFP-10G-ER SFP-10G-ZR SFP-10G-LRM SFP-10G-AOC3M=
100GBASE SR4 QSFP Transceiver, MPO, 100m over QSFP-100G-SR4-S OM4 MMF
100GBASE LR4 QSFP Transceiver, LC, 10km over QSFP-100G-LR4-S SMF
100GBASE QSFP Transceiver, 40 km reach over QSFP-100G-ER4L-S SMF, Duplex LC
40GBASE-SR4 QSFP Transceiver Module with MPO QSFP-40G-SR4 Connector
QSFP 4x10G Transceiver Module, SM MPO, 10KM, QSFP-4X10G-LR-S Enterprise-Class
100GBASE CWDM4 Lite QSFP Transceiver, 2km QSFP-100G-SM-SR over SMF, 10-60C
Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical QSFP-4X10G-AOC5M breakout Cable, 5-meter
Blank for an empty Supervisor slot
CBR-SUP-BLANK
Blank for an empty Supervisor PIC slot
CBR-SUP-PIC-BLANK
Air filter for the Supervisor
CBR-SUP-FILTER=
What is a Cisco cBR Series Converged Broadband Router 43
How and What to Order
What is a Cisco cBR Series Converged Broadband Router
Table 28: Ordering Information for Cisco cBR-8 Router Interface and Modules
Product Description
Part Number
Cisco cBR-8 CCAP line cards
The cBR CCAP line card includes two downstream CBR-LC-8D30-16U30 DOCSIS 3.0 modules as well as one upstream DOCSIS 3.0 Module. The line card can be upgraded to DOCSIS 3.1 on both downstream and upstream.
The cBR CCAP line card with one Downstream D3.1 CBR-LC-4D31-16U30 module and one Upstream D3.0 module.
The cBR CCAP line card with two Downstream D3.1 CBR-LC-8D31-16U30 modules and one Upstream D3.0 module
The cBR CCAP line card with one Downstream D3.1 CBR-LC-4D31-16U31 module and one Upstream D3.1 module.
The cBR CCAP line card with two Downstream D3.1 CBR-LC-8D31-16U31 modules and one Upstream D3.1 module.
The cBR CCAP line card with no Downstream or CBR-CCAP-LC-40G-R Upstream modules.
The cBR CCAP second generation Remote PHY Line CBR-CCAP-LC-G2-R Card.
cBR CCAP RF Through PIC (Connectivity to the RF CBR-RF-PIC Plant)
cBR CCAP Protect PIC (for N+1 redundancy)
CBR-RF-PROT-PIC
cBR CCAP Digital Through PIC
cBR-DPIC-8X10G
cBR-8 2x100G Digital Physical Interface Card
cBR-DPIC-2X100G
cBR RF cable bundle (3 meters)
CBR-CABLE-8X16
Blank for an empty line card slot
CBR-LC-BLANK
Blank for an empty line card PIC slot
CBR-LC-PIC-BLANK
Downstream D3.0 module Downstream D3.1 module
CBR-D30-DS-MOD CBR-D31-DS-MOD
Upstream D3.0 module Upstream D3.1 module
CBR-D30-US-MOD CBR-D31-US-MOD
Air filter for the cBR CCAP line card
CBR-LC-FILTER=
What is a Cisco cBR Series Converged Broadband Router 44
What is a Cisco cBR Series Converged Broadband Router
How and What to Order
Table 29: Ordering Information for Cisco Remote PHY Device
Product Description
URL
Cisco 1×2 RPD
htp:/www.cisco.com/c/en/us/products/colateral/video/cbr-series-converged- broadband-routers/datasheet-c78-738696.html
Cisco GS7000 1218-MHz 4-Port Fiber Deep Node htp:/www.cisco.com/c/en/us/products/colateral/video/gs7000-node/datasheet-c78-737266.html
Cisco Smart PHY 300 and 600 Shelves Cisco Remote PHY Shelf 7200
https://www.cisco.com/c/en/us/products/collateral/ video/cbr-series-converged-
broadband-routers/ datasheet-c78-739789.html
https://www.cisco.com/c/en/us/products/collateral/ video/cbr-series-converged-
broadband-routers/ datasheet-c78-741697.html
License Information
Table 30: License Information
Product Description
Part Number
Software Licenses For Cisco cBR-8 Supervisor Modules
10G WAN license
CBR-SUP-10G-LIC
100G WAN License
CBR-SUP-100G-LIC
Software Licenses For Cisco cBR-8 RF Line Cards
DOCSIS 3.0 Downstream License
CBR-D30-DS-LIC
DOCSIS 3.0 Upstream License
CBR-D30-US-LIC
Line Card Redundancy Feature License
CBR-LCRED-LIC
DOCSIS 3.1 Upstream Exclusive License
CBR-D31-US-LIC
Software Licenses for Cisco cBR-8 Video
VOD/SDV Downstream Video QAM License
CBR-VIDEO-LIC
VOD/SDV Replicated QAM License
CBR-VIDEO-RPL-LIC
VOD PowerKEY QAM Encryption License
CBR-VODPKY-LIC
VOD PME QAM Encryption License
CBR-VODPME-LIC
How to Order To place an order, visit the Cisco Ordering Home Page.
What is a Cisco cBR Series Converged Broadband Router 45
How and What to Order
What is a Cisco cBR Series Converged Broadband Router
What is a Cisco cBR Series Converged Broadband Router 46