SIEMENS NRC Network Ring Card Instruction Manual
- June 11, 2024
- SIEMENS
Table of Contents
Installation Instructions
Model NRC
Network Ring Card
INTRODUCTION
The Model NRC Network Ring card from Siemens Industry, Inc. is a card that
networks multiple FireFinder-XLS/Desigo Fire Safety Modular/Cerberus PRO
Modular systems together in a Class X (Style 7) ring. The NRC can also be
configured for Class B (Style 4) operation in systems where a ring is not
required, as an alternative to the NIC-C card.
It provides communication between its host FireFinder-XLS/ Desigo Fire Safety
Modular/Cerberus PRO Modular system and other FireFinder-XLS/Desigo Fire
Safety Modular/Cerberus PRO Modular systems on an XNET network. It replaces
the NIC-C when a ring connection is needed.
The NRC can also be used to connect an NCCNT-G to the XNET network. In this
configuration, all events occurring on the FireFinder-XLS/Desigo Fire Safety
Modular/Cerberus PRO Modular network are displayed at the NCCNT-G. One NRC is
required in each FireFinder-XLS/Desigo Fire Safety Modular/Cerberus PRO
Modular system on the network. This NRC must reside in the same enclosure as
the PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3
(Cerberus PRO Modular). The NRC supervises the network to ensure proper
operation. Any faults that are detected by the NRC are reported to the
PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3
(Cerberus PRO Modular) for annun- ciation. In addition, the NRC has diagnostic
LEDs that indicate which faults have been found. The NRC performs ground fault
detection on its outgoing ring port.
Figure 1
NRC Network Ring Card
Features
The NRC isolates faults to the individual link in trouble. When wired for
Class X (Style 7), network ring communication continues unaffected.
An RJ-12 monitor jack is included for connection of XNET diagnostic tools. In
addition, RJ-45 and USB jacks are included for firmware download. These jacks
are located on the front bezel.
Class-B/Style 4 = ULC DCLB
Class-X/Style 7 = ULC DCLC
OPERATION
The NRC continuously monitors the network for activity and reports any problems to the PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO Modular). In some cases, a reset at the PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO Modular) is required to clear network troubles.
Controls and Indicators
The front panel of the NRC contains one reset switch, three LEDs, one
Monitor port, one USB port, and one Ethernet port as shown in Figure 1.
A reset switch is located on the top of the front panel. Pushing the reset
switch reinitializes the NRC.
The LEDs follow the reset switch and their functions are defined as follows:
POWER| (Green)| Normally ON. When illuminated, indicates that power for the
NRC is applied to the card.
---|---|---
CARD FAIL| (Yellow)| Normally OFF. When illuminated, indicates
that the card microprocessor has failed.
TROUBLE| (Yellow)| Normally OFF. When illuminated, indicates trouble in the
Network such as wire faults or module failure. The Trouble LED will illuminate
under the following conditions: 1. Wire faults (open or short) in either Port
1 (In) or Port 2 (Out)—See Figure 5. 2. Ground fault on outgoing port (Port
2). 3. XNET communications problems between the PMI/PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO Modular) and
the NRC.
PRE-INSTALLATION The NRC does not have a network address but it does need to be included in the Zeus configuration.
INSTALLATION
Siemens Industry, Inc.
Building Technologies Division
The NRC plugs perpendicularly into one slot in the CC-2 or CC-5 card-cage via
two 96-pin DIN connectors (only 64-pins are used) and can occupy any slot in
the card cage. (Refer to Figure 2.)
Slide the NRC card into the card guides front bezel up (lettering on the front
panel is legible) until the card cage connectors contact the motherboard
receptacles.
Verify that the card edge connectors align properly with the motherboard
receptacles. There is only one correct way to plug in the card. If it does not
align, DO NOT FORCE the card.Place thumbs on the front panel adjacent to the
captive screws and gently apply even pressure on the card until the connectors
plug firmly into the motherboard receptacles. Secure the NRC to the card
cage with the captive screws.
FIRMWARE UPGRADES
From time to time, modules used in XLS/Desigo Fire Safety Modular/Cerberus PRO
Modular systems are upgraded to improve their operation or to add to their
capabilities with new features. Firmware in the NRC is field upgradable. Refer
to the Zeus Quickstart Manual, P/N 315-033875, and Zeus Help for additional
details.
Find NRC Software Version
To check for the current version of NRC software in an installed NRC, go to
the PMI/ PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular),
FCM2041-U3
(Cerberus PRO Modular) and press the Menu button, select Report, press the
More Info button and select the Operator Interface (OI). Press the
Configuration soft key
and “Touch” Appl Rev for the Application Version. The NRC software version
will be shown with the OI software version. Refer to Figure 3 for an example
of a display.
WIRING
Remove all system power before installation, first battery then AC. (To power
up, connect the AC first, then the battery.)
All field wiring to the NRC is connected to the terminal blocks of the CC-2 or
CC-5 card cage slot in which it is installed.
To connect the field wiring:
- Loosen the screw of the terminal by turning it counterclockwise.
- Insert the wire into the side of the terminal block.
- Tighten the screw of the terminal block by turning it clockwise.
The screw terminals can accommodate one 12 – 22 AWG.
NOTES:
-
No EOLR required.
-
22 AWG min., 12 AWG max.
-
3300 feet max. per pair between NRCs. Shielded or Unshielded twisted pair with a minimum of 3 twists per ft.
Refer to Table 1 for NRC cable specifications. -
Terminate shields at one end only.
-
Power limited to NFPA 70.
-
All wires supervised.
-
Ground fault detected at 8.5K ohms or less.
TABLE 1
NRC Cable Specifications
The table below shows the minimum requirement on the cable.
Attenuation at 100KHz| 10 dB max
Attenuation at 1MHz| 30 dB max
The following cable types meet these requirements:
CAT-5E| Belden 7922A
18AWG| Belden 5320UL
NRC Class B (Style 4) Wiring
NOTES:
-
No EOLR required.
-
22 AWG min., 12 AWG max.
-
3300 feet max. per pair between NRCs. Shielded or Unshielded twisted pair with a minimum of 3 twists per ft.
Refer to Table 1 for NRC cable specifications. -
Terminate shields at one end only.
-
Power limited to NFPA 70.
-
All wires supervised.
-
Ground fault detected at
8.5K ohms or less.
In Canada, ULC S524 requires that all interconnecting data communications
links for networks be wired DCLC (style 7) except for dedicated network
communication to annunciators.
WIRING OF NRC TO FIBER MODULES FN2006 AND FN2007
See the FN2006/FN2007 Installation Instructions, P/N A6V10315048, for
wiring and fiber connections. Installation of the fiber modules in the
XLS/Desigo Fire Safety
Modular/Cerberus PRO Modular system requires one bracket, model COM-BRK, per
fiber module. The bracket is installed as described in the installation
instructions, P/N
A6V10406085.
Each bracket takes up the same space as a CC-2 card cage.
The module mounting flange of the bracket is intentionally angled. Do not Do
not Do not Do not try to Do not straighten the mounting flange.
Power B connections to the fiber module and monitoring of its trouble contacts
are not required, as the fiber modules must be installed in the same enclosure
as the power supplies that provide them power.
NRC Based XNET Connection
When an NCC, Desigo CC/Cerberus DMS, VNT, SNC, or MOSA connects to a NRC-based
XNET network of FireFinder-XLS/Desigo Fire Safety Modular/Cerberus PRO Modular
products, additional interface hardware is required. In such an installation,
the NCC, Desigo CC/Cerberus DMS, VNT, SNC, or MOSA connects to a NIC-C module,
which in turn is connected to a dedicated NRC module.
Connect an NCC, Desigo CC/Cerberus DMS, VNT, SNC, or MOSA to an XLS/Desigo
Fire Safety Modular/Cerberus PRO Modular network system (rev. PMI07.00 or
higher) using NRC network cards instead of a NIC-C as described in the
following information.
Add a separate CC-2 or CC-5 card cage to one node on the XLS/Desigo Fire
Safety Modular/Cerberus PRO Modular network system. Connect this cage to the
XLS/Desigo
Fire Safety Modular/Cerberus PRO Modular network system node using a 60-pin
ribbon cable (BCL). At the added CC-2 and CC-5 card cage, add and secure into
connector P1, an Interface Isolation Card (IIC). Refer to the installation
instructions, P/N 315-050328. Plug the other end of the 60-pin cable into the
male ribbon cable receptacle on the IIC. Insert another NRC and a NIC-C into
this isolated card cage. Do not enter these cards into the Zeus configuration
for this node or for the network system. Note that this NRC is another (second
NRC) card required for communicating with the NCC or Desigo CC/ Cerberus DMS.
This connection between the NIC and the NCC, Desigo CC/Cerberus DMS, VNT, SNC,
or MOSA must be within 20 feet in closed conduit.
Wire the NRC so that it is inserted into the XLS network ring. Refer to the
NRC Installation Instructions, P/N 315-050337. Connect the SNC to the NIC-C,
as shown in Figures 6 and 7. Connect Pair A for Style 4 and Pairs A and B for
Class X (formerly Style 7). Address the NIC-C at address 003.
Figure 7
NRC to NCC/Desigo CC/Cerberus DMS Card Cage Connections
WIRING CONFIGURATIONS
The XLS/Desigo Fire Safety Modular/Cerberus PRO Modular network can be wired
using copper wire, single-mode fiber, multi-mode fiber or a combination of the
three.
The block diagrams below show the possible configurations.
FOM = Fiber Optic Module, Model FN2006 (Single mode) or FN2007 (Multi-
mode).
ELECTRICAL RATINGS
Input Power
24V Back Plane Current| 140mA
Screw Terminal 24V Current| 0
6.2V Back Plane Current| 20mA
24V Standby Current| 145mA
CYBER SECURITY DISCLAIMER
Siemens provides a portfolio of products, solutions, systems and services that
includes security functions that support the secure operation of plants,
systems, machines and networks. In the field of Building Technologies, this
includes building automation and control, fire safety, security management as
well as physical security systems.
In order to protect plants, systems, machines and networks against cyber
threats, it is necessary to implement – and continuously maintain – a
holistic, state-of-the-art security concept. Siemens’ portfolio only forms one
element of such a concept. You are responsible for preventing unauthorized
access to your plants, systems, machines and networks which should only be
connected to an enterprise network or the internet if and to the extent such a
connection is necessary and only when appropriate
security measures (e.g. firewalls and/or network segmentation) are in place.
Additionally, Siemens’ guidance on appropriate security measures should be
taken into account. For additional information, please contact your Siemens
sales representative or visit
https://www.siemens.com/global/en/home/company/topicareas/future-
ofmanufacturing/industrial-security.html.
Siemens’ portfolio undergoes continuous development to make it more secure.
Siemens strongly recommends that updates are applied as soon as they are
available and that the latest versions are used. Use of versions that are no
longer supported, and failure to apply the latest updates may increase your
exposure to cyber threats. Siemens strongly recommends to comply with security
advisories on the latest security threats, patches and other related measures,
published, among others, under
https://www.siemens.com/cert/en/cert-security-advisories.htm.
Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
Siemens Canada, Ltd.
1577 North Service Road East
Oakville, Ontario
L6H 0H6 Canada
P/N A5Q00059298
Document ID A6V10322639_en–_d