MOXA EDS-2008-EL Series Unmanaged Switches Installation Guide
- June 9, 2024
- MOXA
Table of Contents
EDS-2008-EL Series Unman aged Switches
Installation Guide
Moxa Ether Device Switch
Overview
The EDS-2008-EL/ELP Series has an 8-port combination to simplify network
expansion. There are two housing types available for the user to select
depending on the requirements of their application. The ELP has a plastic
housing and the EL has a metal housing. The compact switches provide a cost-
effective solution for your industrial Ethernet connection requirements.
The EDS-2008-EL/ELP Series provides 12/24/48 VDC (9.6 to 60 VDC) power input,
and the switches are available with a standard operating temperature range
from -10 to 60°C, or with a wide operating temperature range from -40 to 75°C
(only available for the –T models in the EL Series). The switches are rugged
enough to operate reliably in harsh industrial environments.
To provide greater versatility for use with applications from different
industries, the EDS-2008-EL/ELP Series also allows users to enable or disable
broadcast storm protection (BSP), Quality of Service (QoS) function via the
DIP switches on the top panel.
The EDS-2008-EL/ELP switches can be easily installed with DIN-rail mounting as
well as distribution boxes. The DIN-rail mounting capability and IP40 housing
with LED indicators ensure that the plug and-play EDS-2008-EL/ELP switches are
reliable and easy to use.
NOTE Throughout this Quick Installation Guide, we use EDS as an
abbreviation for Moxa Ether Device Switch:
EDS = Moxa Ether Device Switch
ATTENTION
This device complies with part 15 of FCC Rules. Operation is subject to the
following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operations.
Package Checklist
Your EDS is shipped with the following items. If any of these items are
missing or damaged, please contact your customer service representative for
assistance.
- Moxa EtherDevice™ Switch
- Quick installation guide (printed)
- Warranty card
Features
High-performance Network Switching Technology
- 10/100 BaseT(X) auto-negotiation speed, full/half-duplex mode, auto MDI/MDI-X connection, and 100 BaseFX for fiber port models.
- IEEE 802.3 for 10 BaseT, IEEE 802.3u for 100 BaseT(X).
- IEEE 802.1p for Quality of Service (QoS) traffic prioritized function.
- Store-and-forward switching process type.
Industrial-grade Reliability
- Broadcast storm protection to prevent network devices from crashing
Rugged Design
- Operating temperature range from -10 to 60°C, or extended operating temperature from -40 to 75°C (only available for the –T models in the EL Series)
- IP40, rugged high-strength case
- DIN-rail or panel mounting ability
WARNING
The power for this product is intended to be supplied by a Listed Power
Supply, with output marked LPS, and rated to deliver 12 to 48 VDC at a maximum
of 0.25 A.
The DC jack should be used with an LPS unit that is rated to deliver 12 to 48
VDC at a minimum of 1.1 A. The product should not be disassembled by operators
or service people.
Panel Layout of EDS-2008-EL/EDS-2008-ELP
- Chassis ground screw
- Terminal block for power input
- DIP switch
- Power LED
- 10/100BaseT(X) Port
- 10/100BaseT(X) Port LED
- Port number
- Model name
Panel Layout of EDS-2008-EL-M-ST/EDS-2008-EL-M-SC
- Chassis ground screw
- Terminal block for power input
- DIP switch
- Power LED
- 10/100 BaseT(X) Port
- 10/100 BaseT(X) Port LED
- Port number
- 10/100 BaseFX Multi-mode ST Port (only for ST models)
- 10/100 BaseFX Multi-mode SC Port (only for SC models)
- 10/100 BaseFX Port LED
- Model name
Mounting Dimensions
EDS-2008-EL-M-ST Series
DIN-rail Mounting
When shipped, the DIN-rail mounting kit is fixed to the back panel of the EDS.
Mount the EDS on the corrosion-free mounting rail that adheres to the EN 60715
standard.
Suggested Installation Method
STEP 1:
Insert the upper lip of the DIN-rail kit into the mounting rail.
STEP 2:
Press the device towards the mounting rail until it snaps into place.
Alternatively, you can use a screwdriver to attach to the bottom of the DIN-
rail kit and pull down.
Suggested Removal Method
STEP 1:
Pull down the latch on the DIN-rail kit with a flat-head screwdriver.
STEP 2:
Slightly pull the device forward and lift up to remove it from the mounting
rail.
ATTENTION
When installing or removing the devices, please insert a flat head screwdriver
into the latch of the holding clamp and pull the latch downward rather than
pushing it towards the DIN rail side, when removing the module from the rail.
If you want to change the position of the device on the DIN rail, please
follow the steps shown in the images above. First, remove the device using a
flat-head screwdriver and then reinstall the device in the desired position.
Please DO NOT directly move the device on the DIN rail, without uninstalling
it first.
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
Please use a flat-head screwdriver with a head size of between 4 and 6 mm for proper installation or removal.
NOTE
- The installation and the safety of any system incorporating the equipment is the responsibility of the assembler of the system.
- This is an OPEN TYPE module and should be installed in a safety enclosure with mechanical rigidity and an appropriate IP rating.
Wall Mounting (optional)
For some applications, you will find it convenient to mount EDS on the wall,
as illustrated below.
There are two options for installation: The first option is to hook the EDS DIN-rail latch on the opening of the wall mount kit (see picture above) and then mount the wall-mount kit on the wall with screws. (The other option is to perform these two steps in the other order.) The heads of the screws should be less than 6.0 mm in diameter, and the shafts should be less than 3.5 mm in diameter, as shown in the figure at the right.
NOTE Before tightening screws into the wall, make sure the screw head and
shank size are suitable by inserting the screw into one of the keyhole-shaped
apertures of the Wall Mounting Plates.
Do not screw the screws in all the way—leave about 2 mm to allow room for
sliding the wall mount panel between the wall and the screws.
Once the screws are fixed in the wall, insert the two screw heads through the
large parts of the keyhole-shaped apertures, and then slide EDS downwards, as
indicated. Tighten the two screws for added stability.
WARNING
External metal parts are hot. Take necessary precautions if it is necessary to
touch.
Wiring Requirements
WARNING
Do not disconnect modules or wires unless the power supply has been switched
off or the area is known to be nonhazardous. The devices may only be connected
to the supply voltage shown on the type plate.
The devices are designed for operation with a Safety Extra-Low Voltage. Thus,
they may only be connected to the supply voltage connections and to the signal
contact with the Safety Extra-Low Voltages (SELV) in compliance with
IEC950/EN60950/VDE0805.
WARNING
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your Moxa
EtherDevice Switch.
Calculate the maximum possible current in each power wire and common wire.
Observe all electrical codes dictating the maximum current allowable for each
wire size.
If the current goes above the maximum ratings, the wiring could overheat,
causing serious damage to your equipment.
You should also pay attention to the following items:
-
Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must cross, make sure the wires are perpendicular at the intersection point.
NOTE: Do not run signal or communications wiring and power wiring in the same wire conduit. To avoid interference, wires with different signal characteristics should be routed separately. -
You can use the type of signal transmitted through a wire to determine which wires should be kept separate. The rule of thumb is that wiring that shares similar electrical characteristics can be bundled together.
-
Keep input wiring and output wiring separated.
-
It is strongly advised that you label wiring to all devices in the system when necessary.
Grounding the Moxa EtherDevice Switch
Grounding and wire routing help limit the effects of noise due to
electromagnetic interference (EMI). Run the ground connection from the ground
screw to the grounding surface prior to connecting devices.
A 4 mm² conductor must be used when a connection to the external grounding
screw is utilized.
ATTENTION
This product is intended to be mounted to a well-grounded mounting surface,
such as a metal panel.
NOTE
When using shielded cables to connect two Ethernet devices, a ground loop may
occur if the shielding on the cables generates an additional grounding
connection path. This can cause ground current to flow through to the Ethernet
ports and damage the devices. Therefore, STP cables must only be connected to
the ground at one end. The EDS-2000-EL/ELP Series does not provide grounding
for cable shielding using metallic RJ-45 connectors. However, our
EDS-2000-EL/ELP Series has better surge and EFT protection (IEC 61000-4-4 EFT:
Signal: 2 kV, IEC 61000-4-5 Surge: Signal: 2 kV). If it is necessary to use
shielded cables, we recommend grounding the remote end of the cable.
Wiring the Power Input
The top two contacts and the bottom two contacts of the 2 or 3 contact
terminal block connector on the EDS’s top panel are used for the EDS’s two DC
inputs. Top and front views of one of the terminal block connectors are shown
here.
STEP 1:
Insert the negative/positive DC wires into the V-/V+ terminals.
STEP 2:
To keep the DC wires from pulling loose, use a small flat-blade screwdriver to
tighten the wire-clamp screws on the front of the terminal block connector.
STEP 3:
Insert the plastic terminal block connector prongs into the terminal block
receptor, which is located on the EDS’s top panel.
NOTE
The power source comes from secondary circuits. These circuits are separated
from mains circuits by a transformer in which the primary windings are
separated from the secondary windings by reinforced installation, double
installation, or a screen connected to the protective conductor terminal.
ATTENTION
Before connecting the EDS to the DC power inputs, make sure the DC power
source voltage is stable.
ATTENTION
One individual conductor in a clamping point with 28-14 AWG wire size, and a
torque value of 1.7 lb-in should be used.
ATTENTION
The cable that is connected to the field wiring terminals must be capable of
withstanding at least 105°C..
Communication Connections
The EDS-2008-EL/ELP models have 10/100BaseT(X) Ethernet ports and 100BaseFX
Ethernet ports.
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) ports located on the EDS’s front panel are used to connect
to Ethernet-enabled devices.
Below we show pin outs for both MDI (NIC-type) ports and MDI-X (HUB/Switch-
type) ports, and show cable wiring diagrams for straight through and cross-
over Ethernet cables.
10/100Base T(x) RJ45 Pin outs
MDI Port Pin outs
| Pin | Signal |
|---|---|
| 1 | Tx+ |
| 2 | Tx- |
| 3 | Rx+ |
| 6 | Rx- |
MDI-X Port Pin outs
| Pin | Signal |
|---|---|
| 1 | Rx+ |
| 2 | Rx- |
| 3 | Tx+ |
| 6 | Tx- |
8-pin RJ45
RJ45 (8-pin) to RJ45 (8-pin) Straight-through Cable Wiring
RJ45 (8-pin) to RJ45 (8-pin) Cross-over Cable Wiring
100BaseFX Ethernet Port Connection
The concept behind the SC/ST port and cable is quite straightforward. Suppose
you are connecting devices I and II. As opposed to electrical signals, optical
signals do not require a circuit in order to transmit data. Consequently, one
of the optical lines is used to transmit data from device I to device II, and
the other optical line is used transmit data from device II to device I, for
full-duplex transmission.
All you need to remember is to connect the Tx (transmit) port of device I to
the Rx (receive) port of device II, and the Rx (receive) port of device I to
the Tx (transmit) port of device II. If you are making your own cable, we
suggest labelling the two sides of the same line with the same letter (A-to-A
and B-to-B, as shown by the following illustration, or A1-to-A2 and
B1-to-B2).
ATTENTION
This is a Class 1 Laser/LED product. To prevent damage to your eyes, do not
stare directly into the laser beam.
DIP Switch Settings
| DIP Switch | Setting | Description |
|---|---|---|
| Quality of Service (QoS) | ON | Enable the Quality of Service to handle packet |
priorities in four WRR queues.
QoS priority mapping matrix in each queue
QoS 3bit priority| 7, 6| 5, 4| 3, 2| 1, 0
Queues| 3| 2| 1| 0
WRR| 8| 4| 2| 1
OFF| Disable the Quality of Service.
Broadcast Storm Protection (BSP)| ON| Enables broadcast storm protection (at a
maximum of 2048 broadcast packets per second) for each Ethernet port.
OFF| Disables the broadcast storm protection.
LED Indicators
The front panel of the Moxa EtherDevice Switch contains several LED
indicators. The function of each LED is described in the table below.
| LED | Color | State | Description |
|---|---|---|---|
| PWR (P) | Amber | On | Power is being supplied to power input PWR. |
| Off | Power is not being supplied to power input PWR. | ||
| 10M/ 100M | Green | On | When the port is active and links on 100 Mbps. |
| Blinking | When the port’s data is being transmitted at 100 Mbps. | ||
| Off | When the port is inactive or link down. | ||
| Amber | On | When the port is active and links on 10 Mbps. | |
| Blinking | When the port’s data is being transmitted at 10 Mbps. | ||
| Off | When the port is inactive or link down. |
Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect the EDS’s 10/100BaseT(X)
ports to any kind of Ethernet device, without paying attention to the type of
Ethernet cable being used for the connection. This means that you can use
either a straight-through cable or crossover cable to connect the EDS to
Ethernet devices.
Dual Speed Functionality and Switching
The EDS’s 10/100 Mbps RJ45 switch port auto negotiates with the connected
device for the fastest data transmission rate supported by both devices. The
EDS is a plug-and-play device, so software configuration is not required at
installation or during maintenance.
The half/full duplex mode for the RJ45 switched ports is user dependent and
changes (by auto-negotiation) to full or half duplex, depending on which
transmission speed is supported by the attached device.
Switching, Filtering, and Forwarding
Each time a packet arrives at one of the switched ports, a decision is made to either filter or forward the packet. Packets with source and destination addresses belonging to the same port segment will be filtered, constraining those packets to one port, and relieving the rest of the network from the need to process them. A packet with a destination address on another port segment will be forwarded to the appropriate port, and will not be sent to the other ports where it is not needed. Packets that are used in maintaining the operation of the network (such as the occasional multi-cast packet) are forwarded to all ports. The EDS operates in the store-and-forward switching mode, which eliminates bad packets and enables peak performance to be achieved when there is heavy traffic on the network.
Switching and Address Learning
The Moxa EDS has an address table that can hold up to 8,000 node addresses,
which makes it suitable for use with large networks. The address tables are
self-learning, so that as nodes are added or removed, or moved from one
segment to another, EDS automatically keeps up with new node locations. An
address-aging algorithm causes the least-used addresses to be deleted in favor
of newer, more frequently used addresses. To reset the address buffer, power
down the unit and then power it back up.
Auto-negotiation and Speed Sensing
The EDS’s RJ45 Ethernet ports independently support auto-negotiation for
transmission speeds of 10 Mbps or 100 Mbps, with operation according to the
IEEE 802.3 standard. This means that some nodes could be operating at 10 Mbps,
while at the same time, other nodes are operating at 100 Mbps.
When an RJ45 cable is connected, auto-negotiation takes place, and then each
time a LINK is enabled. The EDS advertises its capability for using 10 Mbps or
100 Mbps, transmission speeds, with the device at the other end of the cable
expected to advertise similarly. Depending on what type of device is
connected, this will result in agreement to operate at a speed of 10 Mbps or
100 Mbps.
If an EDS’s RJ45 Ethernet port is connected to a non-negotiating device, it
will default to 10 Mbps speed and half-duplex mode, as required by the IEEE
802.3 standard.
Specifications
Technology
Standards| IEEE 802.3 for 10BaseT, IEEE 802.3u for 100BaseT(X) and 100Base FX,
IEEE 802.1p for Class of Service
Flow Control| IEEE 802.3x flow control, back pressure flow control
Interface
RJ45 Ports| 10/100BaseT(X) auto negotiation speed
Fiber Ports| 100BaseFX ports (SC/ST connector ), only available for
EDS-2008-EL-M-ST/EDS-2008-EL-M-SC models
LED Indicators| PWR, 10M/100M
DIP Switch| QoS, Broadcast Storm Protection (BSP)
Switch Properties
MAC Table Size| 8 K
Packet Buffer Size| 4 Mbits
Processing Type| Store and Forward
Power
Input Voltage| 12-48 VDC inputs
Input Current (max.)| EDS-2008-EL/EDS-2008-ELP: 0.15 A
EDS-2008-EL-M-SC/EDS-2008-EL-M-ST: 0.246 A
Connection| Removable 2-contact terminal block for EL Series; Removable
3-contact terminal block for ELP Series
Overload Current Protection| Present
Reverse Polarity Protection| Present
Mechanical
Casing| IP40 protection, metal housing for EL Series; plastic housing for ELP
Series
Dimensions (W x H x D)| EDS-2008-EL/ELP:
36 x 81 x 65 mm (1.4 x 3.19 x 2.56 in) EDS-2008-EL-M-ST:
36 x 81 x 70.9 mm (1.4 x 3.19 x 2.79 in) EDS-2008-EL-M-SC:
36 x 81 x 67.9 mm (1.4 x 3.19 x 2.67 in)
Weight| EDS-2008-ELP: 90 g (0.2 lb)
EDS-2008-EL/EDS-2008-EL-M-SC/EDS-2008-EL-M- ST: 163 g (0.36 lb)
Installation| DIN-rail, Wall Mounting (optional kit)
Environmental Limits
Note: For indoor use only.
Operating Temperature| -10 to 60°C (32 to 140°F)
-40 to 75°C (-40 to 167°F) (only available for the – T models in the EL Series)
Storage Temperature| -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity| 5 to 95% (non-condensing)
Regulatory Approvals
Safety| UL 61010-2-201, EN 62368-1(LVD)
EMC| EN 55032/35, EN 61000-6-2/-6-4
EMI| FCC Part 15B, CISPR 22, 32 (EN 55032) Class A
EMS| CISPR 35 (EN 55035)
EN 61000-4-2 (ESD)
EN 61000-4-3 (RS)
EN 61000-4-4 (EFT)
EN 61000-4-5 (Surge)
EN 61000-4-6 (CS)
EN 61000-4-8 (PFMF)
---|---
Shock| IEC 60068-2-27
Free Fall| IEC 60068-2-32
Vibration| IEC 60068-2-6
Warranty| 5 years
© 2022 Moxa Inc. All rights reserved.
Technical Support Contact Information
www.moxa.com/support
Version 1.4, December 2022
P/N: 1802020080014
Documents / Resources
| MOXA
EDS-2008-EL Series Unmanaged
Switches
[pdf] Installation Guide
EDS-2008-EL Series Unmanaged Switches, EDS-2008-EL Series, Unmanaged Switches,
Switches
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