Moxa Technologies ETHERDEVICE EDS-305 Manual

MOXA EtherDevice Switch
EDS-308/305 Hardware Installation Guide
Fourth Edition, September 2004
Moxa Networking Co., Ltd.
Tel: [phone]
Fax: [phone]
www.moxa.com
[email protected] (Worldwide)
[e-mail] (The Americas)
P/N: 18020030003

—1 —
Overview
The MOXA EtherDevice™ Smart Switches, EDS-308/305 Series, are 8- and 5- port Ethernet
Switches that provide an economical solution for your Ethernet connections, and the built-in smart
alarm function helps system maintainers monitor the health of your Ethernet network.
These products have a wide operating temperature range, from -40 to 75°C, and are designed to
withstand a high degree of vibration and shock. The rugged hardware design makes EDS-308/305
Series perfect for ensuring that your Ethernet equipment can withstand critical industrial
applications, such as in hazardous locations (Class 1 Division 2/ Zone 2), and complies with FCC,
TÜV, UL, and CE Standards.
NOTE Throughout this Hardware Installation Guide, we use EDS as an abbreviation for MOXA
EtherDevice Switch:
EDS = MOXA EtherDevice Switch
Package Checklist
MOXA EtherDevice Switch is shipped with the following items. If any of these items is missing
or damaged, please contact your customer service representative for assistance.
!MOXA EtherDevice™ Switch
!Hardware Installation Guide
!MOXA Product Warranty booklet
!Protective caps for unused ports
Features
High Performance Network Switching Technology
!10/100BaseT(X) (RJ45), 100BaseFX (SC type, Multi/Single mode
!IEEE 802.3/802.3u/802.3x
!Store and Forward switching process type, 1024 address entries
!10/100M, Full/Half-Duplex, MDI/MDIX auto-sensing
Industrial Grade Reliablity
!Power failure, port break alarm by relay output
!Redundant dual DC power inputs
Rugged Design
!Operating temperature ranges from 0 to 60℃, or extended operating temperature from -40 to
75°C for (-T) models
!IP 30, rugged high-strength case
!DIN-Rail or panel mounting ability

—2 —
Panel Layout of EDS-305 Series
EDS-305
Front Panel View
5
6
7
8
9
10
11
2
EDS-305-M-SC
Front Panel View
12
13
EDS-305-S-SC
Front Panel View
12
13
V1 V2 INPUTS: 24 VDC
PWR2
V2+
V2-
V1-
V1+
12345
ON DIP
PORT ALARM
FAULT
PWR1
Top Panel View
1
2
3
4
1
Rear Panel View
2
15
14
14
1. Grounding screw
2. Terminal block for power input P1/P2 and relay output
3. Heat dissipation orifices
4. DIP switches
5. Power input P1 LED
6. Power input P2 LED
7. Fault LED
8. 10/100BaseT(X) Port
9. TP port’s 100 Mbps LED
10. TP port’s 10 Mbps LED
11. Model Name
12. 100BaseFX Port
13. FX port’s 100 Mbps LED
14. Screw hole for wall mounting kit
15. DIN-Rail Kit

—3 —
Panel Layout of EDS-308 Series
EDS-308
Front Panel View
5
6
7
8
9
10
11
2
EDS-308-SS-SC
Front Panel View
12
EDS-308-M-SC
Front Panel View
12
13
5
6
7
13
V1 V2 INPUTS: 24 VDC
PWR2
V2+
V2-
V1-
V1+
FAULT
PWR1
12345678
ON DIP
PORT ALARM
Top Panel View
1
2
3
4
Rear Panel View
1
2
15
14
14
NOTE: The appearance of EDS-308-S-SC is identical to
EDS-308-M-SC, and the appearance of EDS-308-MM-SC is
identical to EDS-308-SS-SC.
1. Grounding screw
2. Terminal block for power input P1/P2 and relay output
3. Heat dissipation orifices
4. DIP switches
5. Power input P1 LED
6. Power input P2 LED
7. Fault LED
8. 10/100BaseT(X) Port
9. TP port’s 100 Mbps LED
10. TP port’s 10 Mbps LED
11. Model Name
12. 100BaseFX Port
13. FX port’s 100 Mbps LED
14. Screw hole for wall mounting kit
15. DIN-Rail Kit

—4 —
Mounting Dimensions (unit = mm)
Side View
135.00
30.00
9.50 54.00
Back ViewFront View
10.65 10.65
30.50
++
9.75
13.90
5
10
10
26
6
Panel Mount Kit
135.00
13.10
15.10
++
25.40 13.90
18.20
25.7123.15
7.75
30.50
7.75
++
++
+
+
++
+
+
3.50
6.00
3.50
6.00
39.3746.77
++
++
+
+
++
+
+
131813

—5 —
DIN-Rail Mounting
The aluminum DIN-Rail attachment plate should already be fixed to the back panel of EDS when
you take it out of the box. If you need to reattach the DIN-Rail attachment plate to EDS, make sure
the stiff metal spring is situated towards the top, as shown in the figures below.
STEP 1:
Insert the top of the DIN-Rail into the
slot just below the stiff metal spring.
STEP 2:
The DIN-Rail attachment unit will
snap into place as shown below.
metal
spring
DIN-Rail
metal
spring
DIN-Rail
To remove MOXA EtherDevice Switch from the DIN-Rail, simply reverse Steps 1 and 2 above.

—6 —
Wall Mounting (OPTIONAL)
For some applications, you will find it convenient to mount MOXA EtherDevice Switch on the
wall, as illustrated below.
STEP 1:
Remove the aluminum DIN-Rail attachment plate from MOXA EtherDevice Switch’s rear panel,
and then attach the wall mount plates, as shown in the diagram below.
⇒
top
plate
bottom
plate
STEP 2:
Mounting MOXA EtherDevice Switch on the wall requires 4 screws. Use the
Switch, with wall mount plates attached, as a guide to mark the correct
locations of the 4 screws. 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.
6.0 mm
3.5 mm
STEP 3: Once the screws are fixed in the wall, insert the four screw heads through the large parts
of the keyhole-shaped apertures, and then slide MOXA EtherDevice Switch downwards,
as indicated below. Tighten the four screws for added stability.
⇒

—7 —
Wiring Requirements
WARNING
Do not disconnect modules or wires unless the power supply has been switched off or the area is known
to be non-hazardous.
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
Substitution of components may impair suitability for Class
I, Division 2 and Zone 2.
These devices must be supplied by a SELV source as defined in the Low Voltage Directive
73/23/EEC and 93/68/EEC.
WARNING
This equipment has been evaluated as EEx nC IIC T4 equipment under DEMKO Certificate No.
03 ATEX 0324537U. Each module is marked II 3G and is suitable for use in Zone 2
Explosive Atmospheres. The device must be installed in a minimum IP 54 enclosure as defined in
IEC 60529 and EN 60529.
ATTENTION
This unit is a built-in type. When the unit is installed in another piece of equipment, the equipment
enclosing the unit must comply with fire enclosure regulation IEC 60950/EN60950 (or similar
regulation).
ATTENTION
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.

—8 —
Grounding 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.
ATTENTION
This product is intended to be mounted to a well-grounded mounting surface, such as a metal
panel.
Wiring the Alarm Contact
The Alarm Contact consists of the two middle contacts of the terminal block on EDS’s top panel.
You may refer to the next section for detailed instructions on how to connect the wires to the
terminal block connector, and how to attach the terminal block connector to the terminal block
receptor.
In this section, we explain the meaning of the two contacts used to connect the Alarm Contact.
FAULT
FAULT
Top View
Front View
FAULT: The two middle contacts of the 6-contact
terminal block connector are used to detect both
power faults and port faults. The two wires
attached to the Fault contacts form an open circuit
when:
1. EDS has lost power from one of the DC power
inputs.
OR
2. One of the ports for which the corresponding
PORT ALARM DIP Switch is set to ON is not
properly connected.
If neither of these two conditions is satisfied, the
Fault circuit will be closed.

—9 —
Wiring the Redundant Power Inputs
The top two contacts and the bottom two contacts of the 6-contact terminal block connector on
EDS’s top panel are used for EDS’s two DC inputs. Top and front views of one of the terminal
block connectors are shown here.
Top View
Front View
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 EDS’s top panel.
ATTENTION
Before connecting EDS to the DC power inputs, make sure the DC power source voltage is stable.

—10 —
Communication Connections
EDS-308 models have 6, 7, or 8 10/100BaseT(X) Ethernet ports, and 2, 1, or 0 (zero) 100BaseFX
(SC-type connector) fiber ports. EDS-305 models have 4 or 5 10/100BaseT(X) Ethernet ports, and
1 or 0 (zero) 100 BaseFX (SC-type connector) fiber ports.
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) ports located on EDS’s front panel are used to connect to Ethernet-enabled
devices.
Below we show pinouts for both MDI (NIC-type) ports and MDI-X (HUB/Switch-type) ports, and
also show cable wiring diagrams for straight-through and cross-over Ethernet cables.
MDI Port Pinouts MDI-X Port Pinouts 8-pin RJ45
Pin Si
g
nal Pin Si
g
nal
1 Tx+ 1Rx+
2 Tx- 2Rx-
3 Rx+ 3Tx+
6 Rx- 6 Tx-
RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring
Straight-Through Cable
RJ45 Plug Pin 1
Switch Port
RJ45
Connector
RJ45
Connecto
r
Tx+
Tx-
Rx+
Rx-
NIC Port
Cable Wiring
3 3
6 6
1 1
2 2
Rx+
Rx-
Tx+
Tx-
RJ45 (8-pin) to RJ45 (8-pin) Cross-Over Cable Wiring
Cross-Over Cable
RJ45 Plug Pin 1
Switch Port
(NIC Port)
RJ45
Connector
RJ45
Connector
Tx+
Tx-
Rx+
Rx-
(Rx+)
(Rx-)
(Tx+)
(Tx-)
(Tx+)
(Tx-)
(Rx+)
(Rx-)
Switch Port
(NIC Port)
Cable Wiring
3 3
6 6
1 1
2 2
Rx+
Rx-
Tx+
Tx-
1 8

—11 —
100BaseFX Ethernet Port Connection
The concept behind the SC port and cable is quite straightforward. Suppose you are connecting
devices I and II. Contrary 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
make your own cable, we suggest labeling the two sides of the same line with the same letter
(A-to-A and B-to-B, as shown below, or A1-to-A2 and B1-to-B2).
SC-Port Pinouts SC-Port to SC-Port Cable Wiring
Tx
Rx
AA
BB
Cable Wiring
A A
B B
ATTENTION
This is a Class 1 Laser/LED product. To avoid causing serious damage to your eyes, do not stare
directly into the Laser Beam.
Redundant Power Inputs
Both power inputs can be connected simultaneously to live DC power sources. If one power
source fails, the other live source acts as a backup, and automatically supplies all of MOXA
EtherDevice Switch’s power needs.
Alarm Contact
MOXA EtherDevice Switch has one Alarm Contact located on the top panel. For detailed
instructions on how to connect the Alarm Contact power wires to the two middle contacts of the
6-contact terminal block connector, see the Wiring the Alarm Contact section above. A typical
scenario would be to connect the Fault circuit to a warning light located in the control room. The
light can be set up to switch on when a fault is detected.
The Alarm Contact has two terminals that form a Fault circuit for connecting to an alarm system.
The two wires attached to the Fault contacts form an open circuit when (1) EDS has lost power
from one of the DC power inputs, or (2) one of the ports for which the corresponding PORT
ALARM DIP Switch is set to ON is not properly connected.
If neither of these two conditions occurs, the Fault circuit will be closed.

—12 —
DIP Switch Settings
EDS-308 Series DIP Switches EDS-305 Series DIP Switches
12345678
ON DIP
12345
ON DIP
ON: Enables the corresponding PORT Alarm. If the port’s link fails, the relay will form an open
circuit and the fault LED will light up.
Off: Disables the corresponding PORT Alarm. The relay will form a closed circuit and the Fault
LED will never light up.
LED Indicators
The front panel of MOXA EtherDevice Switch contains several LED indicators. The function of
each LED is described in the table below.
LED Color State Description
On Power is being supplied to power input P1
P1 AMBER Off Power is not being supplied to power input P1
On Power is being supplied to power input P2
P2 AMBER
Off Power is not being supplied to power input P2
On When the corresponding PORT alarm is
enabled, and the port’s link is inactive.
Fault RED
Off
When the corresponding PORT alarm is
enabled and the port’s link is active, or when the
corresponding PORT alarm is disabled.
On TP port’s 10 Mbps link is active
Blinking Data is being transmitted at 10 Mbps
10M GREEN
Off TP Port’s 10 Mbps link is inactive
On TP port’s 100 Mbps link is active
Blinking Data is being transmitted at 100 Mbps
100M (TP) GREEN
Off 100BaseTX Port’s link is inactive
On FX port’s 100 Mbps is active
Blinking Data is being transmitted at 100 Mbps
100M (FX) GREEN
Off 100BaseFX port is inactive

—13 —
Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect MOXA EtherDevice Switch’s
10/100BaseTX ports to any kind of Ethernet device, without needing to pay attention to the type of
Ethernet cable being used for the connection. This means that you can use either a straight-through
cable or cross-over cable to connect EDS to Ethernet devices.
Fiber Ports
MOXA EtherDevice Switch’s fiber switched ports operate at a fixed 100 Mbps speed and
full-duplex mode to provide the best performance. The fiber ports are factory-built as either a
multi-mode or single-mode SC connector. Consequently, you should use fiber cables that have SC
connectors at both ends. When plugging the connector into the port, make sure the slider guide is
positioned to the right side so that it fits snuggly into the port.
slider
slider guide
slider ridges
The 100 Mbps fiber ports are switched ports, and perform as a domain, providing a high
bandwidth backbone connection that supports long fiber cable distances (up to 2 km for
multi-mode, and 15 km for single-mode) for installation versatility.
Dual Speed Functionality and Switching
MOXA EtherDevice Switch’s 10/100 Mbps switched RJ45 port auto negotiates with the connected
device for the fastest data transmission rate supported by both devices. All models of MOXA
EtherDevice Switch are plug-and-play devices, so that software configuration is not required at
installation, or during maintenance. The half/full duplex mode for the switched RJ45 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 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.
MOXA EtherDevice Switch 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
MOXA EtherDevice Switch has an address table that can hold up to 1K 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, MOXA EtherDevice Switch

—14 —
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
All of MOXA EtherDevice Switch’s RJ45 Ethernet ports independently support auto-negotiation
for speeds in the 10BaseT and 100BaseTX modes, with operation according to the IEEE 802.3u
standard. This means that some nodes could be operating at 10 Mbps, while at the same time, other
nodes are operating at 100 Mbps.
Auto-negotiation takes place when an RJ45 cable connection is made, and then each time a LINK
is enabled. MOXA EtherDevice Switch advertises its capability for using either 10 Mbps or 100
Mbps transmission speeds, with the device at the other end of the cable expected to similarly
advertise. Depending on what type of device is connected, this will result in agreement to operate
at a speed of either 10 Mbps or 100 Mbps.
If a MOXA EtherDevice Switch 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 802.3u standard.
Specifications
Technology
Standards IEEE802.3, 802.3u, 802.3x
Forward and Filtering Rate 148810 pps
Packet Buffer Memory 256 KB
Processing Type Store and For-ward, with IEEE802.3x full duplex, non-blocking
flow control
Address Table Size 1K uni-cast addresses
Latency Less than 5 µs
Interface
RJ45 Ports 10/100BaseT(X) auto negotiation speed, F/H duplex mode, and
auto MDI/MDI-X connection
Fiber Ports 100BaseFX ports (SC connector)
LED Indicators Power, Faults, ACT, LNK, 10/100
DIP Switch Port break alarm mask
Alarm Contact One relay output with current carrying capacity of 1A @ 24 VDC
Optical Fiber
Distance Single mode fiber for 15 km,
Multi mode fiber for 2 km
Wavelength 1310 nm
Min. TX Output -15 dBm (Single), -20 dBm (Multi)
Max. TX Output -6 dBm (Single), -14 dBm (Multi)
Sensitivity -36 to -32 dBm (Single), -34 to -30 dBm (Multi)

—15 —
Power
Input Voltage 12 to 48 VDC, redundant inputs
Input Current @ 24VDC 0.25 A (EDS-305, EDS-305-M, EDS-305-S, EDS-308)
0.35 A (EDS-308-M, EDS-308-S, EDS-308-MM, EDS-308-SS)
Connection Removable Terminal Block
Overload Current Protection 1.1 A (EDS-305, EDS-305-M, EDS-305-S, EDS-308) 1.6 A
(EDS-308-M, EDS-308-S, EDS-308-MM, EDS-308-SS)
Reverse Polarity Protection Present
Mechanical
Casing IP30 protection, aluminum case
Dimensions 53.6 x 135 x 105 mm (W x H x D)
Weight 0.63 kg
Installation DIN-Rail, Wall Mounting
Environmental
Operating Temperature 0 to 60oC (32 to 140oF)
-40 to 75oC (-40 to 167oF), for “-T” models
Storage Temperature -40 to 85oC (-40 to 185oF)
Ambient Relative Humidity 5 to 95% (non-condensing)
Regulatory Approvals
Safety UL60950, UL 508, CSA C22.2 No. 60950, EN60950
Hazardous Location UL/cUL Class I, Division 2, Groups A, B, C and D
ATEX Class I, Zone 2, EEx nC IIC
EMI FCC Part 15, CISPR (EN55022) class A
EMS EN61000-4-2 (ESD), Level 3
EN61000-4-3 (RS), Level 3
EN61000-4-4 (EFT), Level 3
EN61000-4-5 (Surge), Level 3
EN61000-4-6 (CS), Level 3
Shock IEC 60068-2-27
Free Fall IEC 60068-2-32
Vibration IEC 60068-2-6
WARRANTY 5 years

—16 —
MOXA Internet Services
Customer satisfaction is our number one concern, and to ensure that customers receive the full benefit of our
products, Moxa has set up on-line support services to provide technical support, driver updates, product
information, and user’s manual updates.
E-mail for technical support:
[e-mail] (Worldwide)
[e-mail] (The Americas)
Website for up to date product information:
www.moxa.com
Revision History
Document Edition Revision Date Revision Details
2nd April 17, 2004 1. Updated the edition of this manual on the title page.
2. Changed the Moxa logo on the title page.
3. Added several “Attention” messages.
4. Added one product feature:
“Operating temperature ranges from 0 to 60°C, or extended
operating temperature from –40 to 75°C for (-T) models.”
3rd July 1, 2004 1. Revised 100BaseFX for fiber optic port
4th Sept. 25, 2004 1. Updated all figures.
2. Edited content.
3. Updated operating temp. spec.