Moxa Technologies EtherDevice EDS-208A series Manual

2014 Moxa Inc. All rights reserved.
P/N: 1802002050025
EDS-205A/208A Series
Hardware Installation Guide
Moxa EtherDevice Switch
Sixth Edition, April 2014

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Overview
The EDS-205A/208A series of industrial Ethernet switches are entry-level
industrial 5 and 8-port Ethernet switches that support IEEE 802.3, IEEE
802.3u, and IEEE 802.3x with 10/100M, full/half-duplex, and MDI/MDIX
auto-sensing.
The EDS-205A/208A series provides 12/24/48 VDC (9.6 to 60 VDC)/18 to
30 VAC redundant power inputs that can be connected simultaneously to
a live AC/DC power source. 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, and IP30 metal housing makes
them rugged enough for any harsh industrial environment.
To provide greater versatility for use with applications from different
industries, the EDS-205A/208A also allow users to enable or disable
broadcast storm protection with DIP switches on the outer panel.
The EDS-205A/208A switches can be easily installed with DIN-Rail
mounting as well as distribution boxes. The DIN-rail mounting capability
and IP30 metal housing with LED indicators make the plug-and-play
EDS-205A/208A switches reliable and easy to use.
NOTE
Throughout this Hardware Installation Guide, we use EDS as an
abbreviation f
or Moxa EtherDevice Switch:
EDS = Moxa EtherDevice Switch
ATTENTION
This device complies with part 15 of FCC Rules. Operation is
subject to the following two conditions: (1) This device may not
cause harmful interference,
and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
Package Checklist
Your EDS 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

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Panel Layout of EDS-205A/208A (Standard)
1. Grounding screw
2. Terminal block for
power input P1/P2
3. Heat dissipation orifices
4. DIP Switches
5. Power input P1 LED
6. Power input P2 LED
7. 10/100BaseT(X) Port
8. TP port’s 10/100 Mbps
LED
9. Model Name
10.
Screw hole for wall
mounting kit
11.
DIN-Rail Kit

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Panel Layout of EDS-205A-M-SC/ST
NOTE:
The appearance of
EDS
-205A-S-SC is identical
to EDS
-205A-M-SC.
1. Grounding screw
2. Terminal block for
power input P1/P2
3.
Heat dissipation orifices
4. DIP Switches
5. Power input P1 LED
6. Power input P2 LED
7. 10/100BaseT(X) Port
8. TP port’s 10/100 Mbps
LED
9. Model Name
10.
100BaseFX Port
11.
FX port’
s 100 Mbps LED
12.
Screw hole for wall
mounting kit
13.
DIN-Rail Kit

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Panel Layout of EDS-208A-M-SC/ST
NOTE:
The appearance of
EDS
-208A-S-SC is identical
to EDS
-208A-M-SC.
1. Grounding screw
2. Terminal block for
power input P1/P2
3. Heat dissipation orifices
4. DIP Switches
5. Power input P1 LED
6. Power input P2 LED
7. 10/100BaseT(X) Port
8. TP port’s 10/100 Mbps
LED
9. Model Name
10.
100BaseFX Port
11.
FX port’
s 100 Mbps LED
12.
Screw hole for wall
mounting kit
13.
DIN-Rail Kit

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Panel Layout of EDS-208A-MM-SC/ST
NOTE:
The appearance of
EDS
-208A-SS-SC
is identical
to EDS
-208A-MM-SC.
1. Grounding screw
2. Terminal block for
power input P1/P2
3. Heat dissipation orifices
4. DIP Switches
5. Power input P1 LED
6. Power input P2 LED
7. 10/100BaseT(X) Port
8. TP port’s 10/100 Mbps
LED
9. Model Name
10.
100BaseFX Port
11.
FX port’
s 100 Mbps LED
12.
Screw hole for wall
mounting kit
13.
DIN-Rail Kit

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Mounting Dimensions
EDS-205A
EDS-208A
Unit = mm (inch)

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DIN-Rail Mounting
The aluminum DIN-rail attachment plate should already be fixed to the
back panel of the EDS when you take it out of the box. If you need to
reattach the DIN-rail attachment plate, 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.
To remove the EDS from the DIN-Rail, simply reverse Steps 1 and 2
above.
Wall Mounting (optional)
For some applications, you will find it convenient to mount the
EDS-205A/208A on the wall, as shown in the following figures.
STEP 1:
Remove the aluminum
DIN
-Rail attachment plate
from
the EDS-205A/208A’s
rear panel, and then attach
the wall mount plates as
shown
in the diagram at the
right.
STEP 2: Mounting the EDS-205A/208A 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 the 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 completely—leave about 2 mm to allow room
for sliding the wall mount panel between the wall and the screws.

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STEP 3:
Once the screws are fixed on the
wall, insert the four screw heads
through the large parts of the
keyhole
-
shaped apertures, and then
slide
the EDS-205A/208A
downwards
, as indicated. Tighten
the four screws for
added stability.
ATEX Information
1. Certificate number DEMKO 10 ATEX 0909900X
2. Ambient range (-40°C ≤Tamb ≤75°C)
3. Certification string (Ex nA nC IIC T4 Gc)
4. Standards covered (EN 60079-0:2012, EN 60079-15:2010)
5. The conditions of safe usage:
•Subject devices are for use in ambient temperature -40°C
≤Tamb ≤ +75°C.
•Subject devices are to be installed in an IP54 enclosure.
•
Subject devices are for use in an area of not more than pollution
degree 2 in accordance with IEC 60664-1.
•Subject devices are to use Conductors suitable for use in an
ambient temperature of 100°C must be used for the Power
Supply Terminal.
Wiring Requirements
WARNING
Safety First!
Turn the power off before
disconnecting modules or wires. The
correct power supply voltage is listed on the product label. Check
the voltage of your power source to make sure that you are using
the correct voltage. Do
NOT use a voltage greater than what is
specified on the product
label.
These devices must be supplied by a SELV source as defined in
the Low Voltage Directive 2006/95/EC and 2004/108/EC.
WARNING
Safety First!
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.

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You should also pay attention to the following points:
•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 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 Redundant Power Inputs
The top two contacts and the bottom two contacts of the 4-contact
terminal block connector on the EDS’s top panel are used for the EDS’s
two AC/DC inputs. Top and front views of one of the terminal block
connectors are shown here.
STEP 1:
Insert the negative/positive AC
/DC wires into the
V
-/V+ terminals.
STEP 2:
To keep the AC
/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 the EtherDevice Switch to the
AC/DC power
inputs, make sure the AC/DC power source voltage is stable.