
2013 Moxa Inc. All rights reserved.
P/N: 1802004020020
IEX-402-VDSL2 Series
Hardware Installation Guide
Moxa Managed VDSL2 Ethernet Extender
First Edition, Feb 2013

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Overview
The IEX-402-VDSL2 is an industrial managed Ethernet extender for
extending up to 3 km of LAN segments over twisted-pair copper wires at
data rates of up to 100 Mbps using the VDSL2 standard. The Ethernet
extender is designed with one 10/100BaseT(X) and one DSL port.
The IEX-402-VDSL2 series is designed for use in harsh operating
environments. The DIN-rail mount, wide operating temperature range
(-40 to 75°C), and dual power input make it ideal for installation in
industrial applications.
To simplify configuration, the device will set one as CO and the other as
CPE with auto CO/CPE negotiation (factory default setting). Advanced
management and monitoring functionalities through NMS, including a
virtual panel, improve the user experience for quick troubleshooting.
Package List
The Moxa IEX-402-VDSL2 is shipped with the following items. If any of
these items are missing or damaged, please contact your customer
service representative for assistance.
• IEX-402-VDSL2 Ethernet extender
• Hardware installation guide
• CD-ROM with user’s manual, Windows utility, MXview 2.3 trial version
and NMS plug-in
• Warranty card

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IEX-402-VDSL2 Panel Layout
1. Terminal block for power input
(PWR1, PWR2)
2. Power input PWR1/PWR2 LED
3. State LED
4. Fault LED
5. 10/100BaseT(X) port
6. DSL speed/SNR LED
7. Detachable 2-contact DSL port
8. Link/ACT LED
9. TP port’s 10/100 Mbps LED
DSL port(RJ-45/RJ-11 connector)
Screw hole for wall mounting kit

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Mounting Dimensions - unit = mm (inches)
DIN Rail Mounting
The aluminum DIN rail attachment plate should already be fixed to the
back panel of the IEX-402-VDSL2 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 following figures.
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 Moxa Ethernet Extender from the DIN rail, simply reverse
steps 1 and 2.
Wall Mounting (optional)
For some applications, you will find it convenient to mount the
IEX-402-VDSL2 on the wall, as shown in the following figures.
aluminum DIN rail attachment plate from the
-402-VDSL2 rear panel, and then attach the wall mount plates as
shown in the diagram as shown below.

-402-VDSL2 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 3.5mm in
diameter, as shown in the figure at the right.
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 tighten the screws completely—leave about 2 mm to allow room
for sliding the wall mount panel between the wall and the screws.
STEP 3:
Once the screws are fixed into the wall, insert the four screw heads
through the large parts of the keyhole-shaped apertures, and then slide
the IEX-402-VDSL2 downwards, as indicated. Tighten the four screws for
added stability.
Wiring Requirement
Be sure to disconnect the power cord before installing and/or
wiring your Moxa Ethernet Extender.
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
Be sure to read and follow these important guidelines:
• 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
through the same wire conduit. To avoid interference, wires with
different signal characteristics should be routed separately.

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• 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 separate.
• When necessary, you should label the wiring to all devices in the
system.
Grounding the Ethernet Extender
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.
intended to be mounted onto a well-grounded
mounting surface, such as a metal panel.
Wiring the 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 the IEX-402-VDSL2 with power.
The two 2-contact terminal block connectors on the IEX's top panel are
used for IEX's two DC power inputs. Top and front view of the terminal
block connectors are shown here.
Step 1: Insert the negative/positive DC wires into the
V
To keep the DC wires from pulling loose, use a
-blade screwdriver to tighten the wire-clamp
screws on the front of the terminal block connector.
Insert the plastic terminal block connector
prongs into the terminal block receptor, which is located
on IEX’s top panel.
Before connecting the IEX
-402-VDSL2 to the DC power inputs,
make sure the DC power source voltage is stable.
Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect the
IEX-402-VDSL2’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 the IEX-402-VDSL2 to Ethernet
devices.
Communication Connections
IEX-402-VDSL2 models have one 10/100BaseT(x) Ethernet port, and one
DSL port.

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10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) ports located on the IEX’s front panel are used to
connect to Ethernet-enabled devices.
Next, 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.
RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring
RJ45 (8-pin) to RJ45 (8-pin) Cross-Over Cable Wiring
DSL Port Connection
The DSL port located on the IEX-402-VDSL2 has two connection options.
One is the RJ45/RJ11 connector interface (2-wire on pin 4 and pin 5), the
other is the screw detachable interface. Pinouts are illustrated below.
RJ11(RJ45 connector) DSL Port Pinouts
Wiring the 2-Contact DSL Port
The 2-contact terminal block connectors on the IEX's top panel are used
for the IEX's DSL port wiring. Top and front views of the terminal block
connectors are shown here.

Step 1: Insert the wires into the Ring/Tip terminals
Step 2: To keep the wires from pulling loose, use a small
-blade screwdriver to tighten the wire-clamp screws
on the front of the terminal block connector.
Insert the plastic terminal block connector
prongs into the terminal block receptor, which is located
on the IEX’s top panel.
RS-232 Console Port Connection
The IEX-402-VDSL2 has one RS-232 (10-pin RJ45) console port, located
on the top panel. Use either an RJ45-to-DB9 (see the cable following
wiring diagrams) to connect the IEX-402-VDSL2‘s console port to your
PC’s COM port.
You may then use console terminal software, such as Moxa PComm
Terminal Emulator, to access the IEX-402-VDSL2’S serial console.
RJ45 (10-pin) Console Port Pinouts
RJ45 (10-pin) to DB9 (F) Cable Wiring
RJ45 (10-pin) to DB25 (F) Cable Wiring
Restore Factory Defaults Button
Press and hold the Reset button for 5 seconds to load the factory default
settings. Use a pointed object, such as a straightened paper clip or
toothpick, to depress the Reset button. This will cause the STATE LED to

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blink once a second. After depressing the button for 5 continuous seconds,
the STATE LED will start to blink rapidly. This indicates that factory default
settings have been loaded and you can release the reset button.
Do NOT power off the Ethernet extender when loading default
settings.
DIP Switches Settings
The IEX-402-VDSL2 series provides 3 hardware DIP switches for
advanced configurations, including CO/CPE, SPEED/SNR, and STD/INP.
1. CO/CPE DIP Switch:
The default configuration is CO.
Designate the extender as a CO (central office) or CPE (customer
premises equipment) device.
2. SPEED/SNR DIP Switch:
The default configuration is SPEED.
Select the type of DSL connection status, SPEED or SNR, to be
displayed on the DSL SPEED/SNR LED on the front panel of the
device.
3. STD/INP DIP Switch:
The default configuration is STD.
Select STD (standard) mode or INP (impulse noise protection) mode
for the DSL connection.
STD mode: Direct data transmission with less than 2 ms latency
INP mode: Data transmission with impulse noise protection. Latency
is under 8 ms with 500μs interleave DMT.
Reboot the device after reconfiguration of CO/CPE and STD/INP
DIP switch settings.
Auto Negotiation Mode
The VDSL2 Ethernet extenders operate in pairs. One of the units needs to
be configured as a CO device and the other as a CPE device. By factory
default, IEX-402-VDSL2 is configured as a CO device.
To make configuration easier, the IEX-402-VDSL2 supports auto CO/CPE
negotiation. When both extender have the CO/CPE DIP switch set as CO
(factory default setting), auto CO/CPE negotiation will automatically
assign one device as the CO and the other device as the CPE.

On
Power is being supplied to the power input
Power is not being supplied to the power input
PWR1
Power is being supplied to the power input
PWR2
Power is not being supplied to the power input
PWR2
System has passed self-diagnostic test on
boot-up and is ready to run
1. System is undergoing the self-diagnostic
test when booting up.
2. Blinks continuously when pressing the
reset button 5 seconds to reset to factory
default.
RED
On
1. System failed the self-diagnostics test
Fault Pass Through active, link fault
on the opposite unit
Link Fault Pass Through active, link fault on
this unit
System is in the event of failure, or is under
quick inspection
System is in normal operation
The corresponding port’s link is active
The corresponding port’s data is being
transmitted
The corresponding port’s link is inactive
The corresponding port’s link is active under
STD mode
The corresponding port is auto negotiating for
the optimized speed (Blink every 1 sec)
The corresponding port’s data is being
transmitted
The corresponding port’s link is inactive
The corresponding port’s link is active under
INP mode
The corresponding port is auto negotiating for
the optimized speed (Blink every 1 sec)
The corresponding port’s data is being
transmitted
The corresponding port’s link is inactive
The IEX-402 is set as CPE
The corresponding port’s link is inactive
The corresponding port’s link is inactive

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DSL Speed/SNR LED Indicator
Asymmetric
Tx Speed(Kbps)
IEEE802.3, 802.3u, 802.3x, 802.1p,
ITU-T G.993.2
Up to 100Mbps depends on line condition
SNMPv1/v2c/v3, DHCP Client, SNTP, HTTP,
Telnet, Syslog, LLDP, Modbus/TCP, IPv6
Flow Control IEEE802.3x flow control, back pressure flow
10/100BaseT(X) auto negotiation speed, F/H
duplex mode, and auto MDI/MDI-X connection
RJ-11(RJ-45 connector) or detachable
2-contact terminal block
PWR1, PWR2, FAULT, 10/100M (TP port),
STATE, CO/CPE, LINK/ACT, DSL SPEED/SNR
Reset button, CO/CPE, SNR/SPEED,STD/INP
12/24/48 VDC (9.6 to 60 VDC)
Two removable 2-pin terminal block
Overload Current
Protection
Reverse Polarity
Protection
DIN rail, wall mount (optional kit)
-10 to 60°C (14 to 140°F);
-40 to 75°C (-40 to 167°F ) for -T models
-40 to 85°C (-40 to 185°F)
Ambient Relative
Humidity
5% to 95% (non-condensing)
Altitude Up to 2000 m, please contact Moxa for
products guaranteed to function at higher
altitudes

EMI FCC Part 15 Subpart B Class A, CISPR
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
complies with Part 15 of the FCC rules.
Operation is subject to the following conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received including
interference that may cause undesired operation.
Technical Support Contact Information
www.moxa.com/support
Moxa China (Shanghai office):
Toll