Moxa Technologies AWK-3131A-M12-RTG, AWK-3131A-SSC-RTG, AWK-3131A-RTG Quick Installation Manual

P/N: 1802031312011

*1802031312011*

AWK-3131A-RTG Series

Quick Installation Guide

Industrial IEEE 802.11n wireless AP/client

Edition 2.0, January 2019

Technical Support Contact Information

www.moxa.com/support

Moxa Americas:
Toll

-free: 1-888-669-2872

Tel:

1-714-528-6777

Fax:

1-714-528-6778

Moxa China (Shanghai office):
Toll

-free: 800-820-5036

Tel:

[phone]

Fax:

[phone]

Moxa Europe:
Tel:

[phone]

Fax:

[phone]

Moxa Asia-Pacific:
Tel:

[phone]

Fax:

[phone]

Moxa India:
Tel:

[phone]

Fax:

[phone]



2019 Moxa Inc. All rights reserved.

- 2 -

Overview

The AWK-3131A-RTG Series 3-in-1 industrial AP/client devices are
designed specifically for train-to-ground communication for trains moving
at speeds of up to 120 km/h. The AWK-3131A-RTG is compliant with
mandatory sections of the EN 50155 standard, covering operating
temperature, power input voltage, surge, ESD, and vibration, as well as
conformal coating and power insulation, making the AWK-3131A-RTG
suitable for a variety of industrial applications. Installation is easy, with
DIN-rail mounting that makes it convenient to install the AP inside
distribution boxes, and the wide operating temperature range and IP30
housing with LED indicators, make the AWK-3131A-RTG a convenient yet
reliable solution for any rolling stock application.

Package Checklist

Before installing the AWK-3131A-RTG, verify that the package contains
the following items:

• AWK-3131A-RTG wireless AP/client

• DIN-rail kit

• 2 plastic RJ45 protective cap: One for the console port and the other
for use as a backup

• 1 plastic protective cap for fiber port (AWK-3131A-SSC-RTG only)

• Cable holder with one screw

• Quick installation guide (printed)

• Warranty card

If any of these items is missing or damaged, please contact your
customer service representative for assistance.

NOTE

Antennas are not included with the product and should be
purchased separately. The AWK is certified

for 2 dBi

omni-directional antennas with QMA to RP-SMA adapters.

Installation and Configuration

Before installing the AWK-3131A-RTG, make sure that all items in the
Package Checklist are in the box. In addition, you will need access to a
notebook computer or PC equipped with an Ethernet port. The
AWK-3131A-RTG has a default IP address that you must use when
connecting to the device for the first time.

Step 1: Select the power source

The AWK-3131A-RTG can be powered by a DC power input or PoE (Power
over Ethernet). The AWK-3131A-RTG will use whichever power source
you choose.

Step 2: Connect the AWK to a notebook or PC

Since the AWK-3131A-RTG supports MDI/MDI-X auto-sensing, you can
use either a straight-through cable or crossover cable to connect the
AWK-3131A-RTG to a computer. If the LED indicator on the
AWK-3131A-RTG’s LAN port lights up, it means a connection has been
established.

- 3 -

Step 3: Set up the computer’s IP address

Update the computer’s IP address so that the computer is on the same
subnet as the AWK-3131A-RTG. Since the AWK-3131A-RTG’s default IP
address is 192.168.127.253, and the subnet mask is 255.255.255.0, you
should set the IP address of the computer to 192.168.127.xxx and subnet
mask to 255.255.255.0.

Step 4: Use the web-based manager to configure the AWK

Open your computer’s web browser and type http://192.168.127.253
in the address field to access the homepage of the web-based manager.
Before the homepage opens, you will need to enter the user name and
password. For first-time configuration, enter the default user name and
password given below and then click on the Login button:

User name: admin
Password: root

ATTENTION

For security reasons, we strongly recommend changing the
default

password. To do so, select Maintenance  Password

,

and then follow the on-screen instructions.

Step 5: Select the AWK’s operation mode

By default, the AWK-3131A-RTG’s operation mode is set to AP. You can
change the setting in Wireless Settings  Basic Wireless Settings if
you would like to use the Client mode.

NOTE

To make the change effective, click Save Configuration

or

Restart; either option saves all changes.

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Panel Layout of the AWK-3131A-M12-RTG

1. Grounding screw (M5)

2.

Terminal block for PWR1, PWR2,

relay, DI0, and DI1

3. Reset button

4. System LEDs: PWR1, PWR2,
PoE, FAULT, and STATE LEDs

5. LEDs for signal strength

6. LEDs: CLIENT, WLAN, and LAN

7. RS-232 console port

8. 10/100BaseT(X) M12 port

9. Antenna port A

10.

Antenna port B

11.

Model name

12.

Screw hole for wall-

mounting kit

13.

DIN-rail mounting kit

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Panel Layout of the AWK-3131A-SSC-RTG

1. Grounding screw (M5)

2.

Terminal block for PWR1, PWR2,

relay, DI0, and DI1

3. Reset button

4. System LEDs: PWR1, PWR2,
FAULT, and STATE LEDs

5. LEDs for signal strength

6. LEDs: CLIENT, WLAN, and

100M

7. RS-232 console port

8. 100BaseFX fiber port

9. Antenna port A

10.

Antenna port B

11.

Model name

12. Screw hole for wall mounting kit

13.

DIN-rail mounting kit

- 6 -

Mounting Dimensions (unit = mm)

AWK-3131A-M12-RTG

AWK-3131A-SSC-RTG

DIN-rail Mounting

The aluminum DIN-rail attachment plate should be fixed to the back panel
of the AWK-3131A-RTG when you take it out of the box. If you need to
reattach the DIN-rail attachment plate to the AWK-3131A-RTG, make
sure the stiff metal spring is situated towards the top, as shown in the
figures below:

- 7 -

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 AWK-3131A-RTG from the DIN rail, simply reverse the
steps 1 and 2.

Wall Mounting (Optional)

For some applications, it may be more convenient to mount the
AWK-3131A-RTG to a wall, as illustrated below.

STEP 1:

Remove the aluminum
DIN

-rail attachment plate

from the AWK

-3131A-RTG,

and then attach the wall
mount

plates with M5

screws, as shown in the
diagrams.

STEP 2:

Mounting the AWK

-3131A-RTG to a wall requires 4

screws. Use the AWK

-3131A-

RTG 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.

Do not screw the screws in all the way—leave a space of about 2 mm to
allow room for sliding the wall mount panel between the wall and the
screws.

NOTE

Test the screw head and shank size by inserting the screw into
one of the keyhole shaped apertures of the Wall Mounting Plates
before it is screwed into the wall.

- 8 -

STEP 3:

Once the screws are fixed into
the wall, insert the

four screw

heads through the large opening
of the keyhole

-shaped

apertures, and then slide the
AWK

-3131A-RTG downwards,

as indicated to the right. Tighten
the four screws for added
stability.

WARNING

•

This equipment is intended to be used in a

Restricted Access

Location, such as a dedicated computer room, with access
restricted to SERVICE PERSONNEL

or USERS who have been

instructed about the fact that the metal chassis of the
equipment is extremely hot and may cause burns.

•

Service personnel or users need

to pay special attention and

take special precautions before handling the equipment.

• Access is to be controlled through the use of a lock and key or

a security identity system, controlled by the authority
responsible for the location. Only authorized, well-trained
professionals should be allowed to access the restricted
access location.

•

External metal parts are hot!! Pay special attention or use

special protection before handling.

Wiring Requirements

WARNING

Safety First!

Be sure to disconnect the power cord before installing and/or
wiring your Moxa AWK-3131A-RTG.

WARNING

Safety First!

Calculate the maximum possible current in each power wire and
common wire. Observe all

electrical codes dictating the

maximum current allowed for each wire size.

If the curren

t goes

above the maximum rating

, the wiring could overheat, causing

serious damage to your equipment.

- 9 -

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 with similar electrical characteristics can be bundled
together.

• Keep input wiring and output wiring separate.

• It is strongly advised that you label wiring to all devices in the system
when necessary.

ATTENTION

This product is intended

to be supplied by a Listed Power Unit

marked

“Class 2” or “LPS” and rated O/P:

•

AWK-3131A-M12-RTG:

Maximum 10.5 W (12 V/0.85 A to 48 V/0.22 A), 25°C.

•

AWK-3131A-SSC-RTG:

Maximum 13 W (12 V/1.0 A to 48 V/0.27 A), 25°C.

ATTENTION

Make sure

the external power adapte

r (includes power cords and
plug assemblies) provided with the unit is certified and suitable
for use in your country.

Grounding the Moxa AWK-3131A-RTG

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.

Installations with Unstable Power Inputs

There are cases where the device has to be wired to the same power
source as other equipment. In such cases if equipment such as motors
that are connected in the circuit draw a large amount of current during
operation, the transient voltage drop could potentially cause the AWK to
become unstable.

- 10 -

Installing a DC/DC power isolator, in between the two equipment, is
recommended to isolate the transient effect and to ensure a stable power
input for the AWK.

Wiring the Redundant Power Inputs

The top two pairs of contacts of the 10-contact terminal block connector
on the AWK-3131A-RTG’s top panel are used for the AWK-3131A-RTG’s
two DC inputs. Top and front views of the terminal block connector 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 AWK-3131A-RTG’s top panel.

ATTENTION

Before connecting the

AWK-3131A-RTG

to the DC power inputs,

make sure the DC power source voltage is stable.

Wiring the Relay Contact

The AWK-3131A-RTG has one relay output, which consists of the two
contacts of the terminal block on the AWK-3131A-RTG’s top panel. Refer
to the previous 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. These relay contacts are
used to indicate user-configured events. The two wires attached to the
Relay contacts form an open circuit when a user-configured event is
triggered. If a user-configured event does not occur, the relay circuit will
be closed.

- 11 -

Wiring the Digital Inputs

The AWK-3131A-RTG has two sets of digital inputs: DI0 and DI1. Each DI
comprises two contacts of the 10-pin terminal block connector on the
AWK-3131A-RTG’s top panel. Refer to the “Wiring the Redundant Power
Inputs” 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.

Cable Holder Installation (Optional)

You can attach the cable holder to the bottom of the AWK-3131A-RTG to
keep cabling neat and avoid accidents that result from untidy cables.

STEP 1:

Screw the cable holder onto the bottom of the
AWK

-3131A-RTG.

STEP 2:

After mounting the AWK

-3131A-RTG and plugging in the LAN cable,

tighten the cable along the device and wall.

Communication Connections

100BaseFX Fiber Port Connection

The concept behind the SC port and cable is quite straightforward.
Suppose you are connecting devices 1 and 2; contrary to electrical signals,
optical signals do not need a circuit in order to transmit data.
Consequently, one of the optical lines is used to transmit data from device
1 to device 2, and the other optical line is used to transmit data from
device 2 to device 1, for full-duplex transmission. Remember to connect
the Tx (transmit) port of device 1 to the Rx (receive) port of device 2, and
vice versa.

- 12 -

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-B, as illustrated below, or
(A1-to-A1, B1-to-B2, etc.).

SC-Port Pinouts

SC-Port to SC-Port Cable Wiring

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.

10/100BaseT(X) Ethernet Port Connection

All AWK-3131A-M12-RTG have a 10/100BaseT(X) Ethernet port (4-pin
shielded M12 connector with D coding). The 10/100TX port located on the
AWK-3131A-M12-RTG’s front panel is used to connect to
Ethernet-enabled devices. Most users configure this port for Auto
MDI/MDI-X mode, in which case the port’s pinouts are adjusted
automatically depending on the type of Ethernet cable used
(straight-through or cross-over), and the type of device (NIC-type or
HUB/Switch-type) connected to the port.

Pinouts for the 10/100BaseT(X) Port

RS-232 Connection

The AWK-3131A-RTG has one RS-232 (8-pin RJ45) console port located
on the front panel. Use either an RJ45-to-DB9 or RJ45-to-DB25 cable to
connect the AWK-3131A-RTG’s console port to your PC’s COM port. You
may then use a console terminal program to access the AWK-3131A-RTG
for console configuration.

- 13 -

Console Pinouts for 10-pin or 8-pin RJ45

10-Pin

Connector

Description

8-Pin

Connector

1 – – 2 DSR

1 3 RTS

2 4 GND

3 5 TxD

4 6 RxD

5 7 DCD

6 8 CTS

7 9 DTR

8

10 – –

ATTENTION

For railway rolling stock applications,

the AWK-3131A-

RTG must
use a galvanically isolated power supply that is compliant with the
EN 50155 standard.

LED Indicators

The front panel of the Moxa AWK-3131A-RTG contains several LED
indicators. The function of each LED is described in the table below.

LED

Color

State

Description

PWR1 Green

On

Power is being supplied from power
input 1.

Off

Power is not being supplied from
power input 1.

PWR2 Green

On

Power is being supplied from power
input 2.

Off

Power is

not

being supplied from

power input 2.

PoE

(AWK-3131
A-M12-RTG

only)

Amber

On

Power is being supplied via PoE.

Off

Power is not being supplied via PoE.

FAULT Red

Blinking

(slow at

1-second

intervals)

Cannot get an IP address from the

DHCP server

Blinking

(fast at

0.5-second

intervals)

IP address conflict

Off

No errors

STATE

Green/

Red

Green

System startup is complete and the
system is in operation

Green

(blinking at

1-second

intervals)

The AWK has been located by the
Wireless Search Utility.

Red

Boot up error

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LED

Color

State

Description

SIGNAL

(5 LEDs)

Green

On

Signal level

(for Client and Client-Router

mode only)

Off

CLIENT

MODE

Green

On

The AWK is functioning in Client or

Client-Router Mode.

Off

The AWK is not functioning in Client

or Client-Router Mode.

WLAN Amber

On

WLAN is in use.

Off

WLAN is not in use.

LAN/

100M*

Green

On

100 Mbps link is active.

Blinking

Data is being transmitted at 100
Mbps.

Off

100 Mbps link is inactive.

*100M applies to the AWK-3131A-SSC-RTG model only.

Specifications

Input Current

0.6 A @ 12 VDC; 0.15 A @ 48 VDC

Input Voltage 12 to 48 VDC, redundant dual DC power

inputs or 48 VDC Power-over-Ethernet Plus

(IEEE 802.3af compliant)

Power Consumption

7.2 W

Operating Temperature

Standard Models: -25 to 60°C (-13 to 140°F)

Wide Temp. Models: -40 to 75°C (-40 to

167°F)

Storage Temperature

-40 to 85°C (-40 to 185°F)

ATTENTION

The AWK

-3131A-SCC-RTG is an industrial wireless device and

hence the antenna should be installed such that it is located at
least 10 cm away from the SC fiber port to ensure proper working
of the fiber port.

The AWK-3131A-RTG is NOT

a portable mobile
device and should be located at least 20 cm away from the human
body.
The AWK

-3131A-RTG is NOT

designed for the general public. To

establish a wireless network safely using the AWK

-3131A-

RTG, a

well-trained technician should be consulted for installation.

ATTENTI

ON

Use the antennas correctly: 2.4 GHz antennas are needed when
the AWK

-3131A-RTG operates in an IEEE 802.11b/g/n wireless

environment

. 5 GHz antennas are needed for an

IEEE 802.11a/n

environment

. Make sure your antenna is installed

in a safe area

that is covered by a lightning protection or surge arrest system.