Moxa Technologies AWK-3121-SSC-RTG, AWK-3121-SSC Quick Installation Manual

 2014 Moxa Inc. All rights reserved.

Reproduction without permission is prohibited.

P/N: 1802031210042

AWK-3121-SSC-RTG

Quick Installation Guide

Moxa AirWorks

Third Edition, May 2014

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Overview

Moxa’s AWK-3121-SSC-RTG Access Point/Client is ideal for applications
that are hard to wire, too expensive to wire, or use mobile equipment that
connects over a TCP/IP network. The AWK-3121-SSC-RTG is rated to
operate at temperatures ranging from -25 to 60°C for standard models
and -40 to 75°C for extended temperature models, and is rugged enough
for any harsh industrial environment. Installation is easy, with either
DIN-Rail mounting or distribution boxes. The DIN-Rail mounting ability,
wide operating temperature range, and IP30 housing with LED indicators
make the AWK-3121-SSC-RTG a convenient yet reliable solution for any
industrial wireless application.

Package Checklist

Moxa’s AWK-3121-SSC-RTG is shipped with the following items. If any of
these items is missing or damaged, please contact your customer service
representative for assistance.

• 1 AWK-3121-SSC-RTG

• 2 dual-band omni-directional antennas, 2 dBi, RP-SMA (male)

• 1 Quick Installation Guide

• 1 Software CD

• 1 Moxa Product Warranty Booklet

• 1 Cable Holder with a Screw

• 3 Protective Caps

NOTE

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

with 2dBi omni-directional antennas with

QMA to RP-SMA adaptors.

Installation and Configuration

Before installing the AWK-3121-SSC-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 Fiber port. The
AWK-3121-SSC-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-3121-SSC-RTG can be powered by a DC power input.

Step 2: Connect the AWK-3121-SSC-RTG to a notebook or

PC

Since the AWK-3121-SSC-RTG supports 100BaseFX, you can use either a
media converter or fiber Ethernet switch to connect the
AWK-3121-SSC-RTG to the notebook. The 100M LED on the
AWK-3121-SSC-RTG will light up when the connection is established.

- 3 -

Step 3: Set up the computer’s IP address

Set an IP address on the same subnet as the AWK-3121-SSC-RTG. Since
the AWK-3121-SSC-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

AWK-3121-SSC-RTG

Open your computer’s web browser and then type
http://192.168.127.253 in the address field to access the homepage
of the web-based management. 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 and then click on the Login
button:

User name: admin
Password: root

ATTENTION

For security reasons, we strongly

recommend changing the

password. To do so,

select Maintenance  Password

, and then

follow the on-screen instructions.

Step 5: Select the operation mode for the

AWK-3121-SSC-RTG

By default, the AWK-3121-SSC-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, you must click Save Configuration
to save the change or Restart ( Save and Restart button to apply
all changes.

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Panel Layout of the AWK-3121-SSC-RTG

1. Grounding screw

2.

Terminal block for PWR1, PWR2,

relay, DI1, and DI2

3. Reset button

4. Heat dissipation orifices

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

6. LEDs for signal strength

7. WLAN LEDs: CLIENT BRIDGE
(no function), and WLAN LEDs

8. RS-232 console port

9. 100BaseFX fiber Port

10.

MAIN antenna port

11.

AUX antenna port

12.

Model name

13.

Screw hole for wall mounting kit

14.

DIN-Rail mounting kit

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Mounting Dimensions

DIN-Rail Mounting

The aluminum DIN-Rail attachment plate should be fixed to the back
panel of the AWK-3121-SSC-RTG when you take it out of the box. If you
need to reattach the DIN-Rail attachment plate to the
AWK-3121-SSC-RTG, 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 AWK-3121-SSC-RTG from the DIN-Rail, simply reverse
Steps 1 and 2.

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Wall Mounting (optional)

For some applications, it may be more convenient to mount the
AWK-3121-SSC-RTG to a wall, as illustrated below.

STEP 1:

Remove the aluminum
DIN

-Rail attachment plate

from the
AWK

-3121-SSC-RTG, and

then attach the wall mount
plates with M3 screws, as
shown in the adjacent
diagrams.

STEP 2:

Mounting the

AWK-3121-SSC-RTG

to a wall requires 4

screws. Use the

AWK-3121-SSC-RTG

device, 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.

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

-3121-SSC-RTG

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

- 7 -

WARNING

• This equipment is intended to be used in a Restricted Access

Location, such as a dedicated computer room. Access can

only be gained by SERVICE PERSONS or by USERS who have

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

•

Service persons or users have to pay special attention and

take special precaution 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 are 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-3121-SSC-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 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 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.

- 8 -

ATTENTION

This product is intended to be supplied by a Listed Power Unit
marked

“Class 2” or “LPS” and rated O/P: 12 to 48 VDC

, minimum

6 W (12 V/0.494 A to 48V/0.121 A), 25°C.

ATTENTION

Make sure

the external power adapto

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

Grounding the Moxa AWK-3121-SSC-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.

Wiring the Redundant Power Inputs

The top two pairs of contacts of the 10-contact terminal block connector
on the AWK-3121-SSC-RTG’s top panel are used for the
AWK-3121-SSC-RTG’s two DC inputs. Top and front views of the terminal
block connector is 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-3121-SSC-RTG’s top panel.

ATTENTION

Before connecting the

AWK-3121-SSC-RTG to the DC power

inputs, make sure the DC power source voltage is stable.

- 9 -

Wiring the Relay Contact

The AWK-3121-SSC-RTG has one relay output, which consists of the two
contacts of the terminal block on the AWK-3121-SSC-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.

Wiring the Digital Inputs

The AWK-3121-SSC-RTG has two sets of digital input—DI1 and DI2. Each
DI comprises two contacts of the 10-pin terminal block connector on the
AWK-3121-SSC-RTG’s top panel. You can 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-3121-SSC-RTG.
This helps to keep cabling neat and avoid accidents that result from
untidy cables.

STEP 1:

Screw the cable holder onto the bottom of the
AWK

-3121-SSC-RTG.

STEP 2:

After mounting the

AWK-3121-SSC-RTG and plugging in the fiber

cable,

tighten the cable along the device and wall.

- 10 -

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. 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 and B1-to-B2…).

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.

RS-232 Connection

The AWK-3121-SSC-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 Moxa AWK-3121-SSC-RTG’s console port to your
PC’s COM port. You may then use a console terminal program to access
the AWK-3121-SSC-RTG for console configuration.

Console Pinouts for 10-pin or 8-pin RJ45

10-Pin

Description

8-Pin 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

-----

- 11 -

NOTE

The pin numbers for male DB9 and DB25 connectors, and hole
numbers for female DB9 and DB25 connectors are labeled on the
connector. However, the numbers are typically quite small, so
you may need to

use a magnifying glass to see the numbers

clearly.
The pin numbers for both 8

-pin and 10-

pin RJ45 connectors (and
ports) are typically not labeled on the connector (or port). Refer
to the Pinout diagram above to see how RJ45 pins are numbered.

ATTENTION

For railway rolling stock applications, AWK

-3121-SSC-RTG

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

LED Indicators

The front panel of the Moxa AWK-3121-SSC-RTG contains several LED
indicators. The function of each LED is described in the table below.

LED

Color

State

Description

Front Panel LED Indicators (System)

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.

FAULT Red

Blink

(slow)

Cannot get an IP address from the
DHCP server (interval: 1 sec)

Blink

(fast)

IP address conflict (interval: 0.5 sec)

Off

Error condition does not exist.

STATE

Green/

Red

Green

Software Ready

Green

Blink

The AWK has been located by AWK
Search Utility. (interval: 1sec)

Red

Booting error condition

SIGNAL

(5 LEDs)

Green

On

Signal level

(for Client and Client-Router mode

only)

Off

CLIENT

MODE

Green

On

AWK functions in Client and
Client-Router Mode.

Off

AWK is not in Client and

Client-Router Mode.

WLAN Amber

On

WLAN is in used

Off

WLAN is not in use

100M Green

On

SC port’s 100Mbps link is active.

Blink

Data is being transmitted at 100 Mbps

Off

SC port’s 100Mbps link is inactive.

- 12 -

Specifications

Standards:

IEEE 802.11a/b/g for Wireless LAN
IEEE 802.11i for Wireless Security
IEEE 802.3u for 100BaseFX

Spread Spectrum and Modulation (typical):

• DSSS with DBPSK, DQPSK, CCK

• OFDM with BPSK, QPSK, 16QAM, 64QAM

• 802.11b: CCK @ 11/5.5 Mbps, DQPSK @ 2 Mbps,

DBPSK @ 11 Mbps

• 802.11a/g: 64QAM @ 54/48 Mbps, 16QAM @ 36/24 Mbps,

QPSK @ 18/12 Mbps, BPSK @ 9/6 Mbps

Operating Channels (central frequency):

US:

2.412 to 2.462 GHz (11 channels)

5.18 to 5.24 GHz (4 channels)
EU:

2.412 to 2.472 GHz (13 channels)

5.18 to 5.24 GHz (4 channels)

Security:

• SSID broadcast enable/disable

• Firewall for MAC/IP/Protocol/P

ort-based filtering

• 64

-bit and 128-bit WEP encryption, WPA /WPA2-Personal and

Enterprise (IEEE 802.1X/RADIUS, TKIP and AES)

Transmission Rates:

802.11b: 1, 2, 5.5, 11

Mbps

802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps

TX Transmit Power:

802.11b:
Typ

. 23±1.5 dBm @ 1 to 11 Mbps

802.11g:

Typ. 20±1.5 dBm @ 6 to 24 Mbps, Typ. 19±1.5 dBm @ 36 Mbps, Typ.
18±1.5 dBm @ 48 Mbps, Typ. 17±1.5 dBm @ 54 Mbps

802.11a:

Typ. 18±1.5 dBm @ 6 to 24 Mbps, Typ. 16±1.5 dBm @ 36 to 48 Mbps,
Typ. 15±1.5 dBm @ 54 Mbps

RX Sensitivity:

802.11b:

-

97 dBm @ 1 Mbps, -94 dBm @ 2 Mbps, -92 dBm @ 5.5 Mbps, -

90 dBm

@ 11 Mbps

802.11g:

-

93 dBm @ 6 Mbps, -91 dBm @ 9 Mbps, -90 dBm @ 12 Mbps, -88 dBm @

18 Mbps,

-84 dBm @ 24 Mbps, -80 dBm @ 36 Mbps, -76 dB m @ 48 Mb ps ,

-

74 dBm @ 54 Mbps

802.11a:

-

90 dBm @ 6 Mbps, -89 dBm @ 9 Mbps, -89 dBm @ 12 Mbps, -85 dBm @

18 Mbps,

-83 dBm @ 24 Mbps, -79 dBm @ 36 Mbps, -75 dB m @ 48 Mb ps ,

-74 dBm @ 54 Mbps

Protocol Support

General Protocols: Proxy ARP, DNS, HTTP, HTTPS, IP, ICMP, SNTP,
TCP, UDP, RADIUS, SNMP, PPPoE, DHCP

- 13 -

Interface

Default Antennas: 2 dual-band omni-directional antennas, 2 dBi,
RP-SMA (male)

Connector for External Antennas:
AWK-3121-SSC-RTG: RP-SMA (female)

Fiber

Ports: 1, 100BaseFX port (SC connector)

Console Port:

RS-232 (RJ45-type)

LED Indicators: PWR1, PWR2, FAULT, STATE, signal strength, CLIENT
MODE, Bridge (no function), WLAN, 100M (fiber port)

Alarm Contact: 1 relay output with current carrying capacity of 1 A @ 24
VDC

Digital Inputs: 2 electrically isolated inputs

• +13 to +30 V for state “1”

• +3 to

-30 V for state “0”

• Max. input current: 8 mA

Optical Fiber

Single Mode 100BaseFX

Single Mode

Wavelength

1310 nm

Max. TX 0 dBm

Min. TX

-5 dBm

RX Sensitivity -34 dBm

Link Budget

29 dB

Typical Distance

40 kma

Saturation -3 dBm

Physical Characteristics

Housing:

Metal, providing IP30 protection

Weight:

850 g

Dimensions:

53.6 x 135 x 105 mm (2.11 x 5.31 x 4.13 in)

Installation:

DIN-Rail mounting, wall mounting (with optional kit)

Environmental Limits

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)

Ambient Relative Humidity:

5% to 95% (non-condensing)

Power Requirements

Input Voltage:

12 to 48 VDC, redundant dual DC power inputs

*Compliant with EN 50155 on 24 VDC

Connector:

10-pin removable terminal block

Power Consumption:

12 to 48 VDC, 0.121 to 0.494 A

Reverse Polarity Protection:

Present

- 14 -

Standards and Certifications

Safety:

UL 60950-1, EN 60950-1

EMC:

EN 301 489-1/17; FCC Part 15, Subpart B; EN 55022/55024

Radio:

EN 300 328, EN 301 893, DSPR

Rail Traffic:

EN 50155, EN 50121-1/4

Note: Please check Moxa’s website for the most up-to-date certification
status.

Reliability

MTBF (mean time between failures):
AWK-3121-SSC-RTG: 445,913 hrs

Warranty

Warranty Period:

5 years

Details:

See www.moxa.com/support/warranty.aspx

ATTENTION

The

AWK-3121-SSC-RTG is NOT a portable mobile device and

should be located at least 20 cm away from the human body.
The

AWK-3121-SSC-RTG is NOT

designed for the general public.

To deploy

AWK-3121-SSC-RTG

s and establish a wireless network

safely, a well-trained technician is required for installation.

ATTENTION

Use the antennas correctly: The 2.4 GHz antennas are

needed

when the

AWK-3121-SSC-RTG

operates in IEEE 802.11b/g. The

5 GHz antennas are needed for IEEE

802.11a. Make sure your

antenna installation is within a safety area, which is covered by a
lightning protection or surge arrest system.

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]