Moxa Technologies AWK-3121-M12 User manual

2012 Moxa Inc. All rights reserved.
Reproduction without permission is prohibited.
P/N: 1802031210060
AWK-3121-M12
Quick Installation Guide
Moxa AirWorks
Second Edition, March 2012

- 2 -
Overview
Moxa’s AWK-3121-M12 Access Point/Bridge/AP 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-M12 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-M12 a convenient yet reliable solution for
any industrial wireless application.
Package Checklist
Moxa’s AWK-3121-M12 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-M12
•1 Quick Installation Guide
•1 Software CD
•1 Moxa Product Warranty Booklet
•1 Cable Holder with a Screw
•2 Protective Caps
Installation and Configuration
Before installing the AWK-3121-M12, 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-3121-M12 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-M12 can be powered by a DC power input or PoE (Power
over Ethernet). The AWK-3121-M12 will use whichever power source you
choose.
Step 2: Connect the AWK-3121-M12 to a notebook or PC
Since the AWK-3121-M12 supports MDI/MDI-X auto-sensing, you can
use either a straight-through cable or crossover cable to connect the
AWK-3121-M12 to a computer. If the LED indicator on the
AWK-3121-M12’s LAN port lights up, it means the connection is
established.
Step 3: Set up the computer’s IP address
Set an IP address on the same subnet as the AWK-3121-M12. Since the
AWK-3121-M12’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.

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Step 4: Use the web-based manager to configure
AWK-3121-M12
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-M12
By default, the AWK-3121-M12’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.
Step 6: Test communications
We will describe two test methods. Use the first method if you are using
only one AWK-3121-M12, and use the second method if you are using two
or more AWK-3121-M12s.
Testing method for one AWK-3121-M12
If you are only using one AWK-3121-M12, you will need a second
notebook computer (B) equipped with a WLAN card. Configure the WLAN
card to connect to the AWK-3121-M12 (the default SSID is MOXA) and
change the IP address of notebook B so that it is on the same subnet as
the first notebook (A), which is connected to the AWK-3121-M12.
After configuring the WLAN card, establish a wireless connection with the
AWK-3121-M12 and open a DOS window on notebook B. At the prompt,
type
ping IP address of notebook A
and then press the Enter key. A “Reply from IP address …” response
means the communication was successful. A “Request timed out.”
response means the communication failed. In this case, recheck the
configuration to make sure the connections are correct.

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Testing method for two or more AWK-3121-M12s
If you have two or more AWK-3121-M12s, you will need a second
notebook computer (B) equipped with an Ethernet port. Use the default
settings for the first AWK-3121-M12 connected to notebook A, and
change the second or third AWK-3121-M12 connected to notebook B to
Client mode and then configure the notebooks and AWK-3121-M12s
properly.
After setting up the testing environment, open a DOS window on
notebook B. At the prompt, type
ping IP address of notebook A
and then press Enter key. A “Reply from IP address …” response means
the communication was successful. A “Request timed out.” response
means the communication failed. In this case, recheck the configuration
to make sure the connections are correct.
Panel Layout of the AWK-3121-M12
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,
PoE, FAULT, and STATE LEDs
6. LEDs for signal strength
7. WLAN LEDs: CLIENT BRIDGE,
WLAN, and LAN LEDs
8. RS-232 console port
9. 10/100BaseT(X) RJ45 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 (unit = mm)
DIN-Rail Mounting
The aluminum DIN-Rail attachment plate should be fixed to the back
panel of the AWK-3121-M12 when you take it out of the box. If you need
to reattach the DIN-Rail attachment plate to the AWK-3121-M12, 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 j
ust
below the stiff metal spring.
STEP 2:
The DIN
-Rail attachment unit will
snap into place as shown below.
To remove the AWK-3121-M12 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-M12 to a wall, as illustrated below.
STEP 1:
Remove the aluminum
DIN
-Rail attachment plate
from the
AWK-3121-M12,
and then attach the wall
mount plates with M3
screws, as shown in the
adjacent diagrams.
STEP 2:
Mounting the
AWK-3121-M12 to a wall requires 4
screws. Use the
AWK-3121-M12 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
sh
ould 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-M12
downwards, as indicated to
the right. Tighten the four
screws for added stability.

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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 M
oxa AWK-3121-M12.
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.

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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-M12
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-M12’s top panel are used for the AWK-3121-M12’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-M12’s top panel.

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ATTENTION
Before connecting the
AWK-3121-M12 to the DC power inputs,
make sure the DC
power source voltage is stable.
Wiring the Relay Contact
The AWK-3121-M12 has one relay output, which consists of the two
contacts of the terminal block on the AWK-3121-M12’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-M12 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-M12’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-M12. 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-M12.
STEP 2:
After mounting the AWK-3121-M12 and plugging in the LAN
cable, tighten the cable along the device and wall.

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Communication Connections
10/100BaseT(X) Ethernet Port Connection
All AWK-3121-M12s have a 10/100BaseT(X) Ethernet port (4-pin
shielded M12 connector with D coding). The 10/100TX port located on the
AWK-3121-M12 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-3121-M12 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-M12’s console port to your PC’s COM port.
You may then use a console terminal program to access the
AWK-3121-M12 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 -----
ATTENTION
For railway rolling stock applications, AWK
-3121 devices must
use a galvanically isolated power supply that is compliant with the
EN 50155 standard.

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LED Indicators
The front panel of the Moxa AWK-3121-M12 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.
PoE Amber On Power is being supplied via PoE.
Off
Power is not being supplied via PoE.
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/Re
d
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 mode only)
Off
BRIDGE
MODE
Green
On
AWK functions in Bridge Mode.
Off
AWK is not in Bridge Mode.
CLIENT
MODE Green
On
AWK functions in Client Mode.
Off
AWK is not in Client Mode.
WLAN Amber On WLAN is in used
Off WLAN is not in use
LAN
Green
On TP port’s 100Mbps link is active.
Blink Data is being transmitted at 100 Mbps
Off TP port’s 100Mbps link is inactive.
Yellow
On
TP port’s 10Mbps link is active.
Blink
Data is being transmitted at 10 Mbps
Off
TP port’s 10Mbps link is inactive.

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Specifications
Standards:
IEEE 802.11a/b/g for Wireless LAN
IEEE 802.11i
for Wireless Security
IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseTX
IEEE 802.3af for Power
-over-Ethernet
IEEE 802.1D for Spanning Tree Protocol
IEEE 802.1w for Rapid STP
Spread Spectrum and Modulation (typical):
• DSSS with DBPSK, DQPSK, CCK
• OFDM wi
th 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 c
hannels)
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)
JP:
2.412 to 2.472 GHz (13 channels, OFDM)
2.412 to 2.484 GHz (14 channels, DSSS)
5.18 to 5.24 GHz (4 channels for W52)
Security:
• SSID broadcast
enable/disable
• Firewall for MAC/IP/Protocol/Port
-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

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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 Mbps,
-
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 dBm @ 48 Mbps,
-
74 dBm @ 54 Mbps
Protocol Support
General Protocols: Proxy ARP, DNS, HTTP, HTTPS, IP, ICMP, SNTP,
TCP, UDP, RADIUS, SNMP, PPPoE, DHCP
Interface
Default Antennas*:
2 dual-band omni-directional antennas, 2 dBi,
RP-SMA (male)
*Only available with the AWK
-3121 and AWK-3121-SSC models.
Connector for
External Antennas:
AWK
-3121 and AWK-3121-SSC: RP-SMA (female)
AWK
-3121-M12: QMA (female)
RJ45 Ports: 1, 10/100BaseT(X) auto negotiation speed, F/H duplex
mode, and auto MDI/MDI-X connection (AWK-3121 only)
Fiber Ports:
1, 100BaseFX port (SC connector, AWK-3121 only)
M12 Ports: 1, 10/100BaseT(X) auto negotiation speed, F/H duplex
mode, and auto MDI/MDI
-X connection (AWK-3121-M12 only)
Console Port:
RS-232 (RJ45-type)
LED Indicators: PWR1, PWR2, PoE*, FAULT, STATE, signal strength,
CLIENT MODE, BRIDGE MODE, WLAN, 10/100 (TP port), 100M (fiber
port), LAN (M12 port)
*PoE is only available for the AWK
-3121 and AWK-3121-M12
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
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)

- 14 -
Ambient Relative Humidity:
5% to 95% (non-condensing)
Power Requirements
Input Voltage:
12 to 48 VDC, redundant dual DC power inputs or 48
VDC Power-over-Ethernet (IEEE 802.3af compliant)*
*Compliant
with EN 50155 on 24 VDC
*PoE is only available for the AWK
-3121 and AWK-3121-M12
Connector:
10-pin removable terminal block
Power Consumption:
12 to 48 VDC, 0.121 to 0.494 A
Reverse Polarity Protection:
Present
Standards and Certifications
Safety:
UL 60950-1, EN 60950-1
Hazardous Location:
UL/cUL Class I Division 2, ATEX Zone 2 (for
AWK-3121 only)
EMC:
EN 301 489-1/17; FCC Part 15, Subpart B; EN 55022/55024
Radio:
EN 300 328, EN 301 893, DSPR (Japan)
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: 392,209 hrs
AWK
-3121-M12: 480,831 hrs
AWK-3121-SSC: 445,913 hrs
Warranty
Warranty Period:
5 years
Details:
See www.moxa.com/support/warranty.aspx
ATTENTION
The
AWK-3121-M12 is NOT a portable mobile device and should
be located at least 20 cm away from the human body.
The
AWK-3121-M12 is NOT designed for the general public. To
establish a wireless network safely
using the AWK-3121-M12
, a
well
-trained technician should be consulted for installation.
ATTENTION
Use the antennas correctly: The 2.4 GHz antennas are needed
when the
AWK-3121-M12
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.

- 15 -
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]