Moxa Technologies AWK-4121 User manual

Moxa AirWorks AWK-4121
Quick Installation Guide
Third Edition, July 2009
©2009 Moxa Inc. All rights reserved.
Reproduction without permission is prohibited.
P/N: 1802041210012

—1 —
Notes for the Reader
WARNING
Indicates that death or personal injury may occur if proper
precautions are not taken.
ATTENTION
Indicates that possible damage to this product or your property
may result if proper precautions are not taken.
NOTE
Highlights important information related to this product.
Package Checklist
Moxa’s AWK-4121 is shipped with the following items. If any of these items
is missing or damaged, please contact your customer service representative for
assistance.
y1 AWK-4121
y2 Antennas (5dBi, N-type (male), 2.4GHz)
y1 Quick Installation Guide
y1 Software CD
y1 Moxa Product Warranty Booklet
y1 Accessory Pack (including wall-mounting kit, screws and RJ45 field
plug)
NOTE
The above items come with the AWK-4121 standard version. The
package contents may vary in a different customized version.
Installation
Before installing the AWK-4121, 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-4121 has a default
IP address, user name and password that you must use when resetting or
connecting to your AWK-4121 device.
Default IP address: 192.168.127.253
User name: admin
Password: root
Please read “Chapter2 Getting Started” in AWK-4121 User’s Manual for
more details about installation and configuration.

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ATTENTION
For security reasons, we strongly recommend changing the
password. To do so, go to Maintenance ÆPassword, and then
follow the on-screen instructions.
NOTE
To make the change effective, you must save the change and then
click Restart ÆSave and Restart button to apply all changes.
Panel Layout of the AWK-4121
Front Panel View
Bottom Panel View
Side Panel View
Rear Panel View
12
3
4
5
9
2
12
6
8
7
9
10
1
11
1. MAIN antenna port.
2. AUX antenna port.
3. LEDs for PWR, FAULT,
STATE, WLAN and
LAN.
4. M12 A-coding connector
for PWR1 and PWR2.
5. M12 8-pin connector for
DI/DO
6. 10/100BaseT(X) RJ45
Port
7. RS-232 console port.
8. Reset button
9. Screw holes for wall
mounting
10. Waterproof vent
11. Grounding screw
12. Screw holes for DIN-rail
mounting
ATTENTION
Please DO NOT open or remove the vent 10. The warranty will
be invalid if the seal is removed.
All exposed connectors, including 1, 2, 4 - 8, should be tightly
covered by suitable caps when they are not in use.

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Dimensions (unit = mm)
66.5
224.0
147.7
Wall Mounting
In most applications, wall mount provides an easier installation. You will find
it quite easy to mount AWK-4121 on the wall, as illustrated below.
STEP 1:
Attach the wall-mounting kit with
M4 screws, as shown in the
diagram below.
STEP 2:
Mounting the AWK-4121 on the wall
requires 4 screws. Use the AWK-4121
device, with wall-mounting kit attached, as
a guide to mark the correct locations of the
4 screws. The heads of the screws are
recommended to be between 5.5mm and
8.5 mm in diameter, and the shafts should
not be more than 5.0 mm in diameter, as
shown in the figure.
5.5 - 8.5 mm
< 5.0 mm
Do not screw the screws all the way in to the wall—leave a space of about 2
mm to allow room for sliding the wall-mounting kit between the wall and the
screws.
ATTENTION
You can 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.

—4 —
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-4121
downwards, as indicated to the right. Tighten the four screws for added
stability.
⇒
ATTENTION
To avoid environmental vibration or shock, you can consider a
robust installation with four bigger screws, which the shafts are
between 7.0 mm and 8.5 mm in diameter, and fix the AWK-4121
onto wall directly and tightly.
DIN-Rail Mounting (Optional)
The DK-DC50131 die-cast metal kit can be
bought separately, and enable easy and robust
installation for the AWK-4121. A pair of
DK-DC50131s is needed for DIN-Rail
mounting. To install the DIN-Rail mounting
kits, tightly attach the two DIN-Rail mounting
kits on the rear panel of AWK-4121 with 12
screws. (6 screws for each kit)

—5 —
To Install
STEP 1:
Use the recessed button on the
spring-loaded bracket to lock it into
position.
STEP 2:
Insert the top of the DIN-Rail into
the slot just below the upper hook of
the DIN-Rail mounting kit. Push the
AWK-4121 toward the DIN-Rail
until the DIN-Rail attachment
bracket snaps into place.
To Release
STEP 1:
Pull out the two spring-loaded
brackets from the bottom until they
are fixed in the “release” position.
STEP 2:
Pull the AWK-4121 out and
upward.
Wiring Requirements
WARNING Safety First!
Be sure to disconnect the power cord before installing and/or
wiring your Moxa AWK-4121.
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.

—6 —
You should also pay attention to the following items:
yUse 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.
yYou 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.
yKeep input wiring and output wiring separate.
yIt is strongly advised that you label wiring to all devices in the system when
necessary.
Grounding Moxa AWK-4121
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. There must be no
potential difference between two ground potentials, otherwise
there is a risk that the device could be destroyed.
Wiring the Redundant Power Inputs
The AWK-4121 must be connected to a power-over-Ethernet (PoE) IEEE
802.3af compliant power source or an IEC60950 compliant limited power
source. When AWK-4121 is powered via DC power, the M12 A-coding
connector on the bottom panel is used for the AWK-4121’s two redundant
inputs. The pin assignment is shown below:
1
43
2
5
Pin Power Input
1 V1+
2 V2+
3 V1-
4 V2-
5 GND
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).
Make sure External Power Adaptor (includes power cords and
plug assemblies) provided with the unit is certified and suitable
for use in your country.
Before connecting the AWK-4121 to the DC power inputs, make
sure the DC power source voltage is stable.

—7 —
Wiring the Digital Inputs and Relay
Contact (Digital Output)
The AWK-4121 has two sets of digital input—DI1 and DI2. Each DI
comprises two contacts of the 8-pin M12 connector on the AWK-4121’s
bottom panel. These two digital inputs can be connected to
digital-output-enabled sensors for on-site status monitoring.
The AWK-4121 also has one relay output, which consists of the two contacts.
These relay contacts are used to detect 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.
A field-installable plug, M12A-8PMM-IP68, is recommended for connecting
the AWK-4121’s DIs and relay.
Communication Connections
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) ports located on the AWK-4121’s bottom panel are used
to connect to Ethernet-enabled devices.
Below we show pinouts for both MDI (NIC-type) ports and MDI-X
(HUB/Switch-type) ports.
MDI Port Pinouts MDI-X Port Pinouts 8-pin RJ45
Pin Signal Pin Signal
1 Tx+ 1 Rx+
2 Tx- 2 Rx-
3 Rx+ 3 Tx+
6 Rx- 6 Tx-
1 8
Pin Signal
1
2 Relay
3 DI1 I1
4 DI1 COM_1
5 DI2 I2
6 DI2 COM_2
7
8 Reserved

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RS-232 Connection
The AWK-4121 has one RS-232 (8-pin RJ45) console port located on the
bottom panel. Use either an RJ45-to-DB9 or RJ45-to-DB25 cable to connect
the Moxa AWK-4121’s console port to your PC’s COM port. You may then
use a console terminal program to access the AWK-4121 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 -----
18
NOTE 1. 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.
2. 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
To ensure the IP67-rated connectivity, you must use a waterproof
housing during any communication activities. An IP67-rated field
installable plug, which is attached in AWK-4121’s accessory
pack, may be needed in this case. The installation guide is shown
below:
Waterproof RJ45 Plug (Optional)
Dimensions (unit: mm)

—9 —
Installation
STEP 1:
Attach the gasket ①to the housing ③
STEP 2:
Insert the cable (ex. CAT5e) through the clamp ring ④, screw nut ②, seal ⑤
and housing ③, as follows:
STEP 3:
Crimp the modular RJ plug to the cable; (NOTE: the snagless cover shield and
strain-relief boot are not recommended.) Then, assemble the seals and the
housing (③and ⑤).
STEP 4:
Tightly screw the clamp ring ④to the housing and check to make sure that the
plug is securely fastened.
(NOTE: for a tighter connection, you can connect the RJ-45 plug to the
AWK-4121 before STEP 4.)