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www.moxa.com/support
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2013 Moxa Inc. All rights reserved.
Grounding the W321/341
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
the power.
ATTENTION
This product is intended to be mounted to a well-grounded
mounting surface such as a metal panel.
Shielded Ground:
The
shielded ground
(or
SG
, sometimes called
protected ground
) contact is the leftmost contact
of the 3-pin power terminal block, when viewed
from the angle shown here. Connect the SG wire to
an appropriate grounded metal surface.
Ethernet Ports
The 10/100 Mbps Ethernet port uses RJ45 connectors.
Pin
Signal
1
ETx+
2
ETx-
3
ERx+
6
ERx-
Serial Ports
The serial ports use DB9 connectors. Each port can be configured
by software for RS-232, RS-422, or RS-485. The pin assignments
for the ports are shown in the following table:
Pin RS-232 RS-422
RS-485
(4-wire)
RS-485
(2-wire)
1
DCD
TxDA(-) TxDA(-)
---
2
RxD
TxDB(+) TxDB(+)
---
3
TxD
RxDB(+) RxDB(+) DataB(+)
4
DTR
RxDA(-) RxDA(-) DataA(-)
5
GND
GND
GND
GND
6
DSR
---
---
---
7
RTS
---
---
---
8
CTS
---
---
---
SD Slot
The W321/341 has an internal SD slot for storage expansion. The
SD slot allows users to plug a Secure Digital (SD) memory card
compliant with the SD 1.0 standard for up to 1 GB of additional
memory space, or a Secure Digital High Capacity (SDHC) memory
card compliant with the SD 2.0 standard for up to 16 GB of
additional memory space. Use a screw driver to remove the SD slot
cover to access the slot. The slot is located on the right panel of the
W321/341. Plug the SD memory card directly into the socket, and
then replace the SD slot cover. The SD card will be mounted at
/mnt/sd
. To remove the SD card from the slot, gently push the
SD card further into the slot and then remove the pressure to allow
the card to spring out. You may then remove the card.
DI/DO
The W321 comes with 4 digital input channels and 4 digital output
channels. The DI/DO connectors is an array of five pairs of pin
headers located on the right side of the computer. See the
following figures for pin assignments.
Console Port
The serial console port is a 4 pin header RS-232 port. It is designed
for serial console terminals, which are useful for viewing boot-up
messages. Use the CBL-4PINDB9F-100 cable included with the
product to connect a PC to the W321/341’s serial console port.
Reset
Press the
Reset
button and hold it in for at least 5 seconds to load
the factory default configuration. After killing all running processes,
the system will take several seconds to synchronize its software to
factory defaults. After the default configuration has been reloaded,
the system automatically reboots. The
Ready
LED will blink on and
off for the first 5 seconds, and then maintain a steady glow once
the system has rebooted.
Real-time Clock
The W321/341’s real-time clock is powered by a lithium battery.
We strongly recommend that you do not replace the lithium
battery without help from a qualified Moxa support engineer. If you
need to change the battery, contact the Moxa RMA service team.
ATTENTION
There is a risk of explosion if the lithium battery is replaced
with an incompatible battery.
6.
Powering on the W321/341
To power on the W321/341, install the
terminal-block-to-power-jack converter on the W321/341’s DC
terminal block (located on the left rear panel), and then connect
the power adaptor. Note that the ground/earthing wire should
connect to the rightmost pin of the terminal block. It takes about
30 seconds for the system to boot up. Once the system is fully
booted the
Ready
LED will light up.
7.
Connecting the W321/341 to a PC
There are two ways to connect the W321/341 to a PC:
(1) through the serial console port, or
(2) by SSH console over the network.
The COM settings for the serial console port are:
Baudrate =
115200 bps, Parity = None, Data bits = 8, Stop bits = 1,
Flow Control = None.
ATTENTION
Use the CBL-4PINDB9F-100 cable included with the
product to connect a PC to the W321/341’s serial console
port. Remember to choose
VT100
terminal type.
To access the SSH console, you will need to know the W321/341’s
IP address and netmask. The default LAN settings are shown below.
For first-time configurations you may find it convenient to use a
crossover Ethernet cable to connect directly from the PC to the
W321/341.
Default IP Address Netmask
LAN 1
192.168.3.127
255.255.255.0
LAN 2 (wireless)
192.168.4.127
255.255.255.0
Once the W321/341 is powered on, the
Ready
LED will light up
and a login page will open. Use the following default username and
password to proceed. The defaults are:
Login: root
Password: root
8.
Configuring the Ethernet Interface
To configure the Ethernet interface, use the following commands.
Please note that
etho0
stands for the IP address of the LAN port,
wlan0
stands for the IP address of the wireless LAN.
ifconfig eth0 192.168.3.127
ifconfig wlan0 192.168.4.127
NOTE
Refer to the W321/341 User’s Manual for information on
how to configure the WLAN interface, and for other
configuration information.
