– 4 –
– 5 –
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www.moxa.com/support
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2010 Moxa Inc., All Rights Reserved
Earth Ground: Refer to the following figure for the location of the
Earth Ground on the terminal block power connector. Connect the
EG wire to an appropriate grounded metal surface.
EG
U
VGA and DVI-D Outputs
The MPC-122-K comes with a D-Sub 15-pin female connector on
the front panel to connect a VGA CRT monitor. It also comes with
a DVI-D connector on the front panel to connect to a panel with
HDMI (High-Definition Multimedia Interface).
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Ethernet Ports
The 10/100/1000 Mbps Ethernet ports use RJ45 connectors.
Pin
10/100 Mbps 1000 Mbps
1 ETx+ TRD(0)+
2 ETx-
TRD(0)-
3 ERx+ TRD(1)+
4 –
TRD(2)+
5 –
TRD(2)-
6 ERx-
TRD(1)-
7 –
TRD(3)+
8 –
TRD(3)-
1
8
8
1
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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
–
–
–
1 2 3 4 5
6 7 8 9
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CF Card Slot
The MPC-122-K computer comes with a CompactFlash socket
located on the front panel. Remove the protective cap on the front
panel to install the CompactFlash card.
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USB Hosts
The MPC-122-K has six USB 2.0 full speed hosts that use a type A
connector on the front panel of the computer. An additional USB
port is located on the display. The port supports a keyboard and
mouse, and can also be used to connect a Flash disk for storing
large amounts of data.
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Audio Interface
The MPC-122-K comes with an audio input and an audio output,
allowing users to connect a speaker or an earphone.
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Reset Button
Press the “Reset Button” on the front panel of the MPC-122-K to
reboot the system. The Ready LED will blink on and off for the first
5 seconds, and then maintain a steady glow once the system has
rebooted.
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Real-time Clock
The MPC-122-K's real-time clock is powered by a lithium battery.
You should 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 battery is replaced with an
incorrect type of battery.
7.
Powering on the MPC-122-K
To power on the MPC-122-K, connect the “terminal block to power
jack converter” to the MPC-122-K’s DC terminal block (located on
the side panel), and then connect the power adaptor. Press the
Power Switch button to turn on the computer. Note that the Earth
Ground wire should be connected to the top pin of the terminal
block. It takes about 30 seconds for the system to boot up. Once
the system is ready, the Power LED will light up.
