User's Manual

INSTALLATIONS
CN2: PS/2 Keyboard and PS/2 Mouse Connectors
Keyboard Signal Pin # Mouse Signal
Keyboard data 1 Mouse data
N.C. 2 N.C.
GND 3 GND
5V 4 5V
Mouse (top)
Keyboard (bottom)
Keyboard clock 5 Mouse clock
N.C. 6 N.C.
CN1 J3: COM1/2 Serial Ports
CN1 (COM1) is a DB-9 connector, while J3 are COM pin-header
connectors.
Signal Name Pin # Pin # Signal Name
DCD, Data carrier detect 1 6 DSR, Data set ready
RXD, Receive data 2 7 RTS, Request to send
TXD, Transmit data 3 8 CTS, Clear to send
DTR, Data terminal ready 4 9 RI, Ring indicator
GND, ground 5 10 Not Used
J3: COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin # Signal Name
RS-232 R2-422 RS-485
1 DCD TX- DATA-
2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX- NC
5 Ground Ground Ground
6 DSR RTS- NC
7 RTS RTS+ NC
8 CTS CTS+ NC
9 RI CTS- NC
10 NC NC NC
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