Curtis AR-B1682 - Manual (Page 16)

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2-7. COM1 CONNECTOR(CN24)
COM1 : COM1 Connector, DB9 male connector
The COM1 Connector assignments are as follows:
PIN ASSIGNMENT
1 DCD
2 RX
3 TX
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
2-8. COM2 CONNECTOR(CN12)
COM2 : COM2 Connector
The COM2 Connector assignments are as follows :
ASSIGNMENT
PIN
RS-232 RS-422 RS-485
1 DCD TX- DATA-
2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX- NC
5 GND GND GND
6 DSR RTS- NC
7 RTS RTS+ NC
8 CTS CTS+ NC
9 RI CTS- NC
10 NC NC NC
2-9. PS2 KB(CN25)
DIN : PS2 Connector
The PS2 connector can support Keyboard & Mouse.
The pin assignments for PS2 Connector are as follows :
PIN ASSIGNMENT
1 KBDATA
2 MSDATA
3 GND
4 Vcc
5 KBCLK
6 MSCLK