SM500MK4 Service Manual
52
PC (9 PIN) TO LCU 401
(FOR PC to LCU 401 communication)
9 Pin D-Sub (Female)
25 Pin D-Sub (Male)
Pin
Signal
Signal
Pin
1 CD
CD 8
2 RXD
RXD 3
3 TXD
TXD 2
4 DTR
DTR 20
5 GND
GND 7
6 DSR
DSR 6
7 RTS
RTS 4
8 CTS
CTS 5
9 CI
CI 22
PC (25 PIN) TO LCU 401
(For PC to LCU 401 communication)
25 Pin D-Sub (Female)
25 Pin D-Sub (Male)
Pin
Signal
Signal
Pin
2 TXD
TXD 2
3 RXD
RXD 3
4 RTS
RTS 4
5 CTS
CTS 5
6 DSR
DSR 6
7 GND
GND 7
8 CD
CD 8
20 DTR
DTR 20
22 CI
CI 22
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