Product data

APCI-7xxx-3 Figures and Tables
Table 7-5: Pin assignment of port 3
Pin RS 232 RS 422 RS 485 RS422PEP Current Loop
14 TxD RA Tx / Rx + Rx+ +RCV-CL-DATA
15 RxD TB Tx- -XMIT-CL-DATA
35 -
13 GND GND GND
34 RTS RTS- Tsource
33 CTS RTS+ Rsource
54 DCD TA Tx+ +XMIT-CL-DATA
53 DSR
100 Ω 120 Ω
CTS+
73 DTR Rab CTS-
72 RI RB Tx / Rx - RX- -RCV-CL-DATA
Table 7-6: Pin assignment of port 4
Pin RS 232 RS 422 RS 485 RS422PEP Current Loop
70 TxD RA Tx / Rx + Rx+ +RCV-CL-DATA
71 RxD TB Tx- -XMIT-CL-DATA
69 GND GND GND
52 -
51 RTS RTS- Tsource
50 CTS RTS+ Rsource
32 DCD TA Tx+ +XMIT-CL-DATA
31 DSR
100 Ω 120 Ω
CTS+
12 DTR Rab CTS-
11 RI RB Tx / Rx - RX- -RCV-CL-DATA
36