Connecting The Peripheral; Connector Pin Assignment; Fig. 7-1: 78-Pin Sub-D Male Connector; Table 7-1: Pin Assignment Of Port 1 - Addi-Data ADDICOM APCI-7800 Technical Description

APCI-7800
7

CONNECTING THE PERIPHERAL

7.1

Connector pin assignment

Pin
20
19
18
39
38
59
58
78
77
Pin
75
76
57
74
56
55
37
36
17
16

Fig. 7-1: 78-pin SUB-D male connector

Table 7-1: Pin assignment of port 1

RS 232 RS 422
TxD RA
RxD TB
GND
RTS
CTS
DCD TA
DSR
100Ω
DTR Rab
RI RB

Table 7-2: Pin assignment of port 2

RS 232 RS 422
TxD RA
RxD TB
-
GND
RTS
CTS
DCD TA
DSR
100Ω
DTR Rab
RI RB
Connecting the peripheral
RS 485 Current Loop
Tx / Rx + +RCV-CL-DATA
-XMIT-CL-DATA
Tsource
Rsource
+XMIT-CL-DATA
120Ω
Tx / Rx - -RCV-CL-DATA
RS 485 Current Loop
Tx / Rx + +RCV-CL-DATA
-XMIT-CL-DATA
Tsource
Rsource
+XMIT-CL-DATA
120Ω
Tx / Rx - -RCV-CL-DATA
GND
GND
31