Connecting The Peripheral; Connector Pin Assignments: Standard Delivery; Fig. 7-1: 37-Pin Sub-D Male Connector - Addi-Data ADDICOM APCI-7300 Technical Description

Connecting the peripheral

7 CONNECTING THE PERIPHERAL
7.1

Connector pin assignments: standard delivery

RS485 RS422 Current Loop
120 Ω 100 Ω
Tsource
Rsource
Tx/Rx- RB -RCV-CL-DATA
TA +XMIT-CL-DATA CD
TB -XMIT-CL-DATA
Tx/Rx+ RA +RCV-CL-DATA
Rab (1)
GND GND GND
120 Ω 100 Ω
Tsource
Rsource
Tx/Rx- RB -RCV-CL-DATA
TA +XMIT-CL-DATA CD
TB -XMIT-CL-DATA
Tx/Rx+ RA +RCV-CL-DATA
Rab (1)
GND GND GND
TA: Tx422+
TB: Tx422-
Rab: Connection to a terminal resistor
(1): Cable connection to 100Ω/120Ω terminates the RS422/RS485 lines
with the 100Ω/120Ω resitor.
32

Fig. 7-1: 37-pin SUB-D male connector

Table 7-1: Pin assignment
RS232
Pin Pin
DSR 20 1
RTS 21 2
CTS 22 3
RI 23 4
24 5
RxD 25 6
TxD 26 7
DTR 27 8
GND 28 9
DSR 29 10
RTS 30 11
CTS 31 12
RI 32 13
33 14
RxD 34 15
TxD 35 16
DTR 36 17
GND 37 18
19
RA: Rx422+
RB: Rx422-
RS232 Current Loop
CD +XMIT-CL-DATA TA
RxD -XMIT-CL-DATA
TxD +RCV-CL-DATA
DTR
GND GND
DSR
RTS Tsource
CTS Rsource
RI -RCV-CL-DATA
CD +XMIT-CL-DATA TA
RxD -XMIT-CL-DATA
TxD +RCV-CL-DATA
DTR
GND GND
DSR
RTS Tsource
CTS Rsource
RI -RCV-CL-DATA
APCI-7xxx
RS422 RS485
TB Port 4
RA Tx/Rx+
Rab (1)
GND GND
100 Ω 120 Ω
Port 3
RB Tx/Rx-
TB Port 2
RA Tx/Rx+
Rab (1)
GND GND
100 Ω 120 Ω
Port 1
RB Tx/Rx-