Addi-Data ADDICOM APCI-7300, Техническое описание

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APCI-7xxx Connecting the peripheral
Fig. 7-2: 9-pin SUB-D male connector
Table 7-2: Pin assignment of the 9-pin connector
RS485 RS422 Current Loop RS232
Pin Pin
RS232 Current Loop RS422 RS485
120
Ω
100
Ω DSR 6 1 CD +XMIT-CL-DATA TA
Tsource RTS 7 2 RxD -XMIT-CL-DATA TB
Rsource CTS 8 3 TxD +RCV-CL-DATA RA Tx/Rx+
Tx/Rx- RB -RCV-CL-DATA RI 9 4 DTR Rab (1)
5 GND GND GND GND
TA: Tx422+ RA: Rx422+
TB: Tx422- RB: Rx422-
Rab: Connection to a terminal resistor
(1): Cable connection to 100
Ω
/120
Ω
terminates the RS422/RS485 lines
with the 100
Ω
/120
Ω
resitor.
7.2 Pin assignment: RS422 with handshake signals
With the module MX422-PEP you can use the modem control signals RTS
and CTS in RS422 mode.
Table 7-3: Pin assignment of the 37-pin connector:
RS422 with handshake signals
RS422
Pin Pin
RS422
IA 20 1 TA
Port 4 CB 21 2 TB Port 4
CA 22 3 RA
RB 23 4 IB
TA 24 5 GND
TB 25 6 IA
Port 3 RA 26 7 CB Port 3
IB 27 8 CA
GND 28 9 RB
IA 29 10 TA
Port 2 CB 30 11 TB Port 2
CA 31 12 RA
RB 32 13 IB
TA 33 14 GND
TB 34 15 IA
Port 1 RA 35 16 CB Port 1
IB 36 17 CA
GND 37 18 RB
19
TA: Tx422+ RA: Rx422+
TB: Tx422- RB: Rx422-
IA: CTS+ CA: RTS+
IB: CTS- CB: RTS-
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