Table 1-1: Intended Purpose Depending On The Operating Mode - Addi-Data ADDICOM APCI-7800 Technical Description

APCI-7800

Table 1-1: Intended purpose depending on the operating mode

1
Module Operating
mode
RS232
PM232
PM232-G
RS232
20 mA
PMTTY
Current
loop
PM422 RS422
RS422
PM422-G
RS485
PM485
RS485
PM485-G
1
PMxxx-G: ex. PM232-G: module for the mode RS 232 with option G (optical isolation)
PMTTY: module for the mode 20 mA current loop. It is optically isolated as a standard.
2
The max. lengths are for standard interface cables
Port
configuration
modem control signals connected
on the board (through ADDIREG)
or externally to the connector
modem control signals connected
on the board (through ADDIREG)
or externally to the connector
current flows in rest state
automatic transmitter control
transmitter control
DTR, RTS or data bit
automatic transmitter control
transmitter control
DTR, RTS or data bit
Intended purpose of the board
Distance between
transmitter and
2
receiver
30 m
30 m
1 km
1.2 km
1.2 km
200 m
1.2 km
200 m
1.2 km
Environment
industry
noisy
industrial
environment
very noisy
industrial
environment
noisy industrial
environment
very noisy
industrial
environment
industry
noisy industrial
environment
industry
very noisy
industrial
environment
9