2/4-wire transmission
ON
S2
1 2 3 4 5 6 7 8
ON
S2
1 2 3 4 5 6 7 8
Data control by data
flow or RTS-control
ON
S2
1 2 3 4 5 6 7 8
ON
S2
1 2 3 4 5 6 7 8
Factory settings
ON
S2
1 2 3 4 5 6 7 8
ON
S3
1 2 3 4
S2: 8 not used
6045-2001
2-wire
4-wire
The fail-safe function forces the signal state of the
receiver to OFF when the connected transmitter is in
Data control
tri-state (transmitter inactive). The receiver located
furthest away shall be terminated.
RTS-control
Terminering
with fail-safe
ON
S3
1 2 3 4
ON
S3
1 2 3 4
ON
S3
1 2 3 4
Supervision table when selecting data bits
7 bits
8 bits
No parity
Parity
1 stop bit
2 stop bits
Number of bits 9
10 10
Terminated (4-wire)
Terminated (2-wire)
No termination
10 11 11
11 12
11