Siemens S5-135U/155U System Manual page 242

CPUs, Memory Cards, Memory Submodules, Interface Submodules
With jumper J6, you can set all V.24 receivers so that you only require
positive-going signals (positive voltage region).
J6
With the submodule 0AA23, bridge 6 has no function; all signals can lie in
the positive range (corresponds to bridge setting 2-3).
With jumper J9, CTS can be set permanently to quiescent potential, i.e.
switched through from the front connector.
J9
Standard Connect-
Standard cables for connecting the V.24 submodule of the CPU to the partner
ing Cables of the
station are available from Siemens in various lengths, up to16 m.
V.24 Submodule
Order numbers and lengths can be found in the ordering information.
Connecting cable for CPU, CP 524, CP 525, CP 544
CPU, CP524/525, CP544
Receiver
3
Transmitter
Housing, GND
Figure 5-16 V.24 Submodule: Connecting Cable for CPU, CP 524, CP 525, CP 544
5-102
1 2
1 2
RxD
TxD
2
7
Shield
1
3
All received signals must be at
V.24 signal level.
All received signals can be in the
positive voltage region.
3
CTS at quiescent potential CTS at
pin 5
CPU, CP524/525, CP544
Transmitter
TxD
2
Receiver
RxD
3
7
1
Housing, GND
C79000-G8576-C199-06
System Manual