V.24 Submodule; Application; Circuitry - Siemens S5-155U System Manual

Interface Submodules
5.8.3

V.24 Submodule

Application

Circuitry

Data transmission rate
5 - 72
The V.24 submodule is used with the RK 512 computer link, data
transmission with procedures 3964/3964R, data transmission with the
"open driver".
The V.24 submodule can be inserted in the following CPU:
Interface Submodule... For Use With...

V.24 submodule

CPU 928B
The following figure shows the circuitry for the V.24 interface
(transmit and receive lines):
Device 1
GND
TxD
RxD
Shield
Figure 5-10 V.24 Interface
Apart from the transmit and receive lines, the V.24 submodule has a
number of control and signalling lines to CCITT Recommendation
V.24/V.28. However, these control signals are not needed and not
used for the standard procedures of communication types RK 512,
3964/3964R and "open driver". (Exception: RTS/CTS with the "open
driver").
The following applies to V.24 signals:
Logic 0 is represented by a voltage
Logic 1 is represented by a voltage
If you fabricate the connecting cables yourself, note that unused inputs
at the partner station may have to be connected to quiescent potential.
Further details can be found in the appropriate manuals and in CCITT
Recommendations V.24/V.28.
A maximum of 19200 baud is permissible for data transmission with
the V.24 submodule.
Device 2
GND
TxD
RxD
Shield
U ≥ + 3V
U ≤ − 3V
System Manual
C79000-B8576-C199-03