Siemens S5-135U/155U - Manual (Page 241)

5-101
System Manual
C79000-G8576-C199-06
When the V.24 submodule is delivered, the jumpers are set as shown in the
following figure. As a rule, you can therefore use the V.24 submodule
immediately.
Backplane Connector
Front Connector
25-Pin Sub. D-Type
J2
J1
J3
J4
Br5
Br6
Br8
Br9
Br7
Figure 5-15 V.24 Submodule: Jumper Settings when Delivered
You can change over the polarity of the transmit and receive data with
jumpers J3 and J5.
1 2 3
J3 Transmit data in normal polarity
Transmit data negated
J5 Receive data in normal polarity
Received data negated
Jumper Settings of
the V.24
Submodule
CPUs, Memory Cards, Memory Submodules, Interface Submodules