Siemens S5-135U/155U System Manual page 240

CPUs, Memory Cards, Memory Submodules, Interface Submodules
Data Transmission
A maximum of 19200 bps is permissible for data transmission with the V.24
Rate
submodule.
Pin Assignments
The following table shows the pin assignments of the 25-pin subminiature
of the V.24
D-type connector in the front plate of the V.24 submodule:
Submodule
Pin
13
25 25
14
1 1
The signal numbering complies with DIN 66020 (V.24/RS 232C); the signal
designations are the abbreviations used internationally (RS 232C).
5-100
Des. to Des. to Int. Abbre-
DIN CCITT viation
66020 V.24
1 Shield
2 D1 103 TxD
3 D2 104 RxD
4 S2 105 RTS
5 M2 106 CTS
6 M1 107 DSR
7 E2 102 GND
8 M5 109 DCD
18 PS3 141
20 S1.2 108.2 DTR
22 M2 125 RI
23 S4 111
25 PM1 142
Input/ Remarks
Output
Output
Input
Output
Input
Input
Input
Output Not supported
Output
Input
Output
Input Not supported
System Manual
C79000-G8576-C199-06