Siemens FS20 - Pin Assignments

Mounting and installation of the compact control panels
RS232 / RS485 module
5
187 |
354
Building Technologies
008851_s_en_
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Fire Safety
2016
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01
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27
5.20.2 Pin assignments
You will find information on connecting the event printer in the chapter 'Event
printer'.
5.20.2.1 X3 DTE HOST on RS282 module
Pin Designation Description
8 ← DCD Data Carrier Detected
7 ← DSR Data Set Ready
6 ← CTS Clear To Send
5 0 V Ground
4 ← RXD Received Data
3 DTR → Data Terminal Ready
2 TXD → Transmitted Data
1 RTS → Ready To Send
Admissible cable cross-section: 0.2…1.5 mm²
T Participant with RS232 interface
X3
6
5
7
8
RTS
TXD
DTR
RXD
0 V
CTS
DSR
DCD
DTE-HOST
T
1
2
3
4