Siemens FS720 - Pin Assignments

Installing, exchanging and connecting modules
RS232 / RS485 module
7
193 |
248
Building Technologies
A6V10210390_m_en_
--
Fire Safety
2018
-
08
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29
7.19.2 Pin assignments
You will find information on connecting the event printer in the chapter 'Event
printer'.
7.19.2.1 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