Pin Assignments - Siemens FS720 Mounting & Installation

7.19.2 Pin assignments

7.19.2.1 X3 DTE HOST on RS282 module
Building Technologies
Fire Safety
You will find information on connecting the event printer in the chapter 'Event
printer'.
Pin Designation
8 ← DCD
7 ← DSR
6 ← CTS
5 0 V
4 ← RXD
3 DTR →
2 TXD →
1 RTS →
Admissible cable cross-section: 0.2...1.5 mm²
DTE-HOST
DCD
DSR
CTS
0 V
RXD
DTR
TXD
RTS
T Participant with RS232 interface
Installing, exchanging and connecting modules
Description
Data Carrier Detected
Data Set Ready
Clear To Send
Ground
Received Data
Data Terminal Ready
Transmitted Data
Ready To Send
X3
8
7
6
5
T
4
3
2
1
RS232 / RS485 module
193 | 248
A6V10210390_m_en_--
2018-08-29
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