13
RS232 module (isolated) FCA2001-A1
Pin assignments
92
Building Technologies
008837_q_en_--
Fire Safety
14.05.2012
13.3
Pin assignments
13.3.1
X3 DTE-HOST
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
X3
6
5
7
8
RTS
TXD
DTR
RXD
0 V
CTS
DSR
DCD
DTE-HOST
T
1
2
3
4
T Participant with RS232 interface