Siemens Cerberus PRO FC721 - X3 DTE HOST RS282 Module Pinout; X2 RS485 Module Pinout

Mounting
Options
5
37 |
118
Building Technologies
A6V10211100_f_en_
--
Fire Safety
2015
-
12
-
15
5.5.2.2 X2 on RS485 module
Pin Designation Description
4 RS485_A Line A
3 RS485_B Line B
2 Not connected
1 Not connected
Admissible cable cross-section: 0.2…1.5 mm²
T1 First participant
Tn Last participant
*) Stub lines must not exceed 20 m!
● Consider the polarity A, B!
● Terminate the line after the last participant (Tn) with 120 Ω!
3
4
X2
RS485_B
RS485_A
T1
Tn
2
1
*)
A
B