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