User guide

System Hardware
1
2
3
4
9
10
11
12
A
A’
BSD-321
B
B’
*
31 IE
AFB earth
fault sensor
Previous AFB unit
Next AFB unit
1
2
3
4
9
10
11
12
A
A’
BSD-321
B
B’
*
31
IE
AFB earth
fault sensor
Previous AFB unit
Next AFB unit
1
2
3
4
9
10
11
12
A
A’
BSD-321
B
B’
*
31
IE
AFB earth
fault sensor
Previous AFB unit
Next AFB unit
*: Connect if AFB earth fault detection is required. This feature should
be used on only one BSD for each cable segment.
Detection will de done towards the IE terminal (31)
AFB cable with continuous shield
AFB cable with discontinuous shield
AFB cable without shield
System Description, AutroSafe Integrated Fire & Gas Detection System, 116-P-ASAFE-IFG/XE Rev. B, 2005-10-27,
Autronica Fire and Security AS
Page 32