BSX Isolated Audio Entry System
PD-142 Issue 1
Installation and Operating Manual
Page 10 of 32
Power Supply Capability/Limitations
Type Rating
Description
Cab3
2A Continuous
3A Peak
Used on 1 door systems with either fail secure
or fail safe lock releases up to 1A.
Sufficient spare capacity to supply a 200 coded
access controller and/or a Pax1 proximity reader.
Cab5
4A Continuous
5A Peak
Used on 2 door systems with either fail secure
or fail safe lock releases up to 1A.
Sufficient spare capacity to supply a 200 coded
access controller and/or a Pax1 proximity reader.
N.B.
No extra equipment should be powered without first consulting the technical department.
Battery Backup
Space is provided in the cabinet to fit a standard 7AH battery to the power supply (both
Cab3 and Cab5 models) to provide battery backup in case of mains supply failure.
Backup time depends largely upon the idle power usage of the system which can vary
widely according to the following factors: - lock type, the number and type of phones, door
status indicator (on or off), the number of door panels and any additional equipment which
may be fitted.
The longest backup times are achievable with fail secure lock releases as these only take
current while unlocking the door; backup times exceeding 8 hours for a single door and 6
hours for a two door system are possible for moderate usage, reducing if system usage is
particularly high.
The use of fail safe lock releases will require individual calculation for back up time. For
instance, a 2 door system with 1A maglocks should not be expected to last much longer
than 2 hours.
Cab3 and Cab5 supplies do not support the use of batteries larger than 7AH.