User's Manual

Hardware Installation Manual Installing the BSPS
02030311-03 Airspan Networks Ltd. 7-23
Symptom Possible Cause Remedy
No backup time
when AC is absent
Battery is not connected
Battery is discharged or power
is low.
Check battery charge, connections
and circuit breaker
Load is not operating Load is not connected
• Check load cables.
• Check load circuit breaker.
No current sharing
among rectifiers
(more then 2
segments difference
between any two
modules).
• Load is too high.
• Extension rack is not
properly connected to the
main rack.
• Rectifier(s) are not properly
adjusted.
• Decrease the load or add rectifiers
to the system.
• Check connections.
• Re-adjust the voltage of the
problematic rectifier(s).
Battery backup time
is too low
• Battery is too small for the
application.
• Charging voltage is too low
• Weak battery
• Increase battery capacity
• Raise the system output voltage
using the “VOLT ADJ.”
• Replace the battery and check
ambient temperature according to
manufacturer’s instructions
7.5. BSPS Cabinet Cabling
This section defines the procedures to be adhered to when installing data cables in
the BSPS cabinet.
Note: A minimum separation of 200 mm should exist between power and data
cables.
! Cable access apertures are located in the top surface of the cabinet. Separate
apertures are provided for power and data cables. All cabling entering and
exiting the BSPS cabinet shall be protected using flexible conduit and gland
systems suited to the cabinet. Power and data cables should exit from the BSPS
cabinet via separate apertures.
! Data cables are to be secured to cable guides provided on the left-hand side of
the cabinet when viewed from the rear. Cables are to be brought together to a