User's Manual Part 2b

Installing the BSPS Hardware Installation Guide
7-12 Airspan Networks Ltd. 02030311-05
7.3. Installing BSPS Batteries
To provide the BSPS system with back-up power, two battery circuits are provided.
Batteries are located on two shelves fitted in the lower sections of the system
cabinet.
A battery protection tray is to be fitted beneath the BSPS racks to prevent tools from
falling onto batteries below.
Warnings:
1) Final battery connection, at the DC distribution rack, must only be made
once the battery is fully installed.
2) The Airspan insulated torque wrench 1PAC10383 AAD must be used when
attaching battery terminations. The wrench is pre-set to ‘break’ at 5.5 Nm
(Newton-meters).
3) Caution must be observed when fitting and connecting batteries as to
prevent the shorting of connections to the cabinet structure.
Insulated tools and the removal of jewellery are mandatory in all live power
installations.
To install the BSPS battery:
1. Prior to installation use a digital multimeter (DMM) to measure the voltage
output from each monobloc. A reading of 12.3 Volts DC is required from each
monobloc.
2. Install the monoblocs onto the battery trays as shown in Figure 7-6.