Reference Manual

Table Of Contents
Product Description 14 (33)
© Ericsson. Commercial in confidence Rev B 2001-05-16 SRN/X-00:146
3.8 Battery Backup and BFU
In the cabinet a Battery Fuse Unit, BFU, is installed. The BFU supervises and
connects/disconnects the batteries at low voltage.
It is possible to chose between internal and external battery backup. Both cannot be used
at the same time.
Internal battery backup
Flexible 6-12 HE can be used for battery backup inside the cabinet.
The BB is 6 HE and the transmission box is also 6HE. If no extra transmission is needed,
the transmission box could be used for extended internal battery backup.
External battery backup
External battery backup will be available. It will be possible to share battery backup
between RBS 2106 and RBS 2102/200.