23(23)
Datum/Date
Rev
Dokumentnr/Documentnr
Uppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked
Tillhör/Referens-File/Reference
1999-07-15 E
1541 - ASB 150 02 Uen
Faktaansvarig - Subject responsible
6 HARDWARE ADMINISTRATION
On re-start of the exchange the administration data is updated in the system hardware administration area
indicating the service technician where to re-insert the differentshut down boards after a programupgrade.
Using the information in the RP menu of RASC, reduces the risk of misplacing boards after the hot
swapping. The most recent and valid configuration is stored on the CPU-D4 containing information such
as ROF number, RYS number and revision states, also during the shutdown state of these boards. The
battery back-up RAM stores the complete administration information for up to a maximum of 64 boards.
To read out the configuration enter RASC, go to the item configuration or look under the maintenance
menu HW/SW the configuration list.
7 REPLACEMENT OF BATTERIES
The only components in the PBX requiring maintenance are the batteries used as power backup for the
entire system and the battery on the VMU-boards.
Toensuresufficientbattery capacity intheeventofpower failure,thebatteriesmustbereplacedperiodically.
The replacement period for the power supply battery backup of the PBX, and for the battery on the
VMU-board (ROF 157 5117/1) are five years.
For more information of the power supply battery backup of the PBX, see document
INSTALLATION INSTRUCTION 1531-BML BS 101 01,
INSTALLATION INSTRUCTION 1531-BDV 113 08,
INSTALLATION INSTRUCTION 1531-BML 351 048 and
INSTALLATION INSTRUCTION 1531-BML 351 013.
To ensure proper function the batteries should be replaced by new ones every five years.
The replacement of the battery on the VMU-board is done easily:
1 be sure that the main supply is ON
2 then replace the battery package on the front of the VMU-board
The product No. for the battery on the VMU-board is RNV 991 942/001.