Nortel DMS-100 Series Maintenance Manual page 63

Loss of talk battery
The following figure illustrates shows the talk battery distribution in a
remote line concentrating equipment (RLCE) frame with two LCE shelves.
The power distribution is the same for the OPAC.
Talk battery distribution on LCE frame
RLCE
FSP
RMM
cooling baffle
HIE
LCA–1
LCA–0
cooling baffle
Talk battery return
For redundancy of return
The A feed provides talk battery for the second shelf of the RLCE frame.
The B feed provides talk battery for the first shelf. The feeds are not
redundant and can affect up to 320 subscriber lines. Some redundancy is
present with the talk battery returns. A single fault does not always cause an
outage.
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Maintenance overview 1-47
Talk battery fuses
Talk battery A feed
Talk battery
fuses
Talk battery B feed
Power
distribution
center