CARR-POW (Carrier Power Supply)
Issue 1 May 2002
8-397555-233-143
Figure 8-17 shows AC power distribution in some multicarrier cabinets. The DC
power-distribution cables are on both sides of the cabinet. These cables supply
power to each of the carriers. The optional battery charger is at the right side of
the power-distribution unit.
Figure 8-17. AC Power Distribution in Multicarrier Cabinets
Power Backup
If AC power fails, three 48-V DC batteries power the system for:
■ 15 seconds in an EPN cabinet
■ 10 minutes in the expansion control carrier in the “A” position of an EPN
cabinet
3
2
"C" Position
Carrier
"B" Position
Carrier
"A" Position
Carrier
"D" Position
Carrier
Battery
Charger
(Optional)
"E" Position
Carrier
"F" Position
Fan Unit
Power
Distribution
Unit
mcc4_g3 RBP 041696
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