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CARR-POW (Carrier Power Supply)
Issue 1 June 2005 773
Figure 38: Battery Charger (Optional Part of J58890CE-2): Front
The charger is used only without an uninterruptible power supply (UPS). The charger contains:
● Three 48 VDC batteries for backup power to the cabinet
● A DC power relay to automatically switch the batteries into the power circuit if a main
power failure is detected
Figure 39: AC Power Distribution in Multicarrier Cabinets
on page 774 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.
Batteries
Battery
Charger
battchar RBP 031996