363-205-401
Power Up:
Issue 7, March 1997
Page 1 of 6
DLP-505
Install 337A Battery Charger
SUMMARY: Insert 337A BATTERY CHARGER into power shelf (battery string 1
and 2 in a 51-type cabinet) or slot on battery shelf (80-type, frame, or battery string 3
in a 51-type cabinet) and press HIGH RATE CHG/ACTIVATE button. Measure
−
42 to
−
56 volts at LDU (
−
48B/GND). Unseat BATTERY CHARGER. Repeat for additional
BATTERY CHARGERs.
1.
NOTE:
In the 51-type cabinet, the BATTERY CHARGERs associated with
battery string 1 (lower two battery shelves) and battery string 2 (upper
two battery shelves) are to be installed in power shelf. BATTERY
CHARGER for battery string 3 (located in 181A apparatus mounting.
Get one 337A BATTERY CHARGER and inspect it for possible damage.
2.
Verify that fuses on BATTERY CHARGER are not blown (Figure 1).
Figure 1 – Location of Fuses on 337A BATTERY CHARGER
HIGH
RATE
CHG ACTIVATE
BAT DISCHG
CHARGER
BATTERY
OPEN BATT
ON
337A
FUSES
Lucent