Nortel SONET AccessNode 800A Series Manual page 320

12-28 Cabinet maintenance operations
Procedure 12-6
Adjusting the load sharing for replacement
rectifiers
Use this procedure to adjust the load sharing of the replacement rectifier.
If the rectifiers that are to be replaced are installed in a new installation or in a
cabinet that is not in-service, reference Chapter 10, "Adjusting the rectifier and
the dc distribution shelf" for rectifier installation and adjustment
Documentation references
See NTP 169-2071-500.
Test sets
A voltmeter RMS Fluke 8050A (or equivalent) test set is needed.
Tools required
A screwdriver, slotted, small (0.1-inch width) is required.
Cautions
Observe all cautions listed in Procedure 12-2 on page 12-13.
Rectifier and battery adjustments and connections
Table 12-11 shows the Nortel Networks recommended rectifier settings for the
optional battery selections.
Table 12-11
Rectifier adjustment settings
High voltage
Battery shutdown
manufacturer (HVSD)
Gates -56.0 ± 0.1
Eagle-Picher -56.0 ± 0.1
Yuasa -56.0 ± 0.1
AccessNode 323-3001-210 Issue 1.0
Equalize
(EQL)
-55.5 ± 0.1
-55.4 ± 0.1
-54.0 ± 0.1
Note: Batteries are individually fused on the BBP.
Float
(FLT)
-55.0 ± 0.1
-54.7 ± 0.1
-54.0 ± 0.1
—continued—
Low voltage Low voltage
alarm disconnect
(LVA) (LVD)
-47.0 ± 0.1 -43.0 ± 0.1
-47.0 ± 0.1 -43.0 ± 0.1
-47.0 ± 0.1 -43.0 ± 0.1