12-24 Cabinet maintenance operations
AccessNode 323-3001-210 Issue 1.0
Procedure 12-4
Setting the equalize voltage level
Use this procedure to adjust a replacement rectifier for equalize (EQL) voltage
in an S800A cabinet that is currently carrying traffic.
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.
Cautions
Observe all cautions listed in Procedure 12-2 on page 12-13.
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.
Documentation references
See NTP 169-2071-500.
Rectifier and battery adjustments and connections
Table 12-9 shows the Nortel Networks recommended rectifier settings for the
optional battery selections.
Note: Batteries are individually fused on the BBP.
—continued—
Table 12-9
Rectifier adjustment settings
Battery
manufacturer
High voltage
shutdown
(HVSD)
Equalize
(EQL)
Float
(FLT)
Low voltage
alarm
(LVA)
Low voltage
disconnect
(LVD)
Gates -56.0 ± 0.1 -55.5 ± 0.1 -55.0 ± 0.1 -47.0 ± 0.1 -43.0 ± 0.1
Eagle-Picher -56.0 ± 0.1 -55.4 ± 0.1 -54.7 ± 0.1 -47.0 ± 0.1 -43.0 ± 0.1
Yuasa -56.0 ± 0.1 -54.0 ± 0.1 -54.0 ± 0.1 -47.0 ± 0.1 -43.0 ± 0.1
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