Nortel SONET AccessNode 800A Series Manual page 312

12-20 Cabinet maintenance operations
Procedure 12-3 (continued)
Adjusting the high voltage shutdown for replacement rectifiers
Rectifier and battery adjustments and connections
Table 12-8 shows the Nortel Networks recommended rectifier settings for the
optional battery selections.
Table 12-8
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
Action
Step
1
2
3
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 battery breaker panel.
Action
Turn the circuit breakers on the battery breaker panel to the OFF position.
Note: On the faceplate of the rectifier module are test points labeled outputs
V+ and V- (see Figure 12-3 on page 12-21).
Insert the test leads of the digital voltmeter (DVM) into the test points
(negative to negative, positive to positive).
Set the EQL/ FLT switch on the rectifier to the FLT position.
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