Nortel SONET AccessNode 800A Series Manual page 309

Procedure 12-2 (continued)
Replacing the rectifier
Step
Removing the defective rectifier
5
6
7
Inserting a new rectifier
8
9
10
11
Powering the new rectifier
12
13
AccessNode Series 800A Outside Plant Cabinet Installation 323-3001-210 Issue 1.0
Action
Loosen the two thumb screws on the bottom left and right side of the rectifier
shelf (see Figure 12-2 on page 12-16).
Fold-down the hinged retainer bracket (see Figure 12-2 on page 12-16).
Remove the rectifier module being replaced by sliding it out of the rectifier
shelf.
Insert a new rectifier module into the same slot of the rectifier shelf as from
which the defective rectifier was removed.
Push the rectifier module into the shelf until the connector on the back is
seated firmly within the rectifier shelf connector.
Switch the ac circuit breaker for the replacement rectifier (RECT1, RECT2 or
RECT3) in the ac load box (or ac power pedestal, if installed) to the ON
position.
Note: The rectifier positions are numbered right to left with position #1 on the
far right side of the shelf.
Flip-up the hinged retainer bracket on the rectifier shelf and secure it by
tightening two thumb screws on the left and right side.
Switch the dc circuit breaker on the replacement rectifier to the ON position.
Note: The dc circuit breaker on the rectifier must be turned ON before the ac
circuit breaker is turned ON.
Switch the ac circuit breaker on the replacement rectifier to the ON position.
Note: When the rectifier is initially powered ON, the fail alarm (ON/RFA) LED
illuminates red. When the rectifier is operational, the RFA LED illuminates
green.
—continued—
Cabinet maintenance operations 12-17