Avaya Definity SI Maintenance Manual page 118

Routine Maintenance Procedures
4. Before installing the replacement power unit in the carrier, turn the power
unit on its side and operate rocker switches 1 through 4 on the DIP switch
as follows:
Switch
1
2
3
4
5. Move the locking slide on the replacement power unit to the extreme left
position and open the locking lever.
6. Insert the power unit into the carrier until some resistance is felt.
7. Lift the locking lever upward until it latches.
8. Move the locking lever slide on the power unit to the extreme right position.
9. Connect the power cord and set the power switch to ON.
5-14 Issue 4 May 2002
631AR Position
open
closed
open
closed
NOTE:
In the open position, the rocker is down on the side opposite the
number. In the closed position, the rocker is down on the side
adjacent to the number.
631BR Position
open
closed
open
open
555-233-123