Northern Telecom Meridian 1 Installation And Maintenance Manual page 175

2. Unplug the RPI power cord from the AC outlet.
3. Press the release catch with a screwdriver and open the cover.
4. Disconnect the wires from the RPI.
5. Remove the two bottom screws.
6. Lift up and remove the RPI.
7. Hang the new RPI on the two top screws.
8. Install and fasten the two bottom screws.
9. Reconnect all the wires to the RPI.
10. Close the RPI cover.
11. Plug the RPI power cord into the AC outlet.
12. Reenable the TCM ports associated with the RPI using the instructions
in "TCM Status" on page 134.
13. Perform reevaluation if necessary.
Replacing an RPI power unit
If the problem appears to be related to the power supply unit, follow these
instructions.
Unplugging an RPI renders any attached Base Station
out of service.
1. Perform an orderly shutdown of the TCM ports associated with the RPI
using the instructions in "TCM Status" on page 134.
2. Unplug the RPI power cord from the AC outlet.
3. Press the release catch with a screwdriver and open the cover.
4. Disconnect the jumper lead, grounding plates, grounding strap, and
cable from the connection board.
5. Unscrew the power supply unit and remove it.
ATTENTION!
Meridian Companion Installation and Maintenance Guide
Maintenance Page 165 of 220