Nt5K21Aa Extended Multi - Frequency Compelled; Sender/Receiver Card - Nortel Meridian 1 Hardware Replacement Manual

Page 146 of 250

NT5K21AA Extended Multi - Frequency Compelled

Sender/Receiver Card

553-3001-520 Standard 17.00 January 2002
Replacing equipment
a. Connect all cables from the interior of the I/O assembly to the
backplane.
b. Connect all plugs, wires, and cables to the backplane.
c. Position the power plug access plate. Replace the screws.
15 Return cards to their slots at the rear of the UEM. Reconnect all cables
to connectors.
16 Position the backplane access plate. Replace the screws.
17 Return cards to their slots at the front of the UEM. Reconnect all cables
to connectors.
18 Turn on power to the UEM power supply by setting the power supply
switch to ON (right):
19 Enable the shelf by entering
ENLS l s
If a second shelf is assigned to a loop, enable that shelf also by entering
ENLS l s
End the session in LD 32 by entering
****
20 Test the shelf by testing each loop with
LD 30
LOOP l s
If there is a problem, an NWS system message will be produced.
21 End the session in LD 30 by entering
****
22 Tag defective equipment with a description of the problem and
package it for return to a repair center.
Use this procedure to replace a NT5K21AA card in an IPE Modules.
DANGER
Module covers are not hinged; do not let go of the
cover. Lift the cover away from the module and set it
out of your work area.