Nortel Meridian 1 Hardware Replacement Manual page 172

Page 172 of 250
553-3001-520 Standard 17.00 January 2002
Replacing equipment
Removing equipment
1 Software disable the conference/TDS card:
LD 34 or LD 38 or LD 46
DISX loop
Note: You must use the command DISX to disable both loops and all
hardware functions. Disabling loops with the command DISL prevents
software from using the loops but does not disable the card.
2 Set the ENB/DIS switch to DIS.
3 Unhook the locking devices on the card; pull it out of the card cage.
Installing equipment
1 Set the ENB/DIS switch to DIS on the replacement card.
2 Set option switches and jumpers on the replacement card the same as
on the card you removed. If there is a vintage change, be sure to check
Circuit Card: Installation and Testing (553-3001-211) for any
differences.
3 Insert the replacement card into the vacated slot and hook the locking
devices. Both red LEDs should flash three times and remain lit if the
card is good.
4 Set the ENB/DIS switch to ENB on the replacement card.
5 Software enable the card:
ENLX loop
Note: You must enable the card with the command ENLX. Enabling
the loops with the command ENLL does not enable the card.
6 Test each loop on the card (when each test completes, enter ****):
In LD 38 "loop" is the conference loop that is the
odd loop of the conference/TDS loop pair. In LD 34
and LD 46 "loop" is the TDS/MFS loop that is the
even loop of the conference/TDS loop pair.
This prompt is available in LD 34, LD 38, and
LD 46. Use the appropriate loop number (see
Step 1 on page 172 in "Removing equipment"
on page 172).