Loop Disabled Without Ovd Message (Qpc414 Network Card) - Nortel Meridian 1 Manual

Page 108 of 190 Clearing network equipment faults
Symptom:
Loop disabled without OVD message
(QPC414 Network Card)
There is probably a system message indicating that the loop or loops on this
card are defective or disabled, but there is no overload (OVD) message
indicating the card is disabled. The LED on the faceplate may be lit. Look up
all system messages and maintenance display codes in the X11 system
messages guide and follow the instructions given. If the fault does not clear,
use this procedure.
For information on switch settings, see Circuit card installation and testing
(553-3001-211). Replace equipment as described in Meridian 1 hardware
replacement (553-3001-520). You may need to replace one of the following:
— Dual loop peripheral buffer (DLB) card: QPC659
— NT5K10 DLB card used in the NT5K11 EEPE module
— Network card: QPC414
— PE card
— Cable between network card and DLB card
Possible cause
Defective network
card
553-3001-510 Standard 11.00 June 1999
Note: Continually observe and look up system messages as you perform
this procedure.
Action
Test the loops on the card by entering:
LD 30
LOOP loop "loop" represents the loop number.
Try to enable the loops by entering:
ENLL loop
Wait for an OVD message.
If you receive an OVD message at this point, replace the network card.
If there is no OVD message and the loops will not enable, go to the next
possible cause.
(continued)