Lucent Technologies FiberReach DDM-2000 - Page 1882

DLP-512
: Detailed Level Procedures 363-206-305
Page 2 of 6 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
N
ARROWBAND
S
HELF
7. Is dial tone present at NBS?
8. Use CO and NBS schematic drawings (SDs) to check wiring. Use office
drawings to check CO wiring. Look for tip and ring reversal between NBS
protector block terminal; also check COT channel appearance and office
equipment if universal. If any alarms exist in DT Server or
DSXBIU
, correct
them and continue until dial tone is present.
9. At NBS, dial local MDF or CO number and make talk tests.
10. Was call completed with transmission in both directions?
11. Replace NBS channel unit and repeat talk tests (then replace COT channel
unit if universal).
12. Was call completed with transmission in both directions?
13. Use CO and NBS schematic drawings (SDs) to check wiring. Use office
drawings to check CO wiring. Look for tip and ring reversal between NBS
protector block terminal; also check COT channel appearance and office
equipment if universal. Correct wiring and repeat
Step 9
until communication
is good in both directions.
14. At CO, dial test line number to ring telephone at NBS.
If
YES
, proceed to
Step 9
.
If
NO
, continue with
Step 8
.
If
YES
, proceed to
Step 14
.
If
NO
, continue with
Step 11
.
If
YES
, proceed to
Step 14
.
If
NO
, continue with
Step 13
.