363-206-204
Release 6 Installation Tests
Issue 9 October 1998 5-17
3. Change the violation monitoring mode from VMR to VM in the same man-
ner as at the CO (Step 1).
4. Perform a DS3 or EC-1 loopback on all DS3/EC-1 groups at the RT by issu-
ing the following command:
a. Issue the command
opr-lpbk-t3
or
opr-lpbk-ec1
.
b. At the address prompt, enter
fn-all
.
c. At the execute prompt, enter
Y
.
d. Verify that loopbacks are present by entering
rtrv-alm
.
5. At the CO, perform a DS3 test as follows:
a. Issue the
toggle
command to return CIT communications to the
CO shelf
b. Issue the command t
est-trmsn-t3
.
c. At the address prompt, enter
‘a’
or the appropriate address corre-
sponding to the loopback at the far-end
d. At the direction prompt, enter
mux
.
e. At the duration prompt, enter
1
.
NOTE
:
This command will initiate a 1-minute DS3 transmission test from the CO
shelf to the RT shelf and looped back to the CO shelf.
6. If transmission is not error-free, isolate and correct the problem by checking
DS3 circuit packs and associated cabling.
7. Change the DS3 violation monitoring mode back to VMR at the CO and RT,
using the
set-t3
command.
8. Repeat the procedure for each function group equipped with DS3 packs.
9. After completion of DS3 testing, release the DS3 loopbacks at the RT by
performing the following:
a. Issue the command
rls-lpbk-t3
or
rls-lpbk-ec1
.
b. At the address prompt, enter
fn-all
.
c. At the execute prompt, enter
Y
.
d. Verify loopbacks are no longer present by entering
rtrv-alm
.
10. Remove all test signals from the DDM-2000 OC-3.
11. Press the UPD pushbutton on the SYSCTL.
Summary of Contents for DDM-2000 OC-3
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Page 144: ...2 70 Issue 9 October 1998 363 206 204 Equipment and Rear Access Cable Installation ...
Page 192: ...3 46 Issue 9 October 1998 363 206 204 Equipment and Front Access Cable Installation ...
Page 304: ...6 30 Issue 9 October 1998 363 206 204 Release 7 Installation Tests ...
Page 330: ...7 24 Issue 9 October 1998 363 206 204 Release 8 Installation Tests ...
Page 398: ...9 32 Issue 9 October 1998 363 206 204 Release 13 TARP Installation Tests ...
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