363-206-204
Releases 9 and 11 Installation Tests
Issue 9 October 1998 8-17
2. To verify correct fiber connection to Site2NE1, do one of the follow-
ing:
a. Remote login to Site2NE1 and check for the following alarm
(other alarms may exist) to verify proper fiber connection:
MINOR main-2 ------------- inc.OC3 LOS
b. Locally verify main-2 is flashing, indicating loss of incoming
signal.
3. Correct fiber connections if alarms are not as specified. Reconnect
the fiber at Site1NE1 Main-1 Out and observe that alarms discussed
above are clear.
NOTE
:
VT AIS alarms due to cross-connections remaining from Local and DSX-1
Cross-Connect tests may be observed. Ignore them at this time.
4. Continue at Site1NE1 by disconnecting OLIU M2 Out and observing
alarms as described previously, but in accordance with the fiber dis-
connected.
5. Continue around the ring until all fiber has been tested.
Establishing Cross-Connects and
System Test
Description
On initial installation/turn-up of Releases 9 and 11 systems there are no default
cross-connects, thus all cross-connects need to be entered. In Releases 9 and
11, DS1 or DS3 services and EC-1 interfaces are provided and thus VT and STS-
1 cross-connects are applicable.
Due to the flexibility and complexity of cross-connects it is strongly recommended
to document the cross-connects of each site and have a compilation located at
each site. Therefore in the event the cross-connect map is lost, cross-connects
can be reestablished expeditiously.
Explanation of Cross-Connects
For DS1 service one can imagine 84 race tracks (timeslots/channels) around the
ring. Travel (transmission) takes place in both directions (receiving end chooses
best signal). Each track requires two "drop cross-connects" to enter/exit the track.
All other points on the ring require a "pass-through" cross-connect.
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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