Installation Tests
Local Equipment and Cross-connect Tests
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6 - 1 3
365-372-334 R2.0
Issue 4, November 2004
Requirement:
The DS3 test set will indicate it is receiving an error
free signal.
Important!
By default, DS3 cross connections have already been
made. If an error free signal is not received, check for cross-
connections with the rtrv-crs-sts1 command.
Important!
If an error free signal is not received, check DS3
cabling for proper connections.
DS3 Facility Loopback
Testing
Facility Loopback testing allows the installer to verify the electrical
cabling to the Metropolis
®
DMXplore shelf. When the shelf is cabled to
other DS3 terminating equipment, it will be necessary to contact the
Customer Network Control Center and have a signal established at the
port under test, in order to complete the loopback testing.
Step 1
With the DS3 test set still connected to the port under test, establish a
loopback with the opr-lpbk-t3:lt-dmxplore:b-1:ctag::,,,facility;
command.
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Step 2
Click the Send button.
Result:
The Response Window should display the command
followed by a COMPLD message. A facility loopback will exist on
the port issued by the command.
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Step 3
Once the loopback is up, a test signal shall be generated at the DS3 test
set which will verify the cabling is correct.
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Step 4
While observing error free transmission, grasp the DS3 cable about 2
inches from the BNC connector head and gently rotate (twist) the cable
in a clockwise and counterclockwise direction about 45 degrees
(gently).
Result:
If any errors are detected while performing this "wiggle"
test, the BNC connector must be cut off and replaced.
If an error free signal is not received:
•
Check the LBO settings using the rtrv-t3 command.
Summary of Contents for Metropolis DMXplore
Page 8: ... C O N T E N T S v i i i 365 372 334 R2 0 Issue 4 November 2004 ...
Page 16: ... T A B L E S x v i 365 372 334 R2 0 Issue 4 Novmeber 2004 Glossary ...
Page 286: ... Backplane Pin Replacement Replacement Methods D 1 0 365 372 334 R2 0 Issue 4 November 2004 ...
Page 292: ... Installation Checklist Overview E 6 365 372 334 R2 0 Issue 4 November 2004 ...
Page 326: ... G L O S S A R Y G L 3 0 365 372 334 R2 0 Issue 4 November 2004 ...