Lucent Technologies Metropolis DMXplore, Руководство по установке

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Installation Tests Local Equipment and Cross-connect Tests
6 - 1 0 365-372-334 R2.0
Issue 4, November 2004
DS1 Testing Procedure Perform the following steps to verify backplane cabling to A/D
function slot of the access panel.
Cabling to DS1 connectors located on the access panel are via
backplane connections. If a main pack is installed, DS1 cabling will
need to be tested.
This procedure requires the use of a DS1 test set.
Important! The access panel requires a RJ-45 connector for DS1
inputs, a cable that will connect from the RJ-45 to the test set is
required to complete this testing.
Step 1
Set the DS1 test set to transmit and receive a Quasi-Random Sequence
Signal (QRSS) with B8ZS formatting.
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Step 2
Connect a cable from the DS1 test set to the associated DS1 port of the
A/D Group on the access panel.
Requirement:
The DS1 test set will indicate it is receiving an error
free QRSS signal with B8ZS formatting.
Important!
By default, DS1 cross connections have already been
made.
If an error free signal is not received:
• Verify that the DS1 line coding format is set to B8ZS using the
rtrv-t1
command
• Verify that the LBOs are set according to cable length using the
rtrv-t1
command (see Setting LBO Values (page 6-4).
• Check DS1 cabling for proper connections.
DS1 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 DS1 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 DS1 test set still connected to the port under test, establish a
loopback with the opr-lpbk-t1:lt-dmxplore:a-1-1-1:ctag::,,,facility;
command.