ADTRAN TSU 120, Руководство пользователя

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Chapter 4. Example Operations
61200.129L1-1 TSU 120 User Manual
105
TESTING EXAMPLE
If the example operations in the preceding pages were
followed, the TSU 120 is completely configured and
capable of passing data from the PBX and the DTE.
Prior to actually using the configuration to pass voice
and data, it is recommended to run tests on the circuit.
Testing consists of sending a test pattern from
end-to-end and checking for errors in the pattern.
There are two types of tests used to accomplish this.
• Send the pattern from one end and loopback the far
end.
• Send the pattern from both ends and check at both
ends.
Far End Looped Back Test
Two types of tests can be executed with the far end
looped. The first is a check of the network and the
network interfaces at both ends (QRSS). The second is
a check of the DTE port.
Network Interface Test
The Network Interface Test can only be run when a
full T1 is available (i.e., this cannot be used over
Fractional T1).
At the Main menu place the cursor on 4)TEST with the
number 4 or by scrolling. To activate the menu, again
press number 4 or Enter.
The unit displays the first two Test menu items with
the cursor on 1)NETWORK TESTS (see Figure 4-15).
To activate, press number 1 or Enter.