Interface
E1 Spread Spectrum Radios
5-13
Figure 5-27 Enter Password
9
The default password is “000000”.
C1.
Tri-Loc-Loop\Tn-L-LP: En/Dis
Local Loopback mainly conduct loopback test for E1interface. It loops input signal of E1 interface out to the
output of the same E1 interface. This function is testing whether external equipment such as DLC is working
well or not. Perform Local Loopback test in the local end for the convenience of testing the equipment’s
stability. Use the Right/Left button to select the T1~Tn tributary of the local E1 interface. Press OK. The
Right/Left button is also used for selecting En/Dis (En=Enable/Dis=Disable). This is used along with E1
transmission tester for E1 interface test.
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This function can not be used with its own PRBS function for testing.
For example:
1. To set the tributary 1 of E1 to Local Loopback. Enter \TEST Item\ Tri-Loc-Loop \T1-L-LP. Press OK.
Figure 5-28 Tn-L-LP:En/Dis (1)
2. Use the
Right/Left
button to change Dis (Disable) to En (Enable). Press
OK
.
Figure 5-29 Tn-L-LP:En/Dis (2)
Local End: Tributary 2 in Local Loopback. appears at the right bottom of the LCD. TEST led gives an orange
L
