User's Manual

E1 Spread Spectrum Radios
5-16
Figure 5-35 Tn-R-LP:En/Dis (2)
C3. Tri-TX-PRBS\Tn-PRBS: En/Dis
Press the Right/Left button to enter PRBS tributary test. Use Pseudo Random Code for E1 signal transmission
test along with the Remote Loopback, normal link equipment and the testing equipments to test the stability.
Press OK. Use the Right/Left button to select Enable/Disable. Press OK. On using this function, the LCD will
display the accumulated BER.
When Tributary 3 is in Remote Loopback (TEST led is orange). Open tributary 3 PRBS test. Now will
appear at the right bottom of the LCD. Remote end’s TEST led will turn orange too with “T” display on the front
panel LCD.
Remote End:
Figure 5-36 Tn-PRBS:En/Dis
 Note:
Pseudo-Random Bit Sequence (PRBS):
P