Harris Constellation - 3 DS3;4 DS3 Loopback Tests; 3 DS3;4 DS3 Loopback; Figure 4-6: 3 DS3;4 DS3 Loopback Test

Harris Corporation Constellation™
Loopback Procedures 4-7
LOOPBACK
TESTING
3DS3/4DS3 Loopback Tests
3DS3/4DS3 Loopback
Customer test equipment is required for this test. This test loops back the signal
from the near end to the far end. See
Figure 4-6 .
You need to access the hidden Control submenu to conduct the DS3 loopback
test for each channel.
From the Keypad, select
CONTROL > hidden menu (F1 + F3 or Ctrl B) > DS3-x LPBK
Figure 4-6: 3DS3/4DS3 loopback test
HLM-3xDS3 or
4xDS3
Hi Cap
Modem
ACU
Transmitter
Assembly
ACU
Receiver
Assembly
Local Terminal
Remote Terminal
Test set
DS3-1
Hi Cap
Modem
Transmitter
Assembly
Receiver
Assembly
HLM-3xDS3 or
4xDS3
DS3-2
DS3-3
DS3-1
DS3-2
DS3-3
DS3-4
DS3-4