Ds3 Payload Loopback; Bert; Remote Ds3 Loopback; Remote Ds3 Loopback With Bert - ADTRAN OSU 300 User Manual

DS3 Payload Loopback

During this test, all payload information is re-framed and looped
back towards the network. See Figure 6-3 for a block diagram
illustrating the loopback point and the signal paths for this test.
This test does not interrupt data flow from the network to the DTE, but
it does block all DTE-to-network data.
DTE

BERT

Select BERT to perform a bit error rate test over the entire payload
bandwidth. Only one BERT test may be performed at a time.

Remote DS3 Loopback

This selection initiates a DS3 loopback test for the remote unit.

Remote DS3 Loopback with BERT

This selection initiates a DS3 loopback test for the remote unit and
sends/checks the BERT pattern over the entire DS3 payload
bandwidth.

DTE Ports 1-4

Access the DTE port diagnostic options by selecting the number
corresponding with the desired port (options 2 through 5) from the
61200663L1-1

Figure 6-3. DS3 Payload Loopback Test

OSU 300 User Manual
Chapter 6. Diagnostics
OSU 300
6-3