Dte Payload Loopback (Dtplb) - Paradyne 9161 Reference Manual

DTE Payload Loopback (DTPLB)

9161-A2-GH30-20
The DTE Payload Loopback (DTPLB) loops the information received on the
Network or DSX-1 interface back to the network after it has passed through the
port circuitry. Use DTPLB for isolating problems on the DTE line. An attached
device or test equipment must generate and monitor data to be looped back.
DSX
Port
DTLB DTLB
DCE DCE
Port 2 Port1
CAUTION:
The Abort All Test selection from the Tests screen or the system test
timeout (set via the Test Timeout configuration option on the System
Options branch of the menu tree) will not interrupt a DTE Loopback test
that has been initiated by an attached device since the Local Loopback
lead will still be asserted.
The following tests cannot be running when a DTPLB test is initiated:
DTE Loopback, Data Channel Loopback, or Send Pattern Test on the same
port
September 1997
Troubleshooting and Maintenance
All 1s
Network
Interface
496-15211
5-23