Patton electronics 2720/I Series, User Manual

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Off The Model 2720 is in remote or CO initiated loopback
mode or sending a pattern. Local loopback is disabled.
LocP The Model 2720 is in Local Loopback mode, and is send-
ing a test pattern.
Remote Loop Idle (default)
The Remote Digital Loopback (RDL) test checks the performance
of both the local and remote Model 2720s, as well as the communica-
tion link between them. Data from the local DTE is sent across the
entire communication circuit and looped back to the local DTE.
The Model 2720 Initiating a RL can be in one of the following
states:
Idle No user-controlled loopbacks are active.
TxPr The Model 2720 is sending the preparatory phase pat-
tern lasting for approximately 2 -5 seconds.
WtAk The Model 2720 is waiting for an acknowledgement from
the remote unit. If the remote unit does not respond, the
WtAk message will remain on the screen.
RxAk The Model 2720 has received an acknowledgement from
the remote unit.
Tout
The Model 2720 is waiting before entering the Remote
Loopback test mode.
TM The Model 2720 has successfully negotiated the Remote
Loopback test and is in control of the remote unit. You
may send a test pattern at this point by pressing:
c <spacebar>
TxTr The Model 2720 is sending a Terminate Loopback mes-
sage to the remote unit. If the remote unit does not
respond, the local unit will return to the Idle state.
Tx1s If the remote Model 2720 responds to the local NetLink-
T1™’s terminate loopback request, the local unit then
sends an all ones pattern before returning to the Idle
state
TxP The Model 2720 is sending a test pattern while in Test
Mode
IdlP The Model 2720 is sending a test pattern in place of
data. The Model 2720 is not in test mode.