Verilink PRISM 3030 (34-00208.L) Product Manual - Manual (Page 66)

56 C HAPTER 4: T ERMINAL O PERATION
This does not activate the transmission of the loop code.
When FAR test is activated from the FAR/LOC front panel switch, the loopback code
transmitted is framed or unframed depending on the setting of this field. The default is
Framed.
Port Loop
Used to loop a high-speed DTE port at the near or far end (see Diagram 7 of
Figure 4-8 on page 59) far-end loops use V.54 loop codes to activate. To enable the
V.54 function, refer to V.54 Loop on page 67.
Port Unloop
Pressing Enter takes down the specified loop from the selected port.
BERT BERT
Specifies the direction the BERT signal is sent. If the direction is changed from the
front panel, the new choice is not updated on the terminal interface until this screen
is exited and then reentered. The choices are IDLE, T1 NET, T1 DTE, Channels
1– 24, plus XY NET and XY DTE, where X = 2 or 3 and Y = A through F.
All testing must be stopped before channels can be reallocated to an active port.
Pattern
Specifies the pattern to be transmitted during a test. Modifying this field does not
cause the pattern to be transmitted (refer to Start Test). The choices are QRSS, 63,
511, 2047, 2
15
, 2
20
, 2
23
,1:8, 3:24, ALT, and CLEAR. The CLEAR pattern passes
the received data through the unit (alarm detection and reporting is disabled while
the test is active).
Test Length
Defines the run -time of test pattern generation and error accumulation. The
choices are Continuous, 15 min, 30 min, 60 min, and 24 hour.
Start Test
Pressing Enter with the cursor on this field starts the selected test pattern. TEST
IN PROGRESS appears once the test has started. To end the test, press Enter on
STOP TEST.
Reset Errors
Pressing Enter with the cursor on this field causes the test error results to be
cleared to zero.
The following display-only fields reflect the selected test parameters and the
results of these tests only.
Pattern Sync
Displays the state of pattern sync during a test. If no test is in progress, NO TEST
is displayed. If a test is active, but the receiver is not in pattern sync, NO SYNC is
displayed. If the receiver is in pattern sync, IN SYNC is displayed.
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