ATLAS 550 System Manual - Adtran

ATLAS 550 System Manual Section 4 User Interface Guide
MODULES (USSI-2) > TEST > LOOPBACK
Write security: 4; Read security: 5
Test pattern to be transmitted out the port. The following options are available:
NO LOOPBACK No active loopback.
LOCAL LOOPBACK Activates both a local loopback (back toward the DTE) and a port
loopback (toward the network).
REMOTE LOOPBACK V.54 loopback code to be sent to the far end, and if the device at the far
end supports V.54, the device activates a loopback on detection of the
V.54 code.
MODULES (USSI-2) > TEST > LOOPBACK STATUS
Read security: 5
This read-only option indicates a port’s current loopback status by displaying any of the following status
messages:
NO LOOPBACK ACTIVE REMOTE LOOP-UP FAILED
LOOPING UP REMOTE UNIT PORT LOOPED FROM REMOTE SOURCE
REMOTE UNIT LOOPED BACK PORT LOOPBACK ACTIVE
LOOPING DOWN REMOTE UNIT
MODULES (USSI-2) > TEST > 511
Write security: 4; Read security: 5
Controls the activation of the 511 test pattern generator and detector.
MODULES (USSI-2) > TEST > 511 RESULT
Read security: 5
Displays the results of the 511 test. This option is read-only. Clear these results by pressing when
CLR is selected.
NONE Pattern is not synchronized.
LOS At one point the pattern was synchronized, but is currently not
synchronized.
SYNC Pattern is synchronized.
ES Number of seconds with at least one bit error.
MODULES (USSI-2) > TEST > INJECT
Write security: 4; Read security: 4
Injects errors into transmitted test pattern.
MODULES (USSI-2) > TEST > CLR
Write security: 4; Read security: 4
Clears error counters on test pattern results menu.
61200305L2-1B © 2004 ADTRAN, Inc. 141