ATLAS 550 System Manual - Adtran

ATLAS 550 System Manual Section 4 User Interface Guide
MODULES (T1/PRI-1) > TEST > REMOTE LB
Write security: 4; Read security: 5
Sends loopback code to remote CSU. The following options are available:
Selection Framing Description
AT&T INBAND LINE ESF/D4 Full 1.544 Mbps loopback of the signal received from the network
(metallic loopback).
ANSI FDL LINE ESF Full 1.544 Mbps loopback of the signal received from the network.
Initiated through loopback activation transmission over the facility
data link (FDL).
ANSI FDL PYLD ESF 1.536 Mbps loopback of the payload data received from the network
maintaining bit-sequence integrity for the information bits by
synchronizing (regenerating) the timing. Initiated through loopback
activation transmission over the facility data link (FDL).
INBAND NIU ESF/D4 Full 1.544 Mbps loopback of the signal received from the network
after passing through the T1 framer of the remote unit.
MODULES (T1/PRI-1) > TEST > PATTERN
Write security: 4; Read security: 5
Test pattern to be transmitted out the port. The following options are available:
ALL ONES Framed ones
ALL ZEROS Framed zeros
QRSS Pseudo-random pattern with suppression of excess zeros
MODULES (T1/PRI-1) > TEST > QRSS/RLB RESULTS
Write security: 3; Read security: 5
Displays current status of T1 tests including information regarding loopbacks and test patterns. When
displaying test pattern status, the display string is composed of pattern sync status and errored seconds.
NONE No sync.
LOS Sync has been lost.
SYNC Pattern is synchronized.
ES Number of seconds with at least one bit error.
MODULES (T1/PRI-1) > TEST > CLR
Write security: 3; Read security: 3
Clears error counters on test pattern results menu.
MODULES (T1/PRI-1) > TEST > INJ
Write security: 3; Read security: 3
Injects errors into transmitted test pattern.
61200305L2-1B © 2004 ADTRAN, Inc. 109