ADTRAN 1200305L1 system manual Modules T1/PRI-2/4 Test Remote LB, Modules T1/PRI-2/4 Test Pattern

ATLAS 550 System Manual Section 4, User Interface Guide

MODULES (T1/PRI-2/4) > 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 datalink (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-2/4) > 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-2/4) > 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-2/4) > TEST > CLR

Write security: 3; Read security: 3

Clears error counters on test pattern results menu.

MODULES (T1/PRI-2/4) > TEST > INJ

Write security: 3; Read security: 3

Injects errors into transmitted test pattern.

61200305L1-1F © 2002 ADTRAN, Inc. 129