ADTRAN Atlas 550 System Manual page 127

ATLAS 550 System Manual
M (T1/PRI-2/4) > T
ODULES
Write security: 4; Read security: 5
Sends loopback code to remote CSU. The following options are available:
Selection
AT&T I
NBAND LINE
ANSI FDL L
INE
ANSI FDL P
YLD
I NIU
NBAND
M (T1/PRI-2/4) > T
ODULES
Write security: 4; Read security: 5
Test pattern to be transmitted out the port. The following options are available:
A
LL ONES
A
LL ZEROS
QRSS
61200305L2-1B
NI CSU
DS1
Line Loopback
Figure 11. T1/PRI Loopback Test Diagram
> R
EST EMOTE
Framing
ESF/D4 Full 1.544 Mbps loopback of the signal received from the network
(metallic loopback).
ESF Full 1.544 Mbps loopback of the signal received from the network.
Initiated through loopback activation transmission over the facility
data link (FDL).
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).
ESF/D4 Full 1.544 Mbps loopback of the signal received from the network
after passing through the T1 framer of the remote unit.
> P
EST ATTERN
Framed ones
Framed zeros
Pseudo-random pattern with suppression of excess zeros
© 2004 ADTRAN, Inc.
T1/PRI
Payload Loopback
LB
Description
Section 4 User Interface Guide
127