Instruction manual

61200780L1-1C © 2004 ADTRAN, Inc. 159
ATLAS 800 Series System Manual T3 D&I Option Module
DS1 Test
DS1 Test
Write security: 3; Read security: 5
These options initiate different types of tests and display test results.
Prt Read security: 5
Displays the T1 number.
Loc LB Write security: 4; Read security: 5
Causes loopback on near-end (local) port. See Figure 9 on page 152. The
following options are available:
Remote LB Write security: 4; Read security: 5 - Sends loopback code to remote CSU. The
following options are available:
Pattern Write security: 4; Read security: 5 - Test pattern to be transmitted out the port.
The following options are available:
Options Description
None
No loopback is active.
Line
Loopback without regenerating framing.
Payld
Payload loopback - framing and clocking are regenerated.
Options Description
AT&T Inband line
Works in ESF and D4 mode
ANSI FDL Line
Requires ESF mode
ANSI FDL Payload
Requires ESF mode
Inband NIU
Works in ESF and D4 mode
Options Description
None
No test pattern transmitted
All ones
Framed ones
All zeros
Framed zeros
QRSS
Pseudo-random pattern with suppression of excess zeros