ADTRAN AHDSL2 User Manual
Page 7
61221002L2-5B
7
Testing Commands
The H2TU-C testing commands are used to initiate and
terminate loopbacks and disconnect for testing
purposes. Table 8 lists and defines the TL1/Litecraft
testing commands.
NOTE
Before entering loopbacks, the user needs to
remove the card from service. This can be done
with the RMV-HDSL command. The card can
then be restored to service with the RST-HDSL
command.
NOTE
When entering access identification (AID), the
user needs to specify whether a loopback
command is for a C or an R. For example,
AID=RT-1-21-C.
Alarms
The selectable alarm threshold crossing alerts are as
follows:
• SNR margin threshold
• HDSL2 and DS1 15-minute ES, SES, UAS
thresholds
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Table 8. Testing Commands
• HDSL2 and DS1 daily ES, SES, UAS thresholds
• HDSL2 loop attenuation threshold
• DS1 15-minute CV-L, B8ZSS-L, and PDVS-L
thresholds
• DS1 daily CV-L, B8ZSS-L, and PDVS-L
thresholds
The following additional alarm conditions are
provided by the H2TU-C:
• HDSL2 LOSW alarm
• HDSL2 unit failure alarm
• HDSL2 loop continuity alarms
• HDSL2 circuit reset
• DS1 LOS alarm
• H2TU-R AIS, RAI, INCRAI-CI
Power Requirements
When deploying any Litespan H2TU-C, the power
requirements for the application should also be
considered for product mix calculations and
maximum number of Litespan H2TU-Cs within a
channel bank assembly. Use Worksheet PW-1 in the
“Engineering and Planning” section of Alcatel
practice, OSP TL1 Software Documentation, release
7.1 or higher, to determine whether a particular
combination of channel units is within power-drain
specifications.