Remote Provisioning; Loopback Process Description B-1 Unframed In-Band 11-Bit Commands - ADTRAN HDSL DDM+ HTU-C Installation And Maintenance Practice

REMOTE PROVISIONING

HDSL circuit provisioning options can be set by using commands sent over the DSX-1
channel. This feature provides the ability to change the circuit configuration from a remote
location. There are two types of commands sets that may be used: Unframed in-band 11-bit
commands and ESF Facility Data Link (FDL) commands.
Loopback Process Description B-1 Unframed In-band 11-Bit
Commands
There are two groups of 11-bit in-band commands:
• ADA Mode Codes
• ADTRAN Mode Codes
The set of commands in
This set of commands consists of over 100 different 11- bit patterns that may be sent over the
DSX-1. Commands exist to set and retrieve the system configuration options, set the time and
date, retrieve and clear performance history information, and to retrieve and clear alarm infor-
mation. This section will only cover those used to set and retrieve the system configuration
options.
For an 11-bit command to be detected, the command must be sent in UNFRAMED mode.
Upon recognition of the pattern, the HDSL circuit will generate a SF-framed all ones signal
toward the DSX-1 interface. The pattern will periodically contain a number of bit errors as a
response to the 11-bit code that was sent. The bit error response can indicate a number of
things such as current configuration information or a successful provisioning change.
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Appendix B
Remote Provisioning
Table B-1 and Table B-2 allow the user to provision the HDSL circuit.
B-1