ADC Soneplex Broadband System Operation And Maintenance Manual page 282

The inband control code sequences will be recognized either in DS1 framed format (SF or ESF
framing) or in unframed format.
Table 102-1 contains a summary of loopback time-out and control codes. Notice that in the
Default Code column, the inband codes are shown left bit transmitted first and the ESF data link
codes are shown with the right bit transmitted first.
Table 102-1. HDSL Loopback Time-Out and Control Default Codes
NAME DEFAULT CODE
Arming (inband) 11000
Arming (ESF) 0001 0010 1111 1111
Activation (HLXC) 1101 0011 1101 0011
Activation (HRX) 1100 0111 0100 0001
Activation (HLXR) 1100 0111 0100 0010
Deactivation (all 1001 0011 1001 0011
HDSL units)
Loopup time-out 1101 0101 1101 0110
disable
Disarming (inband) 11100
Disarming (ESF) 0010 0100 1111 1111
Arming time-out n/a
Loopup time-out n/a
Note: All codes are programmable.
ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
DETECTION TIME COMMENTS
> 5 seconds The signal is sent inband or over
ESF data link. HDSL units in
disarmed state make the transition
4 repetitions
to armed state. When the inband
arming code is detected, the
smartjack loopup state activates.
> 3 seconds The signal is sent inband. HDSL
units go to loopup state when they
are in armed state. Loopup is
> 3 seconds
activated for selected units.
> 3 seconds
> 5 seconds The signal is sent inband. Units in
loopup state go back to armed state.
> 3 seconds Disable loopup time-out. Active
loopbacks stay up until deactivation
or disarm code is received.
> 5 seconds The signal is sent inband or over
ESF data link. HDSL units are
disarmed.
4 repetitions
2 hours An armed HDSL unit goes to
disarmed state.
Programmable An HDSL unit in loopup goes to
from Version D armed state.
HLXC
TAD-102
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© 2000, ADC Telecommunications, Inc.
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