PairGain HiGain HLU-319 Manual page 33

150-319-142-01
Table 3. HLU-319 List 4B System Setting Menu Options (Continued)
Option Parameter
F AUTO*
UNFR
H 2LP*
1LP
M ENA*
DIS
G 0 to 15 dB
4 dB*
* Indicates HLU-319 List 4B factory (default) settings. (Continued)
HLU-319 List 4B
December 22, 1997
Description
Configures the HiGain system to operate in an auto-framing
(Auto) mode in which it continuously searches the input T1
bit stream for a valid SF or ESF frame pattern. This feature is
required for fractional T1 applications (DS0 blocking) where
it insures proper channel time slot alignment. While the
HiGain system can also process unframed data in this Auto
mode, it is recommended that the unframed (UNFR) mode
be used for all unframed applications. Using the Auto mode
for unframed applications runs the risk of detecting
pseudo-valid frame sequences, which can affect the data
integrity.
Configures the HiGain system to operate in an unframed
mode. This mode disables the auto framing process and
forces the HiGain system to function as a transparent bit
pipe.
Causes the HiGain system to transmit the AIS signal at both
the HLU-319 List 4B and HRU-412 List 8B T1 output ports
when both of the HDSL loops are not in-sync (LOSW).
Causes the HiGain system to transmit the AIS signal at both
the HLU-319 List 4B and HRU-412 List 8B T1 output ports
when either of the two HDSL loops is not in-sync (LOSW) or
if a MARGin alarm occurs.
Causes the HRU-412 List 8B to transmit the AIS signal
toward the Customer Interface (CI) when in NREM or
SmartJack loopback.
Causes the HRU-412 List 8B to transmit the signal from the
network toward the CI when an HRU NREM or SmartJack
loopback is executed. The AIS signal is off.
The Margin Alarm Threshold must be set using a dumb
terminal connected to the Craft port. The Margin Alarm
Threshold determines the minimum allowable margin below
which a minor alarm can occur. Note that setting the
threshold to 0 inhibits the margin alarm.
PairGain Engineering - Plant Series
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