Section 150-611-103
Revision 01
Page 11
TABLE 2. SYSTEM OPTION SETTINGS (CONTINUED)
MODE
CHOICE
DESCRIPTION
“LNCD”
B8ZS
Places both the HLU-611 & HRU-612 into their B8ZS modes.
AMI*
Places both the HLU-611 & HRU-612 into their AMI modes.
“FRMG”
AUTO*
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.
UNFR
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.
HAIS
DIS*
Prevents a margin alarm from generating an AIS pattern at either TI interface.
Causes the HiGain system to transmit the AIS signal at both the HLU-611 &
HRU-612 T1 output ports when both of the HDSL loops are not in sync
(LOSW).
1LP
Enables a margin alarm to initiate an AIS condition at each T1 output. Causes
the HiGain system to transmit the AIS signal at both the HLU-611 & HRU-612
T1 output ports when either of the two HDSL loops is not in sync (LOSW) or if a
MARgin alarm occurs.
SAIS
ENA*
Causes the HRU-612 to transmit the AIS signal towards the Network Interface
(NI) when in NREM or Smart-Jack loopback.
DIS
Causes the HRU-612 to transmit the signal from the network towards the NI and
opens and terminates the HRU-612 RCV NI port when an HRU NREM or
Smart-Jack loopback is executed. The AIS signal is off.
CONF
YES
Confirms that all eleven (listed above) operating modes are to be updated to
their current choices.
NO*
Prevents the most recently selected operating mode choices form being
updated. They remain as they were before the system option settings
procedure was entered.
MARgin Alrm
Trsh
0 to 15 dB
The Margin Alarm Threshold can only be set via the RS-232 maintenance port.
It determines the minimum allowable margin below which a minor alarm can
occur.
4 dB*
(Default value)
DS0
BLK
The DS0 blocking option can only be set via the RS-232 maintenance port with
a terminal. The 4-Character HLU-611 front panel only displays the status of
the blocking option. BLK indicates at least one channel is blocked.
NONE*
NONE indicates no channels are blocked.
“xxxx”
Panel Set
Only these options can be set by the front panel. All of the options can only be
set from the RS-232 maintenance port.
*Indicates HLU-611 factory settings. HiGain can be set to these default settings by pressing the SEL button for
6 seconds and then selecting the YES response to the resulting DFLT message.
