ADC HiGain HLU-200 List 2D User Manual page 22

Managing the HLU-200
Mode Selection
ESAL 17
170
(a)
NONE
LBTO NONE
20
(a)
60
120
LPBK DIS
(a)
ENA
(a)
SPLB GNLB
A1LB and
A2LB
A3LB
A4LB
A5LB
PWRF DIS
(b)
ENA
DS1 B8ZS
(a)
AMI
AUTO
(a)
FRMG AUTO
UNFR
(a)
HAIS 2LP
1LP
12
Table 6. HiGain System Option Settings
Description
Activates the alarm input signal to the Litespan microprocessor and flashes the red status LED when
17 Errored Seconds (ES) (17 HDSL CRC errors on either HDSL loop or a total of 17 BPVs and FERR)
occur within a 24-hour period.
Activates the alarm input signal to the Litespan microprocessor and flashes the red status LED when
170 ES (170 HDSL CRC errors on either HDSL loop or a total of 170 BPVs and FERR) occur within a
24-hour period.
Prevents generation of an alarm due to excessive Errored Seconds.
Disables automatic time-out cancellation of all loopbacks.
Sets automatic cancellation of all loopbacks to 20 minutes after initiation.
Sets automatic cancellation of all loopback to 60 minutes after initiation.
Sets automatic cancellation of all loopback to 120 minutes after initiation.
Configures the HLU-200 to ignore the 2-in-5 SmartJack loopback command.
Enables the HLU-200 to respond to the 2-in-5 SmartJack loopback command.
Configures the HiGain system to respond to the generic (3/4/5/6 in 7) in-band loopback codes.
Configures the HiGain system to respond to the Teltrend addressable repeater in-band loopback
codes.
Configures the HiGain system to respond to the Wescom addressable repeater in-band loopback
codes.
Configures the HiGain system to respond to the Wescom Mod 1 addressable repeater
in-band loopback codes.
Configures the HiGain system to respond to the Teltrend Mod 1 addressable repeater
in-band loopback codes.
Disables powering to the HRU and/or doubler over the HDSL pairs.
Enables powering to the HRU and/or doubler over the HDSL pairs.
Places both the HLU and HRU into their B8ZS modes.
Places both the HLU and HRU into their AMI modes.
The AUTO mode is not supported. If selected, the DS1 code defaults to AMI.
Configures HiGain 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 HiGain can
also process unframed data in this AUTO mode, it is recommended that the 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 HiGain to operate in an unframed mode. This mode disables the auto framing process and
forces HiGain to function as a transparent bit pipe.
Causes HiGain to transmit the AIS signal at both the HLU and HRU T1 output ports when both of the
HDSL loops are not in sync (LOSW).
Causes HiGain to transmit the AIS signal at both the HLU and HRU T1 output ports when either of the
two HDSL loops is not in sync (LOSW) or if a minor alarm occurs.
February 10, 1999
150-200-124-02, Issue 2
HLU-200 List 2D