Section 150-231-164
Revision 04
Page 6
TABLE 1. HLU-231 LIST 6D SYSTEM OPTIONS
Mode
Selection
Description
EQL
EXT*
Replaces the internal equalizer with a 12 V
pk-pk
drive source for an external equalizer.
0
Sets the Equalizer to DSX-1 for 0-133 feet.
133
Sets the Equalizer to DSX-1 for 133-266 feet.
266
Sets the Equalizer to DSX-1 for 266-399 feet.
399
Sets the Equalizer to DSX-1 for 399-533 feet.
533
Sets the Equalizer to DSX-1 for 533-655 feet.
LBPK
DIS
Configures the HiGain system to ignore all in-band Smart-Jack loopback commands.
ENA*
Enables the HiGain system to recognize all in-band Smart-Jack loopback commands.
SPLB
GNLB*
Configures the HiGain system to respond to the generic (3/4 in 7) in-band loopback
codes.
A1LB &
A2LB
Configures the HiGain system to respond to the Teltrend addressable repeater in-
band loopback codes.
A3LB
Configures the HiGain system to respond to the Wescom addressable repeater in-
band loopback codes.
A4LB
Configures the HiGain system to respond to the Wescom Mod 1 addressable repeater
in-band loopback codes.
A5LB
Configures the HiGain system to respond to the Teltrend Mod 1 addressable repeater
in-band loopback codes.
PWRF
DIS
Disables powering to the HRU-412.
ENA*
Enables powering to the HRU-412.
ZBTS
ON
Tells the HiGain system that the ESF frame is operating in its Zero Byte Time Slot
Interface (ZBTSI) mode.
OFF*
Tells the HiGain system that the ESF frame is operating in its normal non-ZBTSI
mode.
ESAL
17
Activates (closes) the minor alarm relay contacts on pins 20 & 21 and flashes the red
STATUS LED when 17 Errored Seconds (ES) (17 HDSL cyclic redundancy check
(CRC) errors on either HDSL loop or a total of 17 BPVs) occur within a 24-hour
period.
170
Activates (closes) the minor alarm relay contacts on pins 20 & 21 and flashes the red
STATUS LED when 170 ES (170 HDSL CRC errors on either HDSL loop or a total of
170 BPVs) occur within a 24-hour period.
NONE*
Prevents generation of a minor alarm due to excessive Errored Seconds.
LBTO
NONE
Disables automatic time-out cancellation of all loopbacks.
20
Sets automatic cancellation of all loopbacks to 20 minutes after initiation.
60*
Sets automatic cancellation of all loopbacks to 60 minutes after initiation.
120
Sets automatic cancellation of all loopbacks to 120 minutes after initiation.
Table continued on next page
