ADC H4TU-C-231-L5A User Manual page 23

LTPH-UM-1253-01
Standard Config Menu
Options
Loopback Timeout (LBTO)
Loop Attenuation Threshold
(LATT)
Margin Threshold (MARG)
DS1 Frame Formatting
(FRMG)
DS1 Line Coding (DS1)
H4TU-C Equalization
See "H4TU-C Equalization
(EQL) Option." on page 17
H4TU-R Line Buildout (RLBO)
Alarm Pattern (ALMP)
See "Alarm Pattern (ALMP)
Option." on page 17.
H4TU-R TLOS Loopback
(TLOS)
H4TU-C-231 List 5A
Table 5. H4TU-C Standard Config Menu Options
Selection Description
NONE Disables automatic time-out cancellation of all loopbacks.
20 min Sets automatic cancellation of all loopbacks to 20 minutes after initiation.
60 min Sets automatic cancellation of all loopbacks to 60 minutes after initiation.
120 min Sets automatic cancellation of all loopbacks to 120 minutes after initiation.
8 hr Sets automatic cancellation of all loopbacks to 8 hours after initiation.
24 hr Sets automatic cancellation of all loopbacks to 24 hours after initiation.
0 through Determines the maximum loop attenuation before an alarm is declared. Zero disables
50 dB the alarm. The loop attenuation threshold can only be set through the maintenance
screens.
42 dB Default value.
0 to 15 dB Determines the minimum allowable margin below which a system alarm can occur.
Zero disables the alarm. The Margin (Alarm) Threshold can only be set through the
maintenance screens.
4 dB Default value.
AUTO Configures the HDSL4 system to operate in an auto-framing (AUTO) mode in which
it continuously searches the input DS1 bit stream for a valid SF or ESF frame pattern.
Both line and path performance parameters are maintained. Unframed payloads will
cause the ES-P and SES-P counters to increment.
SF Configures the HiGain HDSL4 system to search for the SF framing pattern at its DS1
input.
ESF Configures the HiGain HDSL4 system to search for the ESF framing pattern at its DS1
input.
UNFR Configures the HDSL4 system to operate in an unframed mode. This mode disables
the auto framing process and forces the system to function as a transparent bit pipe.
Only line parameters are considered when monitoring DS1 performance.
B8ZS Places both the H4TU-C and H4TU-R into their B8ZS modes.
AMI Places both the H4TU-C and H4TU-R into their AMI modes.
EXT Disable the HDSL4 internal equalizer, allowing connection of external equalizer
hardware.
0 ft Sets the equalizer to DSX-1 for 0 to 132 feet.
133 ft Sets the equalizer to DSX-1 for 133 to 265 feet.
266 ft Sets the equalizer to DSX-1 for 266 to 398 feet.
399 ft Sets the equalizer to DSX-1 for 399 to 532 feet.
533 ft Sets the equalizer to DSX-1 for 533 to 655 feet.
Sets the DS1 receive level output toward the Customer Interface (CI). H4TU-R Line
Buildout can only be set through the maintenance screens.
0 dB Sets the DS1 RLBO level toward the CI to 0 dB.
-7.5 dB Sets the DS1 RLBO receive level toward the CI to -7.5 dB.
-15.0 dB Sets the DS1 RLBO receive level toward the CI to -15.0 dB.
AIS Enables the HDSL4 system to output an AIS payload at its DS1 ports for LOSW and
DS1 LOS. For priority resolution, see
LOS Enables the HDSL4 system to output an LOS condition at its DS1 ports for LOSW
and DS1 LOS.
ENA Enables a logic loopback at the H4TU-R when an LOS occurs at its DS1 input, if
enabled at the H4TU-R. For priority resolution, see
DIS Disables Transmit Loss of Signal (TLOS) logic loopback.
October 15, 2003
Figure 26 on page 41.
Figure 26 on page
Provisioning
41.
Continued
15