ADC H2TU-C-388 HiGain, Руководство пользователя, Страница: 27 / 76

152-388-115-03, Issue 03 Provisioning
H2TU-C-388 List 1E April 21, 2000 19
Table 5 below describes the Standard Config screen options. Table 6 on page 20 describes the PairGain Config
screen options. Selections in bold typeface are the factory default settings.
Table 5. H2TU-C-388 List 1E Standard Config Screen Options
System Settings
Screen Options
Front-panel
Display
Code
Selection Description
Loopback Timeout 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.
Loop Attenuation
Threshold LATT 0 through
40 dB Determines the maximum loop attenuation before an alarm is declared.
The loop attenuation threshold can only be set through the HiGain HDSL2
maintenance screens.
35 dB Default value. Zero disables the alarm.
Margin Threshold MARG 0 to 15 dB Determines the minimum margin below which a system alarm can occur. Zero
disables the alarm.
The Margin Alarm Threshold can only be set through the HiGain HDSL2
maintenance screens.
4dB Default value.
DS1 Frame
Formatting FRMG AUTO Configures the HiGain HDSL2 system to operate in an auto-framing (AUTO)
mode. It detects and locks to both SF or ESF DS1 frame patterns.
Line and path performance parameters are maintained and displayed.
Unframed payloads will cause the ES-P and SES-P counters to increment.
UNFR Same as the AUTO setting except unframed payloads will NOT cause the ES-P
and SES-P counters to increment.
DS1 Line Coding DS1 B8ZS Places both the H2TU-C and H2TU-R into their B8ZS modes.
AUTO Places both the H2TU-C and H2TU-R into their AUTO framing modes.
AMI Places both the H2TU-C and H2TU-R into their AMI modes.
H2TU-C Equalization EQL 0 Sets the Equalizer to DSX-1 for 0 to 133 feet.
See “H2TU-C Equalization (EQL)
Option.” on page 21 .
133 Sets the Equalizer to DSX-1 for 133 to 266 feet.
266 Sets the Equalizer to DSX-1 for 266 to 399 feet.
399 Sets the Equalizer to DSX-1 for 399 to 533 feet.
533 Sets the Equalizer to DSX-1 for 533 to 655 feet.
H2TU-R Line
Buildout RLBO 0 dB Sets the DS1 RLBO level toward the Customer Interface to 0 dB. H2TU-R Line
Buildout can only be set through the HDSL2 maintenance screens.
-7.5 dB Sets the DS1 RLBO level toward the CI to -7.5 dB.
-15 dB Sets the DS1 RLBO level toward the CI to -15 dB.
Alarm Pattern ALMP AIS Enables the HiGain HDSL2 system to output an AIS payload at its DS1 ports
for LOSW and DS1 LOS.
See Figure 23 on page 45 for LOS/AIS response priorities.
LOS Enables the HiGain HDSL2 system to output an LOS condition at its DS1 ports
for LOSW and DS1 LOS.
H2TU-R TLOS
Loopback TLOS ENA Enables a logic loopback at the H2TU-R when an LOS occurs at its DS1 input,
if enabled at the H2TU-R.
See Figure 23 on page 45 for LOS/AIS response priorities.
DIS Disables TLOS logic loopback.
Network Loopback
Pattern NLBP AIS Enables the H2TU-R to transmit AIS toward the CI for any network loopback.
See Figure 23 on page 45 for LOS/AIS response priorities.
LOS Enables the H2TU-R to transmit LOS toward the CI for any network loopback.