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Table 3. Maintenance Terminal Config Menu—Standard Options
Standard Option
Loopback Timeout
(LBTO)
Loop Attenuation
Threshold (LATT)
Margin Threshold
(MARG)
DS1 Frame Formatting
(FRMG)
DS1 Line Coding (DS1)
H2TU-C Equalization
(EQL)
H2TU-R Line Buildout
(RLBO)
Alarm Pattern (ALMP)
H2TU-R TLOS Loopback
(TLOS)
Network Loopback
Pattern (NLBP)
Power Back Off Network
(PBON)
Power Back Off Customer
(PBOC)
(a) Default settings are in bold.
Table 4. Maintenance Terminal Config Menu—ADC Options
ADC Option
Line Power Feed (PWRF)
Remote Provisioning
(RTPV)
Bipolar Violation
Transparency (BPVT)
DS1 BER (DBER)
HDSL2 BER Threshold
(HBER)
Special Loopback Mode
(SPLB)
SmartJack Loopback
(LPBK)
Network AIS Pattern
(NAIS)
Performance Report
Messaging (PRM)
RAI to RAI-CI towards
NET (RACI)
ESF-RAI to SF-RAI
Overwrite (ROVR)
H2TU-R DS1 Frame
Conversion (CONV)
Fractional T1 Mode (FT1)
(a) Default settings are in bold.
Copies of this publication or the user manual (LTPH-UM-1169-xx)
can be downloaded from the ADC website at www.adc.com. To
order a hard copy, please contact your sales representative.
Function
Sets automatic cancellation of all loopbacks to NONE, 20 min, 60 min, or
120 min after activation.
Determines the maximum loop attenuation (0 to 40 dB) before an alarm is
declared. Zero disables the alarm. Default setting is 32 dB.
Determines the minimum allowable margin (0 to 15 dB) below which a system
alarm can occur. Zero disables the alarm. Default setting is 4 dB.
AUTO = system searches DS1 transmission for SF or ESF frame pattern.
SF = sets system for SF frame formatting.
ESF = sets system for ESF frame formatting.
UNFR = system functions as a transparent bit pipe.
B8ZS = sets system for B8ZS line code.
AMI = sets system for AMI line code.
Sets the DSX-1 equalizer to: 0 (0 to 132 ft.), 133 (133 to 265 ft.), 266 (266 to
398 ft.), 399 (399 to 532 ft.), or 533 (533 to 655 ft.).
Sets the DS1 receive level output toward the Customer Interface to 0 dB,
-7.5 dB, or -15.0 dB.
Enables an AIS or LOS output at the DS1 ports for LOSW or LOS DS1.
Enables (ENA) or disables (DIS) a TLOS loopback at H2TU-R for LOS at its
DS1 input (if enabled at the H2TU-R).
Enables the H2TU-R to transmit an AIS or LOS towards CI for any network
loopback.
The power output levels of the H2TU-C network unit toward the customer.
Default (DEF) or enhanced (ENH).
The power output levels of the H2TU-R customer unit toward the network.
Default (DEF) or enhanced (ENH).
Function
Enables (ON) or disables (OFF) HDSL2 line power.
Enables (ENA) or disables (DIS) remote provisioning.
Enables (ENA) or disables (DIS) Bipolar Violation Transparency.
Enables (ENA) or disables (DIS) 24-hour DSX-1 BER alarm threshold.
Sets HDSL2 BER alarm threshold at 1E-6, 1E-7 or NONE.
Configures system for generic (GNLB) or special inband loopback command
(A3LB).
Enables (ENA) or disables (DIS) SmartJack (SMJK) loopback commands.
If ALMP is set to AIS, determines which pattern is sent to the network when a
remote LOS or AIS occurs. CI = AIS-CI sent to the network; AIS = AIS sent to
the network.
OFF = no enhanced Performance Report Messaging, SPRM = Supplemental
PRM, NPRM = Network PRM, S + N = H2TU-R generates both SPRMs and
NPRMs whenever possible.
Enables (ENA) or disables (DIS) conversion of a DS1 RAI signal (yellow alarm)
received by the H2TU-R to an RAI-CI signal toward the network.
Enables (ENA) or disables (DIS) conversion of an ESF DS1 payload from the
network with an embedded RAI pattern to an SF-RAI pattern toward the CI at
the H2TU-R. CONV option must be set to FCON or ACON.
OFF = framing determined by the DS1 FRMG option, ACON = autodetection of
framing and potential frame conversion at the H2TU-R, FCON = autodetection
of framing and forced frame format conversion at the H2TU-R.
Enables (ENA) or disables (DIS) system response to DDS latching loopback
commands for fractional T1 applications, CP disconnect, and trouble
indication.
(a)
(a)
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