Overview; Features - ADC HiGain H2TU-C-388 List 7F Manual

LTPH-UM-1214-02
O
VERVIEW
The H2TU-C-388 List 7F (H2TU-C) line unit is the Central Office (CO) side of a T1 transmission system. The
HiGain HDSL2 product family is fully compliant with the HDSL2 standard ANSI T1.418.
The H2TU-C, when used with an H2TU-R remote unit, transmits a 1.544 Mbps payload on one unconditioned
copper pair over the full Carrier Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24 AWG
wire or 9,000 feet of 26 AWG wire, including bridged taps.
The H2TU-C is designed to mount in Double Dual Module Plus (DDM+) shelves. For a list of compatible shelves,
see "Appendix C - Compatibility" on page
F
EATURES
Standard features include:
• HDSL2 transmission features
–
Enhanced lightning protection
–
Power cross-protection on HDSL2 interfaces
–
Full-duplex HDSL2 transmission on one pair at 1.552 Mbps
–
Ultra-low wander (Stratum 1 compliant)
–
Grounded loop detection on High-bit-rate Digital Subscriber Line 2 (HDSL2)
•
Front-panel features
–
Four character status display
– DSX-1 signal access
– Status Light Emitting Diode (LED)
– RS-232 craft port for maintenance terminal connection
– MODE and LBK pushbuttons for system settings display and loopback activation
–
Dual loopback commands
•
Maintenance screens to provision, monitor, and troubleshoot HDSL2 system
–
DS1 and HDSL2 performance monitoring
–
Loop attenuation and insertion loss reporting
–
Non-volatile storage of performance monitoring parameters
–
Performance Report Messaging (PRM) support for Supplemental PRM (SPRM) and Network PRM
(NPRM) at the H2TU-R
–
Payload (PL) and HDSL Generic (HG) loopback source identification
–
Margin Alarm (MAL) threshold
–
Report menu option for downloading status and performance monitoring data to a file
– 16-bit inband retrieval of margin and pulse attenuation
– Remote provisioning through TL1 FDL or 11-bit inband commands
– Remote access and control of H2TU-R test signal generator
– Remote Frame Ground Status report on maintenance screen and TL1 command
H2TU-C-388 List 7F
67.
July 21, 2003

Overview

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