Overview; Features - ADC HiGain H2TU-C-202 User Manual

LTPH-UM-1208-01
O
VERVIEW
The H2TU-C-202 List 7G (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 1.552 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 standard 200 and 400 mechanics shelves. For a list of compatible shelves,
see "Appendix C - Compatibility" on page
F
EATURES
Standard features include:
• HDSL2 transmission features
– Lightning and 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)
–
Tip and ring reversal detection on HDSL2 loop
–
Sources sealing current when connected to an H2TU-R
•
Front-panel features
– DSX-1 signal access
– Status Light Emitting Diodes (LEDs)
– RS-232 craft port for maintenance terminal connection
• Digital Data Service (DDS) latching loopback
•
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
–
Remote provisioning through TL1 FDL
–
Fractional T1 (FT1) support
• Configuration options
– Selectable DSX-1 pre-equalizer
– Bipolar Violation Transparency (BPVT)
H2TU-C-202 List 7G
54.
June 6, 2003

Overview

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