LTPH-TP-1047-01, Issue 1
Overview
H2TU-R-402 List 5E
March 12, 2001
1
O
VERVIEW
The H2TU-R-402 List 5E remote unit is the customer premise side of a transmission system. The HiGain HDSL2
product family is fully compliant with the HDSL2 standard and ANSI T1/418. Providing full-rate T1 access using
just a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture. The open architecture
inherent in HDSL2 guarantees interoperability, allowing simple and economic accommodation of network
growth.
HiGain HDSL2 products provide 1.552 Mbps transmission on one unconditioned copper pair over the full Carrier
Service Area (CSA) range. The CSA includes loops up to 12,000 feet of 24 American Wire Gauge (AWG) wire
or 9,000 feet of 26 AWG wire, including bridged taps.
F
EATURES
Features specific to the List 5E include:
•
Report menu option for downloading status and performance monitoring data to a file
•
Enhanced loopback commands controlled by the LBK option that support
–
100 inband loopdown command
–
100000 (one in six) inband SMJK loopup command
•
Sinks 10 mA of sealing current when connected to a compatible line unit
Standard features include:
•
Line or locally powered with sealing current option
•
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)
•
Front-panel features
–
HDSL and DS1 status Light Emitting Diodes (LEDs)
–
Dual loopback control button
–
DS1 access bridging jacks
–
RS-232 craft port for connection to a maintenance terminal
•
HiGain HDSL2 maintenance screens for inventory, provisioning, and troubleshooting
–
High-performance, non-volatile performance monitoring
–
Non-volatile alarm histories
–
Performance Report Messaging (PRM) support for Supplemental PRM (SPRM) and Network PRM
(NPRM)
–
Payload (PL) and HiGain(HG) loopback source identification
