150-419-100-03>
Overview
HRU-419 List 1
September 25, 1998
1
O
VERVIEW
The ADC
®
HiGain
®
HRU-419 List 1 Remote Unit (HRU), is the remote end
of a repeaterless T1 transmission system. When used with any HiGain Line
Unit (HLU) or HiGain Doubler Unit (HDU) the HiGain system provides
1.544 Mbps on two unconditioned copper pairs over the full Carrier Service
Area (CSA) range. The HRU-419 mounts on a STS-3192 High Density shelf
or in an equivalent remote enclosure manufactured by ADC
Telecommunications.
A basic HiGain configuration is shown in
for a T1 High-bit-rate
Digital Subscriber Line (HDSL) circuit. The HLU is installed at the Central
Office (CO) shelf and the HRU is housed in a remote enclosure at the
Customer Premises Equipment (CPE). Optional HDUs provide the ability to
double or even triple the distance range for customer applications located
outside the CSA.
The HiGain system uses HDSL transmission technology as recommended by
Bellcore TA-TSY-001210. The HRU-419 complies with: ANSI T1E1.4,
T1.403-1989 and 1995, and T1E1.4/92-00R2R technical standards and
recommendations. The system also complies with TR-TSY-000063 Network
Equipment Building System (NEBS) Generic Equipment requirements,
TR-TSY-000499 Transport System Generic Requirements (TSGR) common
requirements, and TR-TSY-000312 Functional Criteria for DSX-1 Interface
Connection.
Figure 1.
Typical HiGain System
HRU-419
HDSL Pair
Span 1
HDSL Pair
Span 2
DSX-1
To CO
DS1 To
CPE
HLU
HiGain CO Shelf
Remote enclosure
Doubler
enclosure
HDU
