Applications; Table 1. Hdsl Loss Over Cables - ADC HRU-419 HiGain User Manual

150-419-100-03>
A
PPLICATIONS
The HiGain system provides a cost-effective, easy-to-deploy method for
delivering T1 service over a single metallic pair. Conventional in-line T1
repeaters are not required. Cable pair conditioning, pair separation and
bridged tap removal are not required.
General guidelines require that the loop has less than 35 dB of loss at
196 kHz, with 135 Ω driving and terminating impedances.
guide for the loss of various cable gauges at 196 kHz and 135 Ω. The table
applies to the HDSL cable pairs between the HLU, HRU and HDU modules.
Without specific insertion loss measurement data, add 3 dB for each bridged
tap and 1 dB for each cable gauge change.
The HiGain systems can:
•
operate with any number of other T1, Plain Old Telephone Service
(POTS), or other HiGain systems sharing the same cable binder group.
•
be used with customers requiring T1 service on a temporary or
permanent basis.
•
provide a means of quickly deploying service in advance of fiber-optic
transmission systems.
• easily be installed allowing service to be provided within hours. Fiber
optic systems can be installed at a leisurely pace and cut-over from the
installed HiGain system when convenient to do so. The installed HiGain
system can then be easily removed and utilized elsewhere.
Cable Gauge
26/0.4 mm
24/0.51 mm
22/0.61 mm
19/0.91 mm
HRU-419 List 1

Table 1. HDSL Loss Over Cables

Loss at 196 kHz (dB/kft)
3.88
2.84
2.18
1.54
September 25, 1998

Applications

Table 1 provides a
Ohms per kft
83
52
32
16
3