December 22, 1997
Section 150-219-100-02
HDU-217/219 and
HCC-239 List
1
Page 3
Figure 2. Mini Doubler Block Diagram
Compatibility
These HiGain mini doublers operate with any number of other T1,
POTS (Plain Old Telephone Service), Digital Data Service (DDS), or
other HiGain systems sharing the same cable binder group.
A list of HDSL signal cable losses for various cable gauges at 196
kHz and 135 Ohms is shown in Table 1. The table applies to the
HDSL cable pair between the HLU-D41 and the HDU as well as
between the HDU and the HRU-512.
Table 1. HDSL Signal Cable Loss
Cable Gauge
Ohms/Thousand
Feet (0.3048 km)
Loss @ 196 kHz
(dB/thousand ft)*
26 AWG/0.4 mm
83.3
3.880
24 AWG/0.51 mm
51.9
2.841
22 AWG/0.61 mm
32.4
2.177
19 AWG/0.91 mm
16.1
1.535
*Add 3 dB for each bridged tap and 1 dB for each cable gauge change.
