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LTPH-UM-1049-02, Issue 2 Appendix A - Specifications
H2TU-C-319 List 4E January 9, 2002 67
LOOP ATTENUATION, INSERTION LOSS, AND REACH
Each loop has no more than 35 dB of loss at 196 kHz, with driving and terminating impedances of 135Ω, as shown
in Table 27 below. This is equivalent to no more than 28 dB loop attenuation.
Table 27. HDSL2 Reach Chart
Cable Gauge
Insertion Loss
(a)
at
196 kHz (dB/kft)
(a) Insertion Loss = 1.25 times loop attenuation
Loop Attenuation
(dB/kft)
Maximum Reach
(kft)
Ω per kft
26/0.4 mm 3.88 3.1 9 83
24/0.51 mm 2.84 2.2 12 52
22/0.61 mm 2.18 1.7 16 32
19/0.91 mm 1.54 1.2 23 16