Table 27: Rf Plant/Hfc Environment Characterization - Juniper G10 CMTS Hardware Manual

Characterization of Installation Site
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Table 27: RF Plant/HFC Environment Characterization

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76 JUNOSg 3.0 G10 CMTS Hardware Guide
Parameter
Plant architecture type
Number of optical links within HFC
Distance between optical links within HFC
Amplifier cascade depth from node
Homes passed per node
Total homes passed by installation site
Node combining ratio per port
Average upstream noise measurement (see note below)
Peak upstream noise measurement (see note below)
Passive loss from upstream receiver to CMTS
Maximum tap value used
Maximum tap output level at highest frequency
Maximum drop loss allowed from tap to home
Method used for return path alignment
DOCSIS services offered? If yes, complete Table 28 on page 77.
Upstream frequency spectrum utilization
We recommend that you take a sample of 10 percent of
the total nodes terminated at the installation site for
average and peak noise measurements using the
methodology described in "Noise Measurement
Methodology" on page 83.
Table 28 is provided to collect information regarding the existing DOCSIS services supported
by the installation site. If there are no existing DOCSIS services supported, skip Table 28 and
proceed to subsequent tables. If more than two DOCSIS services exist, additional tables are
provided in "Additional Characterization Tables" on page 85.
Value
____ HFC ____ All Coax
____ max ____ average
____ max ____ average
____ max ____ average
___:1 upstream ___:1 downstream
____ dB
____ dB
____ dB
____ dB
____ dBmV
____ dB
____ yes ____ no
(complete Table 31 on page 81)