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Prepare the Site
Coaxial Cable Requirements
75
Coaxial Cable Requirements
To achieve optimal RF performance and to minimize the potential damage of the
F-connectors on the HFC Connector Modules and SIMs, we recommend that you use the
coaxial cable types listed in Table 26.
Table 26: Coaxial Cable Requirements
You can use any of the cable types listed in Table 26 initially. However, if a cable in a
particular F-connector is replaced, we recommend that the you replace it with a cable that
has the same, or larger, center conductor diameter than the original cable. This ensures that
proper contact between the cable conductor and an F-connector is maintained.
If a replacement cable has a smaller center conductor diameter than the original cable—for
example, replacing an RG-6 cable with an RG-59U—the smaller RG-59U cable conductor
might not make adequate contact with an F-connector, which can potentially lead to a partial
or complete loss of the signal.
Characterization of Installation Site
You need to characterize several parameters associated with the installation site prior to the
installation of the CMTS. These parameters relate to specific aspects of the installation site
system, HFC network connections, and CMTS downstream and upstream transmissions. The
information collected allows field engineers to verify that the installation site environment is
compatible with the G10 CMTS. Table 27 is provided to collect information regarding the RF
plant and HFC environment.
Cable Type
Diameter of Center Conductor
RG-59/U
0.57 mm (0.022 in)
RG-59
0.86 mm (0.034 in)
RG-6
1.05 mm (0.041 in)
Содержание G10 CMTS
Страница 8: ... JUNOSg 3 0 G10 CMTS Hardware Guide viii ...
Страница 18: ... JUNOSg 3 0 G10 CMTS Hardware Guide 2 ...
Страница 34: ...G10 CMTS Hardware Overview JUNOSg 3 0 G10 CMTS Hardware Guide 18 ...
Страница 46: ...DOCSIS Module JUNOSg 3 0 G10 CMTS Hardware Guide 30 Figure 12 DOCSIS Module Front Panel HotSwap ...
Страница 55: ... Hardware Component Overview Chassis Control Module 39 Figure 15 Chassis Control Module Front Panel Eth0 ...
Страница 72: ...Chassis Rear Modules JUNOSg 3 0 G10 CMTS Hardware Guide 56 Figure 21 Hard Disk Module Rear Panel C O M Eth ...
Страница 82: ... JUNOSg 3 0 G10 CMTS Hardware Guide 66 ...
Страница 112: ...Rack Mounting JUNOSg 3 0 G10 CMTS Hardware Guide 96 Figure 25 Air Flow Through Chassis ...
Страница 116: ...Rack Mounting JUNOSg 3 0 G10 CMTS Hardware Guide 100 Figure 29 Rack Fully Populated with Three G10 CMTS Chassis ...
Страница 118: ...Install Power Supplies JUNOSg 3 0 G10 CMTS Hardware Guide 102 Figure 30 Power Supply Installation 1 2 ...
Страница 138: ...Connect to Power Sources JUNOSg 3 0 G10 CMTS Hardware Guide 122 Figure 39 DC Power Transition Module ...
Страница 148: ... JUNOSg 3 0 G10 CMTS Hardware Guide 132 ...
Страница 156: ...Upstream RF Measurement JUNOSg 3 0 G10 CMTS Hardware Guide 140 ...
Страница 188: ... JUNOSg 3 0 G10 CMTS Hardware Guide 172 ...
Страница 196: ...Radio Frequency RF Specifications JUNOSg 3 0 G10 CMTS Hardware Guide 180 ...
Страница 202: ...EIA Channel Plans JUNOSg 3 0 G10 CMTS Hardware Guide 186 ...
Страница 203: ... 187 Part 5 Index Index on page 189 ...
Страница 204: ... JUNOSg 3 0 G10 CMTS Hardware Guide 188 ...
Страница 209: ... Index 193 Index V ventilation 69 89 95 101 124 161 162 167 video servers 7 voltage power supply 27 ...
Страница 210: ... Index JUNOSg 3 0 G10 CMTS Hardware Guide 194 ...