Installation, Support, and Maintenance Guide
61
Evolution
X1 Satellite Router
Appendix
B Preparing the
Coax Cable
Use high quality coaxial outdoor cable to connect the Evolution
X1 Satellite Router to the
Outdoor Unit (ODU) equipment. iDirect recommends that a solid copper center conductor,
coaxial cable be used with a minimum of 60% + 40% braid and double foil shield to connect the
equipment, such as:
•
RG-6 — 0.04 inch (1 mm), outdoor rated, Quad Shielded, solid bare copper center
conductor, for cable lengths less than or equal to 225 feet (68.5 meters)
•
RG-11 — 0.064 inch (1.6 mm), outdoor rated, Quad Shielded, solid bare copper center
conductor, for cable lengths less than or equal to 400 feet (121.9 meters)
Before connecting the cables, connectors on each end must be installed.
The center conductor must be straight and extend 1/8 inch (3.2 mm) beyond the end of the F-
connector, and the connector should be securely crimped to the cable.
If different types of coaxial cable are used other than the recommended quad shield RG-6,
the following problems can occur:
•
Co-channel Interference
– If signals at the same frequency are carried on long, parallel
runs of coaxial cable (for example, in cable trays, or riser) interference can occur
between the signals
•
Higher quality cable helps to prevent this with better shielding. Co-channel interference
causes degradation and higher packet loss rate
•
Good return loss
– High quality cable and correct connectors help ensure an optimal
return loss of 10 dB or more
Excessive DC Resistance – will result in excessive voltage drop across the IFL cable. Hence, the
voltage at the BUC may be too low to operate properly.
NOTE:
The procedures in this section, for preparing outdoor coaxial cables, are
meant to be generic. Cables and connectors should be installed per
manufacturer’s requirements specific to the brands preferred. In general, specific
and detailed instructions are for RG-6 cables and connectors, only.
NOTE:
iDirect does not recommend using RG-59 with solid bare copper center
conductor. RG-6 or RG-11 Quad Shield or other outdoor quality, 75-ohm type of
coax can be used.
Summary of Contents for Evolution X1
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