Comtech EF Data RCF6001 - Manual (Page 61)

RCF6001 Satellite Terminal ODU Installation
TM082 - Rev. 1.0 Page 5-15
loss foam dielectric cable such as Belden 9914 is required. Such cable must have an insertion loss
of less than 6 dB per 100 feet at 1 GHz and a center conductor DC resistance of less than 0.12
ohms per 100 feet.
Step 36. Refer to Table 4-2, IDU to ODU Interface Cable Requirements.
Failure to use the lower loss cable for extended lengths will result in significant reduction in
ODU output power and excessive signal distortion.
Table 4-7 IDU to ODU Interface Cable Requirements
Cable Type Impedance Loss per 100 Meters
RG-214
50 Ohms
36.6 dB
Belden 8214 50 Ohms 23.0 dB
Belden 9914 50 Ohms 19.7 dB
General Cable Installation Considerations
General guidelines to ensure that the IDU to ODU Coaxial Cables are properly prepared and
installed are listed below:
1) Plan the route that the IFL cables will follow. Plan the route to minimize the cable length
between the IDU and ODU. Keep in mind that approximately five feet at both ends should
be added for drip loops and service loops.
2) Ensure that a strain relief is added to both cable connections.
3) Ensure that the external connector is sealed and waterproofed.
4) When running the cable between the IDU and ODU, follow standard installation practices.
Avoid sharp corners. Secure the cable to the tower members, cable runways or other using
hangers or manufacturer’s approved tie-wraps at one meter (three-foot) intervals.
5) Ensure that the center pin of the type “N” male connector does not protrude beyond the
inner metal ground shield. An improper terminated cable will damage the mating
connectors of the IDU and ODU.
Mounting the Typical 5-Watt C-Band Outdoor Unit
The following diagram and instructions pertain to mounting a 3100 Series C-band ODU and
LNB to an antenna using a Radyne ComStream supplied mounting plate. The mounting plate
along with the miscellaneous hardware kits are not provided with the system unless specified or
requested per the USER purchase order.