User's Manual

Ensemble Communications Inc.
6-8 Operator’s Guide to the Fiberless System
IF Cable Installation
WARNING
The RG-6 cable may have -48 VDC across the connector
when it is connected to the CPE. So if for some reason the
CPE has been powered up, power it off before connecting
or disconnecting the RG-6 cable at either end.
Note Belden 9248 (for outdoor) or Belden 82248 (for plenum indoor) are the
only approved RG-6 cable types.
1. Run RG-6 coaxial cable between the CPE and the CPE ODU.
The maximum permissible individual cable run length is 1,000
feet (300 meters). Ensure there is an 18-inch (45 cm) service
loop at each end of the cable.
When required, encase cables in plastic or metal conduit or
cable duct, maintaining a minimum bend radius of two inches
(5 cm).
Note Depending on local codes and the HVAC design of a particular building,
plenum-rated cable may be required.
Normally, cables between the ODU and the CPE indoor equip-
ment should not be spliced. However, if a cable splice cannot
be avoided, use only approved connectors.
2. Label each end of the cable individually with numbers or col-
ors using cable labeling tape. 3M makes a product that is ide-
ally suited for this application.
Cable Terminations The RG-6-type coaxial cable uses a male TNC connector to connect
to the ODU. Follow the instructions from the connector
manufacturer to prepare the cable. Install the connector only with
the recommended crimping tool. (See page 3-10 for recommended
tool.)
1. Install TNC connector on the IF cable.
2. Connect the cable to the lightning suppressor.
3. Make an 18-inch (45 cm) IF jumper cable with a TNC connector
on each end.
4. Install the 18-inch IF jumper cable between the ODU and the
lightning suppressor.