ADCP-75-210 • Issue 1 • March 2007
Page 46
© 2007, ADC Telecommunications, Inc.
2.7.3.1 Weatherproofing RF Cables
RF cables should be weatherproofed before being installed. The following materials are
required (customer supplied):
• 3M 8426-9M cold shrink
• 3M Skothkote Electrical Coating 14853
Use the following procedure to weatherproof the RF cables:
1. Prior to connecting the RF cables to either the RAN or antenna, place one 3M 8426-9M
cold shrink kit over the cable end, then connect the cable end to its intended termination
point. Follow the manufacturer’s directions, which are included with each kit.
2. After the cold shrink has been applied, coat the entire length of the cold shrink material
with the 3M Scotchkote Electrical Coating, number 14853.
2.7.3.2 Routing and Securing RF Cables
For cable installation, the following materials are required (customer supplied):
• 10 Type N male plugs (CommScope PN: 540ANM or equivalent)
• Coax cable (CommScope PN: FXL540OPE or equivalent)
• Electrician’s tape
• Water seal
Use the following procedure to route and secure the RF cabling:
1. Measure from the antenna base connectors to the RAN connectors to determine the coax
cable length including service loops and drip loops. Refer to Figure 25 on Page 35.
2. Install the Type N plugs on each end of each of the RF cables.
3. Attach each end of the cables to the appropriate connectors on the antenna base and the
RAN. Refer to Figure 33 and Table 21.
4. Tighten each connector to 20 ft.-lbs.
5. After each connector is tightened, cover the entire connection with electrician’s tape, then
wrap the connection in water seal and finally cover the water seal with wraps of
electrician’s tape.
Note: Read and understand the manufacturer’s instructions prior to using these products.
Note: Right angle connectors may not be needed if there is enough space or if the coax
cable is flexible enough to create a proper bend radius in the cable. Reference the coax
cable manufacturer specifications for allowable bend radii.
Note: A cable sweep test is highly recommended. When testing the RF and GPS coaxial
cables, use a matched load. The VSWR should be 1:1:1. The return loss should be 26.444
dB or better.
