User Manual

SRU Installation

2-14 SRU Inst allat ion Manual 17286-1000 Rev. B 03/14/01

Black plugs cover small drain holes in the antenna reflector. Determine the

orientation of the antenna on the pole then remove the plug from the hole at the

bottom of the reflector.

If the SlimLine is horizontally polarized, connect the 90° TNC adapter supplied

with the radio to the TNC connector on the radio. This adapter is required to

provide the necessary clearance to route the coaxial interface cable between the

radio and the mount. Orient the connector pointing downward to prevent

moisture from penetrating the connector.

If the radio is vertically polarized, it does not require the 90º adapter.

Depending on the installation, it is sometimes more convenient to connect the

SAS/radio unit cable to the radio unit prior to mounting.

A jumper consisting of a 1-meter length (40 inches) of LMR240 cable with TNC

and N connectors is provided in the installation kit. When the main cable run

uses LMR400, Netro recommends use of the LMR240 jumper to make the final

connection to the radio from the SAS. (LMR400 requires N connectors. TNC

will not work). LMR240 is more pliable and weighs less than LMR400. You can

connect the LMR240 jumper to the radio prior to mounting the unit. Once the

radio unit has been mounted, you can connect the jumper to the LMR400 cable.

Wrap the joint between the SAS cable and the SL connector with self-

amalgamating weatherproof tape (provided in the radio unit installation kit).

The tape is approximately 12.5 mm (0.5 inch) wide. E nsure that the tape

over-wraps itself by approximately 6 mm (0.25 inch) and that the connectors are

totally covered and thus protected from the elements. Make sure the tape

completely covers the connector and the heatshrink of the cable. The tape

must extend up the cable.