Wegener Communications Unity RF Switch - Manual (Page 2)

Page 2
800016-13 Page 2 of 6
1. INTRODUCTION
The UNITY RF Switch is a software-controlled, four-input, single-output, L-band switch. It
allows network and local control of antenna feed selection as well as other signal parameters.
Please read the entire set of instructions before beginning the installation.
2. RF SWITCH KIT INVENTORY
In addition to these instructions, the RF Switch Kit will consist of one (1) each of the following
items:
•
RF Switch mounted in a bracket,
•
Ribbon Cable (To connect the Switch to the Receiver Expansion Bus)
•
Small Philips Screw, self-tapping (To secure the switch PWB to the chassis bottom)
•
F-F coax cable
3. TOOLS REQUIRED
Completion of this installation will require the following tools:
•
#1 Philips screwdriver
•
#2 Philips screwdriver
4. INSTALLATION
There are two variations of this installation. One is for units that already have a cable from the
RF Switch Expansion Bus connector to a connector on the Tuner Board. The other is for units
without this cable. The Expansion Bus may also be labeled as the Relay Expansion Bus.
If your unit has the Expansion Bus/tuner cable already installed, make sure there is a 3-connector
cable in your kit. If there is not, contact Wegener Communications Customer Service (See rear
cover for numbers.) before continuing this installation.
To install the RF Switch Option Card, follow these steps:
A. PREPARE THE UNIT
1. Note the cables and connections for re-installation.
2. Power down the receiver.
3. Move it to a work area.
4. Remove the top cover. Retain the screws for re-installation.
Note: Use the #2 Philips screwdriver for most screws, but some units have #1 Philips
screws in one or more locations. On the UNITY401R, remove the 4 screws
through each of the mounting brackets in addition to the 2 screws on the rear,
and the #1 Philips screw in the top.