Wegener Communications Unity RF Switch B. Install The Rf Switch, Receiver Model, Connector Number

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B. INSTALL THE RF SWITCH

See Figure 1 (Page 5) and Figure 2 (Page 5) of this guide for views of the module and its installation.

1.Remove the block-out plate from the Module where the switch is to be installed. These screws and holes will be used to mount the RF Switch in a later step. Use the #1 Philips Screwdriver for this.

2.From the inside of the unit, install the RF Switch into position. The “F” Connectors should protrude through the rear panel

3.Install one (1) self-tapping screw through the RF Switch Printed Wiring Board (PWB) into the hole in the bottom of the chassis. Leave it loose at this time. Only one screw will be used in this step, and which hole is used will depend on the module slot. This self-tapping screw “cuts” its own threads in the standoff hole, and may require moderate effort to turn it.

4.Line up the two holes in the rear of the RF Switch Bracket with the holes mentioned in Step # B1. Insert the self-tapping screws retained in Step # B1 through the receiver rear panel into the RF Switch Bracket. Tighten these screws snugly, but do not overtighten.

5.Tighten the Screw inserted in Step # B3 at this time. Do not overtighten.

6.Connect the supplied 10-pin cable from J1 on the RF Switch PWB to the appropriate connector on the receiver motherboard. If there is a cable from the RF Switch Expansion Bus to another board (either the Tuner Board or a Relay Board), note its location and remove that cable. Connect the middle connector of the new cable to the same connector on the previously installed Board.

7.On most units, the motherboard connector will be labeled “RF Switch Expansion Bus” or “Relay Expansion Bus,” and should have a number beside it corresponding to the number in the following table. See Table 1, below, for the various models. Make sure Pin 1 (the Red Line) on each cable connector goes to Pin 1 on each board connector. If you have any questions about this, contact system network control or Wegener Customer Service at 770-814-4057. Additional numbers are shown on the rear cover of this installation guide.

Table 1. Receiver Models and RF Switch Expansion Bus Connector Numbers

Receiver Model	Connector Number
UNITY401R	J7
UNITY500	J11
UNITY4000	J11
UNITY4422	J16
UNITY5000	J49

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