Wegener Communications Switch Unity RF Switch User Manual

Installation/Operation Guide  
UNITY RF Switch Option  
Data, drawings, and other material  
contained herein are proprietary to  
Wegener Communications, Inc., and  
may not be reproduced or duplicated in  
any form without the prior permission  
of Wegener Communications, Inc.  
When ordering parts from Wegener  
Communications, Inc., be sure to include  
the equipment model number, equipment  
serial number, and a description of the part.  
In all correspondence with Wegener  
Communications, Inc., regarding this  
publication, please refer to Manual Number  
800016-13 A.  
First Edition:  
August 2000  
R
WEGENER  
COMMUNICATIONS  
TECHNOLOGY PARK/JOHNS CREEK  
11350 TECHNOLOGY CIRCLE  
DULUTH, GEORGIA 30097-1502  
(770) 814-4000 FAX (770) 623-0698  
 
Page 3  
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  
UNITY500  
UNITY4000  
UNITY4422  
UNITY5000  
J7  
J11  
J11  
J16  
J49  
Page 3 of 6  
800016-13  
 
Page 4  
C. SET RF SWITCH OPTIONS  
1. Set Jumpers on the option card to the dotted position.  
When setting the jumpers, observe that there are three pins on each header. The  
jumper covers two of these pins and connects them together electrically. In one  
position Pin 2 (center pin) is connected to Pin 1, while in the other position Pin 2 is  
connected to Pin 3. Changing the jumpers changes the configuration of the circuit  
board and how the board operates.  
There is a dot on the board near either pin 1 or pin 3 of each jumper. Setting the  
jumper so pin 2 is connected to this pin means the jumper is in the “dotted” position.  
This indicates “Normal” operation of Wegener equipment.  
All three of the jumpers on the RF Switch PWB should be in the “Dotted”  
position.  
D. RE-INSTALLING THE UNIT  
1. Replace the cover and re-install the screws holding it in place. As with the RF  
Switch, tighten the screws but do not overtighten.  
2. Connect the “Output” connector of the RF Switch with the “RF Input” connector of  
the receiver it is installed in with the supplied F-F coax cable. Tighten the F-  
connector “finger tight.” See the Caution below.  
3. Install the unit into the equipment rack, following the cautions and instructions in its  
user manual. Re-install the cables as they were when the unit was removed from the  
rack, with the exception in Step # D2.  
4. Connect the desired RF inputs to the “F” connectors on the RF Switch. Again,  
observe the caution regarding the force required to tighten these connectors.  
Normally, the RF Inputs are configured according to instructions from the Network  
Control, or Uplink. They will need to know which input is connected to which  
connector so they can intelligently control program content.  
* * * WARNING * * *  
When connecting cables to “F” type connectors apply a force of no more than 12 inch lb.  
(Finger tight). Avoid connecting adapters directly to “F” type connectors. Use at minimum  
a 1-foot flexible extension cable between “F” type connectors and adapters.  
E. OPERATION  
To set up and operate a receiver with the RF Switch installed, consult the owner’s manual  
for that unit. See the “Terminal Commands” or “On Screen Display” section for setup  
and control.  
800016-13  
Page 4 of 6  
 
Page 5  
RF Signal In x 4  
Cable from RF Switch  
Out to Tuner In  
screws from  
blockout plate  
Rear  
Module 1  
Mounting  
Bracket  
Hole Used  
If Mounted  
In Module 1  
UNITY4000  
MOTHER  
BOARD  
Tuner  
Hole used if  
Mounted in  
Module 2  
0
1
2
1
J
1
Tuner Board  
J1  
STANDOFFS  
3 in each  
Module area  
Red Line  
P/S  
RF Switch1  
Expansion  
Front  
Figure 1. Typical Two-Connector-Cable Installation  
RF Signal In x 4  
Cable from RF Switch  
Out to Tuner In  
screws from  
blockout plate  
Rear  
Module 1  
Mounting  
Bracket  
Hole Used  
If Mounted  
In Module 1  
UNITY4000  
MOTHER  
BOARD  
Tuner  
Hole used if  
Mounted in  
Module 2  
1 0  
2
J 1  
Tuner Board  
1
Red Line  
J1  
STANDOFFS  
3 in each  
1
Module area  
P/S  
1
RF Switch  
Expansion  
Tuner Board  
Connector  
Front  
Figure 2. Typical Three-Connector-Cable Installation  
Page 5 of 6  
800016-13  
 
Page 6  
SERVICE RETURN ADDRESS  
Service Department RMA# ________  
Wegener Communications, Inc.  
359 Curie Drive  
Alpharetta, GA 30005  
SERVICE CONTACT NUMBERS AND ADDRESSES  
Voice: (770) 814-4057  
FAX: (678) 624-0294  
800016-13  
Page 6 of 6  
 

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