User manual Linear XR-D

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1
. PRODUCT DESCRIPTION  
2. OPEN RECEIVER  
WARNING: THIS  
PRODUCT SHOULD NOT  
BE USED IN LIFE  
Linear’s Xtended Range FM receivers and transmitters are designed for use in various  
wireless remote control applications. The Model XR-D serial data output receiver is used for  
specialty O.E.M. data acquisition and processing systems. When the Model XR-D receiver  
detects a signal from its companion transmitter(s), it will output 9600 baud ASCII serial data  
through its RS-232 style interface in “real-time” (no buffering) as the transmitted data is  
received.  
XR-D  
SAFETY APPLICATIONS.  
FCC Rules allow  
unlicensed high-power  
transmissions at or near  
the operating frequency  
of this product which  
may interfere with, or  
even disable, normal  
operation of this radio  
device.  
XTENDED RANGE  
SERIAL DATA  
OUTPUT  
REMOVE FOUR  
CASE SCREWS AND  
SLIDE OUT CIRCUIT  
BOARD  
The XR-D receiver’s serial data output contains all of the information that can be sent from  
any type of Linear’s Xtended Range transmitters. In a typical installation, the receiver’s output  
terminals would be connected to a computer through a user supplied custom made cable.  
The computer would run user supplied software written to suit the needs of the application.  
It could display and log the transmitted unit number, channel number, bank number, alarm  
state, battery condition, status reports, and transmitter type. Alternately, the XR-D could be  
connected directly to a line printer for specialty or diagnostic purposes.  
SUPERVISED  
STATIONARY  
RECEIVER  
Power for the XR-D receiver can come from an external regulated 12 VDC power supply  
(Linear Model T-124DC) or from a 12-volt battery. A diode protects the unit from reverse  
power polarity. The XR-D draws about 30 mA current.  
For Use With Linear’s  
XR Series Xtended  
Range Transmitters  
REFERENCE  
CARD FITS IN  
1ST SLOT  
Two antennas (sold separately) are available for the XR-D. The Model ANT-1A is an 8-inch  
“rubber duck” antenna for short range applications (less than 1 mile). The ANT-1A requires  
a CON-180A (straight) connector to mate the antenna to the transmitter. For a right angle  
antenna, use the CON-180A plus the CON-90A.The Model ANT-2 is a 3-foot whip antenna  
for use in long range or difficult installations where more range from the XR-D is required. A  
common 9-foot 1/4 wave CB whip antenna can also be used with the XR-D for maximum  
range.  
Installation  
Instructions  
BOARD FITS IN  
3RD SLOT UP  
The receiver is housed in a rugged weather-resistant metal enclosure with a sturdy SO-239  
antenna connectorandawater-tightwiringstrainreliefbushing.Twoindicatorsarevisiblethrough  
a window on the case. The green power indicator lights when the receiver has power. During  
reception, the red RF indicator lights. A two-position single-packet option jumper allows selection  
of one round of only new data for each transmission or all data sent for each transmission. Two  
internal test points are provided for signal strength and audio monitoring.  
END CAP STAYS  
ATTACHED TO  
THE CIRCUIT  
BOARD  
CASE SCREWS  
(760) 438-7000 • FAX (760) 438-7043  
Data Specification:  
Baud Rate: 9600  
Stop Bits: 1  
USA & Canada (800) 421-1587 & (800) 392-0123  
Toll Free FAX (800) 468-1340  
www.linearcorp.com  
Parity: None  
3
. COMPONENT LOCATIONS  
SINGLE-PACKET OPTION JUMPER  
4. INSTALLATION TIPS  
5. MOUNT RECEIVER CASE  
If using the ANT-1A antenna: For best range mount the XT/XR unit to a metal plate with a  
minimum size of 12" x 12". The ANT-1A antenna should extend above the mounting plate  
and be free of obstructions. If the ANT-1A antenna cannot be mounted in the open, consider  
using an extension coaxial cable with PL-259 connectors to move the antenna’s location.  
ANTENNA  
(
USE AS SHOWN FOR NEW DATA ONLY PACKET  
PER TRANSMISSION, PLACE ON  
OTHER PINS FOR ALL PACKETS  
FOR EACH TRANSMISSION)  
CONNECTOR  
3-FOOT  
ANT-2  
ANTENNA  
USE ANT-1A ANTENNA FOR  
SHORT RANGE APPLICATIONS  
(LESS THAN 1 MILE)  
(HIDDEN)  
The XT/XR series of radios operate in the 27 MHz Citizens Band (CB) and may use any CB  
antennas or CB antenna accessories. Antennas, PL-259 extension cables and other adapters  
are available at Radio Shack® or other electronics stores.  
RIGHT ANGLE  
CONNECTOR  
(CON-90A)  
UNIVERSAL  
MOUNTING BRACKET  
TEST  
BUTTON  
8
ANT-1A  
ANTENNA  
-INCH  
18-FOOT CABLE  
RF SIGNAL  
INDICATOR  
RED)  
STRAIGHT-THRU  
CONNECTOR  
USE ANT-2 ANTENNA FOR MAXIMUM  
RANGE OR DIFFICULT APPLICATIONS  
MOUNT UNIT WITH  
TWO BOTTOM SCREWS  
(CON-180A)  
(
(
SCREWS UNTIL WIRING  
IS COMPLETE)  
DON'T INSTALL TOP  
GOOD INSTALLATION  
BAD INSTALLATION  
LINE-OF-SIGHT  
BETWEEN THE  
TRANSMITTER AND  
RECEIVER ANTENNAS  
WILL PROVIDE THE  
BEST RANGE  
ANTENNAS ARE MOUNTED  
VERTICALLY, ON HIGH POINTS  
OF BUILDINGS  
TRANSMITTING THROUGH  
STRUCTURES, METAL AND  
GEOGRAPHIC OBSTACLES WILL  
REDUCE RADIO RANGE  
MOUNT ANTENNA AS HIGH AS POSSIBLE  
GOOD ANTENNAS NEED GOOD GROUNDS  
METAL ROOF  
OK  
UNIT SHOULD BE  
POWER  
INDICATOR  
FAIR  
MOUNTED IN SHELTERED  
LOCATION WITH ACCESS  
TO ANTENNA CO-AX AND  
POWER/SIGNAL WIRES  
3'  
(GREEN)  
SIGNAL GROUND  
LEVEL  
9
FEET  
POOR  
AUDIO  
OUTPUT  
AT LEAST 9 FEET  
ABOVE GROUND IS  
RECOMMENDED  
WHEN MOUNTING ON  
THE SIDE OF A  
STRUCTURE, USE A  
MINIMUM OF A 3-FOOT  
SPACER TO DISTANCE  
THE ANTENNA FROM  
THE STRUCTURE  
IDEALLY, A GROUND  
PLANE WITH A RADIUS  
OF NINE FEET MINIMUM  
IS DESIRED  
TEST POINTS  
POWER & DATA OUTPUT  
TERMINAL BLOCK  
ANTENNA LOCATION IS  
OF PRIMARY CONCERN  

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