Linear ET-1B Installation Instructions

DXR-702

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ANTENNA
CONNECTOR

CHANNEL 2
PROGRAM
BUTTON

PROGRAM
INDICATOR

CHANNEL 1
PROGRAM
BUTTON

POWER AND
RELAY
TERMINALS

CHANNEL 2

RELAY

NORMALLY
CLOSED

COMMON

NORMALLY
OPEN

CHANNEL 1

RELAY

NORMALLY
CLOSED

COMMON

NORMALLY
OPEN

POWER

INPUT

11-17 VDC
12-16 VAC

1

2

3

4

5

6

7

8

WRONG!

RIGHT

CENTRALLY LOCATE RECEIVER

OR ANTENNA

TRANSMITTERS AT THE OTHER END OF

HOUSE MIGHT BE TOO FAR AWAY

BASEMENT

BASEMENT

RCVR

RCVR

RIGHT

WRONG!

LOCATING A RECEIVER OR ANTENNA

BELOW EARTH LEVEL WILL IMPAIR RANGE

MOUNT RECEIVER OR ANTENNA AS

HIGH ABOVE EARTH LEVEL AS POSSIBLE

90% - 100%

OF FULL POWE

R

65% - 95

%

OF FULL POWE

R

10% - 70

%

OF FULL POWE

R

WALLBOARD AND

WOOD STUD

S

CONCRETE WITH STEEL

REINFORCEMENT OR

METAL LATH AND PLASTE

R

LIGHT CONCRETE

OR BRIC

K

CONSTRUCTION MATERIALS WILL EFFECT RADIO RANGE

BRACKET CAN
MOUNT IN THREE
PLACES

LOCATION

1

LOCATION

2

LOCATION

3

CORNER HOLE IS
SHARED FOR
LOCATIONS 2 &

3

USE SCREWS TO
ATTACH THE
MOUNTING
BRACKET

SNAP RECEIVER
ONTO BRACKET

MOUNTING NOTES:

1. WHEN USING THE LOCAL WHIP
ANTENNA, MOUNT RECEIVER AS HIGH
AS POSSIBLE FOR BEST RADIO RANGE

2. WHEN USING THE LOCAL WHIP
ANTENNA, KEEP RECEIVER AWAY
FROM METAL OBJECTS THAT CAN
DECREASE RADIO RANGE BY
SHIELDING THE SIGNAL

3. IN ALL INSTALLATIONS, KEEP
RECEIVER AND ANTENNA AWAY FROM
MOTORS, FANS AND OTHER
ELECTRICAL DEVICES THAT MAY
CAUSE INTERFERENCE AND REDUCE
RADIO RANGE

SCREW LOCAL
WHIP ANTENNA
ONTO RECEIVER

- OR -

USE REMOTE
ANTENNA

UP TO 25 FEET
OF RG-59 CABL

E

ALLOWED

MODEL
EXA-1000
ANTENNA

ANTENNA NOTES:

1. ANTENNA SHOULD BE MOUNTED
AS HIGH AS PRACTICAL.

2. KEEP ANTENNA AWAY FROM
ELECTRICAL INTERFERENCE
SOURCES.

3. CENTRALLY LOCATE ANTENNA
AMONG THE TRANSMITTERS.

BY

RELAY OPTIONS EFFECT BOTH RELAYS

NOTE:

TO MONITOR DOOR OPEN/CLOSE STATUS WITH DXT-31 TRANSMITTERS,

SET RELAYS TO LATC

H

RELAY ON = DOOR OPEN RELAY OFF = DOOR CLOSED

OTHER TYPES OF TRANSMITTERS WILL LATCH RELAYS ON UNTIL RESET

RECEIVER CIRCUIT BOARD

TERMINALS

JUMPER

WJ1

JUMPER

WJ2

ANTENNA

OPEN CASE
WITH SMAL

L

SCREWDRIVER

NOTE:

IF RELAY OPTION IS GOING TO
BE CHANGED: REMOVE POWER,
CUT JUMPERS, APPLY POWER,
ERASE MEMORY, THEN RE

-

PROGRAM ALL TRANSMITTERS

RELAY OPTION JUMPER WJ1 JUMPER WJ2

1 SECOND LATCH

LATCH UNTIL RESET ++

TOGGLE ON AND OFF ++

4 SECOND LATCH

SOLID SOLID

CUT SOLI

D

SOLID CUT

CUT CUT

BE SURE POWER IS OFF WHEN CUTTING JUMPERS

++ CAN BE RESET BY PUSHING THE PROGRAM BUTTON ONCE

TWO­CHANNEL
DIGITAL
RECEIVER

Installation
Instructions

DXR-702 FEATURES TERMINAL DETAILS CUTTING OPTION JUMPERS

PRODUCT DESCRIPTION

The DXR-702 is a two-channel digital receiver with two isolated
relay outputs designed for use with Linear’s DX Format
transmitters. This receiver can be used in a variety of remote
control applications. When the receiver detects a signal from
a transmitter programmed into its memory, the appropriate
relay output activates. The relays have four optional output
congurations. When the relays are set to latch, the receiver
outputs will follow the open/close door status sent from DXT-31
door/window transmitters.

In a typical installation, the receiver is connected to an alarm
control panel, door strike, camera, high current relay or some
other devices. Transmitters are used to activate or control the
devices. The receiver should be mounted with the supplied
mounting bracket indoors or inside a weather resistant
non-metallic housing.

The digital DX code format features over a million possible
codes. The DX transmitters are precoded at the factory to
unique codes, so no eld coding is required. For versatility,
any transmitter can be programmed into any receiver channel.
Receivers must be programmed to the transmitter’s code before
system testing and operation. Up to 32 transmitters maximum
can be programmed into the receiver. The transmitters can
be split in any number between the two receiver channels.

Receiver channel two is a special channel. If channel two
memory is empty, with no transmitters programmed into it, it
will report low battery signals from any channel one transmitters
capable of sending them. When a low battery transmission is
received, the channel two relay will latch, regardless of how
the option jumpers are set. The relay will remain engaged until
the channel two program button is pressed. The low transmitter
batteries should be replaced before resetting the relay.

The unit can be powered from a 11-17 VDC or 12-16 VAC power
source. The relays’ normally open and normally closed contacts
can switch up to 1 amp at 24 volts AC/DC.

Cutting jumpers select how the relays activate. Four settings
are possible. Both relays will function with the same option. The
factory setting causes the relays to engage for four seconds
each activation. Optionally, the relays can be set to engage for
one second, toggle on with one activation then off with the next,
or latch engaged for door status or until reset by pressing the
program button.

A nine-inch wire whip antenna screws into the receiver’s antenna
connector. Optionally, a remote antenna (Linear EXA-1000) can
be connected to the receiver for greater radio range. The red
program indicator lights during RF reception. The installer can
verify that signals are being sent from transmitters and diagnose
interference problems by viewing the indicator. The indicator also
lights during memory programming/erasing and ashes to count
the number of transmitters in memory.

INSTALLATION TIPS MOUNTING RECEIVER ANTENNA INSTALLATION

TERMINAL CONNECTIONS

N.O.

CO
M

N.C.

N.O.

COM

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

N.O.

CO
M

N.C.

DXR-702 TERMINALS DXR-702 TERMINALS

DXR-702 TERMINALS DXR-702 TERMINALS

DXR-702 TERMINALS

DXR-702 TERMINALS

ALARM PANEL CONNECTION WITH DOOR STATUS

LATCHING RELAY OPTION

ALARM

LOOP

1

N.C. OR N.O.

ALARM

LOOP 2

N.C. OR N.O.

NOTE:

LATCHING MODE
ALLOWS PANEL
TO SHOW DXT-31
DOOR STATUS

AUX.

POWER

ALARM

LOOP

N.C. OR N.O.

TROUBLE

LOOP

N.C. OR N.O.

AUX.

POWER

ALARM PANEL CONNECTION WITH LOW BATTERY REPORTING

LATCHING RELAY OPTION

NOTE:

CHANNEL 2 MUST
BE EMPTY TO
REPORT LOW
BATTERY

ALARM
LOOP

1

N.C. OR N.O.

ALARM

LOOP 2

N.C. OR N.O.

AUX.

POWER

ALARM PANEL CONNECTION FOR PANIC BUTTONS

1 SECOND RELAY OPTION

NOTE:

TRANSMITTERS
WILL AUTO
RESTORE AFTER
1 SECOND

RADIO

POWER

XFMR

AUX.

POWER

XFMR

ACCESS CONTROL CONNECTION

4 SECOND RELAY OPTION

BUZZER

DOOR
STRIKE

EXTERNAL
RE

LAY 1

LOAD

EXTERNAL
RE

LAY 2

LOAD

POWER
SUPPLY

EXTERNAL RELAY CONNECTION

TOGGLE RELAY OPTION

SECURITY CAMERA CONNECTION

LATCHING RELAY OPTION

CAMERA
& VC

R

STILL
CAMERA

POWER
SUPPLY

1. PRESS PROGRAM BUTTON FOR THE
DESIRED CHANNEL AND HOLD FOR ABOUT
TWO SECONDS UNTIL INDICATOR LIGHTS
THEN RELEASE.

2. COUNT THE NUMBER OF INDICATOR BLINKS,
THIS IS THE TOTAL NUMBER OF
TRANSMITTERS PROGRAMMED INTO THAT
CHANNEL.

PUSH UNTIL
INDICATOR LIGHTS

NOTE: DO NOT CONTINUE TO PRESS
BUTTON OR MEMORY WILL BE ERASED

1. ACTIVATE EACH TRANSMITTER,
ONE AT AT TIME.

2. LISTEN FOR RELAY CLICK IN
THE RECEIVER.

3. VERIFY THAT THE DEVICE CONNECTED
TO THE RECEIVER RESPONDS AND THAT
THE PROPER CHANNEL ACTIVATES.

4. TEST PORTABLE TRANSMITTERS IN
VARIOUS LOCATIONS TO DETERMINE
SYSTEM PERFORMANCE.

1. PRESS PROGRAM BUTTON
FOR THE CHANNEL TO ERASE
AND CONTINUE TO HOLD IT
THROUGH THE COUNT OF TH

E

TRANSMITTERS

.

2. CONTINUE TO HOLD TH

E
BUTTON AFTER THE COUNT
UNTI

L THE INDICATOR BLINKS
ONCE FOR CHANNEL ONE,
TWICE FOR CHANNEL TWO
(ABOUT FIVE SECONDS
AFTER THE COUNT).

3. ALL TRANSMITTERS
PROGRAMMED INTO
THAT CHANNE

L

WILL BE ERASED.

PUSH AND HOLD BUTTON
FOR FIVE SECONDS AFTER
THE TRANSMITTER COUNT

1. PRESS AND RELEASE

PROGRAM BUTTON FOR THE

DESIRED CHANNEL.

2. PROGRAM INDICATOR WILL

LIGHT FOR 3 SECONDS IF

THERE IS ROOM IN THAT

CHANNEL'S MEMORY FOR

ANOTHER TRANSMITTER

(32 TRANSMITTERS MAXIMUM

TOTAL ALLOWED BETWEEN

BOTH CHANNELS IN THE

RECEIVER).

3. WITHIN 3 SECONDS, SEND

SIGNAL FROM TRANSMITTER,

PROGRAM INDICATOR WILL

FLICKER AS SIGNAL IS

RECEIVED.

4. REPEAT THE ABOVE THREE

STEPS FOR EACH

ADDITIONAL TRANSMITTER.

MULTI-CHANNEL

TRANSMITTER NOTE

:

EACH RECEIVER CHANNEL CAN
ONLY BE PROGRAMMED TO
ACTIVATE FROM A SINGLE
BUTTON ON A MULTI-CHANNEL
TRANSMITTER. LEARNING THE
SAME BUTTON INTO BOTH
CHANNELS ACTIVATES CHANNEL
ONE ONLY

.

AFTER PUSHING THE RECEIVER'S
PROGRAMMING BUTTON, YOU ONLY HAVE
3 SECONDS TO SEND A SIGNAL BEFOR

E

PROGRAMMING MODE STOPS

BUTTON AND INDICATOR FUNCTIONS

FUNCTION

NORMAL
OPERATION

PROGRAMMING
MEMORY

CHECKING
MEMORY

ERASING
MEMORY

PROGRAM

BUTTON

RELEASES
LATCHED RELAY
FOR CHANNEL
1 OR 2

PRESS AND
RELEASE FOR
CHANNEL 1 OR 2

PRESS FOR
CHANNEL 1 OR 2
UNTIL BLINK AND
RELEASE

FOR CHANNEL 1
OR 2, PRESS AND
HOLD THROUGH
THE COUNT AND
HOLD FOR 5
SECONDS MORE

SYSTEM TESTING ERASING MEMORY LINEAR LIMITED WARRANTY

PROGRAM

INDICATOR

LIGHTS WHEN
TRANSMITTER
IS RECEIVED,
FLASHES WHEN
INTERFERENCE IS
RECEIVED

LIGHTS FOR 3
SECONDS FOR
PROGRAMMING

BLINKS THE NUMBER
OF TRANSMITTERS IN
CHANNEL MEMORY

AFTER BLINKING
COUNT. A PAUSE
THEN A SINGLE
BLINK AS MEMORY
IS ERASED (DOUBLE
BLINK ON CHANNEL 2)

PROGRAMMING MEMORY CHECKING MEMORY

This Linear product is warranted against defects in material and workmanship for
twelve (12) months. The Warranty Expiration Date is labeled on the product. This
warranty extends only to wholesale customers who buy direct from Linear or
through Linear’s normal distribution channels. Linear does not warrant this product
to consumers. Consumers should inquire from their selling dealer as to the nature
of the dealer’s warranty, if any. There are no obligations or liabilities on the part of

Linear Corporation for consequential damages arising out of or in connection
with use or performance of this product or other indirect damages with respect
to loss of property, revenue, or prot, or cost of removal, installation, or
reinstallation. All implied warranties, including implied warranties for merchantability

and implied warranties for tness, are valid only until Warranty Expiration Date as
labeled on the product. This Linear Corporation Warranty is in lieu of all other

warranties express or implied.

All products retur ned for warranty ser vice require a Return Product Authorization
Number (RPA#). Contact Linear Technical Ser vice at 1-800-421-1587 for an RPA#
and other important details.

Linear radio controls provide a reliable communications link and ll an important need
in portable wireless signalling. However, there are some limitations which must be
observed.

• For U.S. installations only: The radios are required to comply with FCC Rules and
Regulations as Part 15 devices. As such, they have limited transmitter power and
therefore limited range.

• A receiver cannot respond to more than one transmitted signal at a time and may
be blocked by radio signals that occur on or near their operating frequencies,
regardless of code settings.

• Changes or modications to the device may void FCC compliance.

• Infrequently used radio links should be tested regularly to protect against
undetected interference or fault.

• A general knowledge of radio and its vagaries should be gained prior to acting as
a wholesale distributor or dealer, and these facts should be communicated to the
ultimate users.

Copyright © 2002 Linear Corporation 220464 A

IMPORTANT !!!