Digital, Transmitter, Code Setting, Instructions, A

D-22D

TRANSMITTER DESCRIPTION

D-22D transmitter switch key 1 is unused and can be set in

The D-22D is a two-button, two-channel hand-held digital radio

any position. The transmitter pushbuttons control the signal that

transmitter with a special lock-out feature. The transmitter can

would normally be controlled by switch key 1. Pressing either

perform a variety of remote switching tasks when used with any of

pushbutton sends a signal as if switch key 1 is OFF. Pressing both

DIGITAL

Linear’s Standard Digital “D” Series Receivers. Typically the

pushbuttons sends a signal as if switch key 1 is ON.

D-22D is used in wireless or hybrid wireless/hardwire security

✶ CAUTION: All Standard Digital transmitters and receivers should be

TRANSMITTER

systems.

recoded prior to installation and operation.

The transmitter is powered by a 9-volt battery. Pressing either

In order to avoid the possibility of duplicating codes in adjacent

button will send a “Channel 1" signal, pressing both buttons will

systems, factory set codes should not be used. In addition, among

Code Setting

send a ”Channel 2" signal. Hold buttons for at least 2 seconds

the valid codes available, four others should not be used. These

to activate the transmitter. The red LED on the face of the

include: all keys set ON or OFF and keys set in an alternating

Instructions

transmitter will glow as the unit transmits and the receiver with the

ON/OFF or OFF/ON pattern.

matching digital code will activate.

The D-22D will transmit as long as a pushbutton is pressed.

The Standard Digital radio format provides up to 256 different

Depending on conditions (interference, obstacles and distance to the

digital codes. The code is set using the 8-position coding switches

receiver) the receiver output may or may not stay activated for as

in the transmitter and receiver.

long as the transmitter is sending a signal.

✶ CAUTION: If using two receivers, be sure they are located at least 10 feet

(619) 438-7000 ∙ FAX (619) 438-7043

apart.

USA & Canada (800) 421-1587 & (800) 392-0123

Toll Free FAX (800) 468-1340

STEP 1

Locate coding switch. Remove the battery access

STEP 2A

Coding for single-channel receivers. Pick any valid

STEP 2B

Coding for two-channel receivers. P i ck an y

door located on the back of the transmitter case. Identify the

combination of OFF/ON codes and set them on switch keys 2-8 in

combination of OFF/ON codes and set them on switch keys 3-8 in

coding switch and note that it has eight positions, with ON and

the transmitter Match the same code on switch keys 2-8 in the

the receiver. Match the same code on switch keys 3-8 in the

OFF clearly marked.

receiver. Set receiver switch key 1 to OFF for the receiver to

transmitter. Set the transmitter switch 2 to OFF. Either button will

activate from either transmitter button (Channel 1). Set receiver

activate Channel 1, both buttons will activate Channel 2.

REMOVE BATTERY

switch key 1 to ON for the receiver to activate only when both

2-Channel receiver switch keys 1 & 2 are unused and can be

ACCESS DOOR

transmitter buttons are pressed (Channel 2).

set in any position.

CODING SWITCHES IN RECEIVER

D-22D CODING SWITCH

CODING SWITCH IN

D-22D CODING SWITCH

RECEIVER FOR

TRIGGERS FROM

TWO-CHANNEL RECEIVER

CHANNEL 1

EITHER BUTTON

MATCH

2-8

SET

1 OFF

CODING

SET

SET KEYS 3-8 TO

MATCH CODE

SWITCH

SET KEYS

1 ON

ANY VALID CODE

ON KEYS 3-8

KEY 1 IS

2-8 TO ANY

RECEIVER FOR

TRIGGERS FROM

KEY 1 IS

SET KEY

KEYS 1 & 2

UNUSED

CODE

CHANNEL 2

BOTH BUTTONS

UNUSED

2 OFF

ARE UNUSED

STEP 3

Test the equipment. Connect the receiver to its power

BATTERY REPLACEMENT

LINEAR LIMITED WARRANTY

source. With relay output receivers, listen for the relay click when

The battery should last 12 to 18 months with normal use. When

This Linear product is warranted against defects in material and workmanship for twelve (12) months. The

the transmitter is activated. A multi-meter can be used to detect

the red LED lights dimly, or not at all when transmitting, the battery

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

activation of relay and solid state output receivers. Operate the

needs to be replaced. Remove the battery access door to change

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

transmitter from various locations to determine the radio range.

the battery. Any type of 9-volt battery can be used. Replace the

arising out of or in connection with use or performance of this product or other indirect damages with

battery door and foam battery pad when finished.

respect to loss of property, revenue, or profit, or cost of removal, installation, or reinstallation. All implied

DCV

warranties, including implied warranties for merchantability and implied warranties for fitness, 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.

For warranty service on Linear equipment return product, at sender’s expense to:

Linear Corporation Repairs Department

2580 Pioneer Avenue, Suite C

REPLACE BATTERY WITH

Vista, CA 92083

MEASURE

IMPORTANT !!!

FRESH 9-VOLT BATTERY

RESISTANCE

VOLTAGE

Linear radio controls provide a reliable communications link and fill an important need in portable wireless

signalling. However, there are some limitations which must be observed.

POWER

✶ For U.S. installations only: The radios are required to comply with FCC Rules and Regulations as Part 15

NORMALLY

POWER

devices. As such, they have limited transmitter power and therefore limited range.

COMMON

✶ A receiver cannot respond to more than one transmitted signal at a time and may be blocked by radio signals

OPEN

OUTPUT

that occur on or near their operating frequencies, regardless of code settings.

✶ Changes or modifications to the device may void FCC compliance.

SHORT

✶ 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

-TO-

dealer, and these facts should be communicated to the ultimate users.

RELAY