Linear Satellite Radio DXT 21 EC User Manual

PRODUCT DESCRIPTION  
DXT-21/EC FEATURES  
The DXT-21/EC and DXT-23/EC are battery powered portable The DXT-21/EC is a two-button, one-code transmitter. Pressing  
transmitters designed for use with Linear’s DX Format receivers either the round button on the transmitter’s front, or the small  
at the same frequency. Each transmitter can be used in a limitless button on the transmitter’s top will send the same signal.  
number of wireless remote control applications. Pressing a button  
DXT-21/EC  
DXT-23/EC  
BY  
on the transmitter sends a digitally coded wireless signal to its  
companion receiver.  
PRESS EITHER BUTTON  
TO SEND CODE 1  
The digital DX code format features over a million possible codes.  
RED INDICATOR  
LIGHTS WHEN  
TRANSMITTING  
The DX transmitters are precoded at the factory to unique codes, so  
no field coding is required. Transmitters can send a signal for up to  
10 seconds per activation.  
For versatility, any transmitter code can be programmed into any  
receiver channel. Receivers must be programmed to the  
transmitter code before system testing and operation. Refer to the  
receiver’s instructions for details on programming.  
PORTABLE  
TRANSMITTERS  
Each transmitter is powered from two 3-Volt #2032 lithium  
batteries with an expected battery life of up to 5 years. The red  
test/operate indicator lights during operation and can be viewed  
from the front or the top of the unit. The indicator will glow dimly  
during operation when the batteries get low. It will stop lighting  
altogether during operation when the batteries are below 4.5 volts.  
Operation Instructions  
R&TTE VAEE 27682, EMC, SFT, ETS  
Linear Corporation declares that the apparatus DXT-21/EC & DXT-23/EC complies with  
the essential requirements and other relevant provisions of Directive 1995/5/EC.  
A removable pocket clip and belt clip are provided for each  
transmitter. Either can be attached to the back of the transmitter  
allowing the unit to be clipped to shirt pocket or slid onto a belt.  
(760) 438-7000 • FAX (760) 438-7043  
PRESS BUTTONS FOR A  
MINIMUM OF 2 SECONDS  
The top button on each transmitter can be hidden with the top  
button cover supplied with each unit.  
DXT-23/EC FEATURES  
BATTERY REPLACEMENT  
REMOVE BATTERY  
ACCESS SCREW  
POCKET & BELT CLIP INSTALLATION  
)
The DXT-23/EC is a three-button, four-code transmitter. Pressing  
either of the transmitter’s front buttons sends codes one and two.  
Pressing the small button on the transmitter’s top sends code  
three. Pressing both front buttons together sends code four.  
ATTACH WITH  
THREE SCREWS  
BELT  
CLIP  
PRESS LEFT BUTTON FOR CODE 1  
PRESS RIGHT BUTTON FOR CODE 2  
FLIP  
TRANSMITTER  
OVER  
PRESS TOP BUTTON  
RED INDICATOR  
LIGHTS WHEN  
FOR CODE 3  
TRANSMITTING  
ATTACH WITH  
TWO SCREWS  
POCKET  
CLIP  
SWING BATTERY  
COMPARTMENT OPEN  
REPLACE  
PRESS BOTH  
FRONT  
BUTTONS FOR  
CODE 4  
SIDE UP  
WITH TWO  
TYPE 2032  
BATTERIES  
(FOR ADDED  
SECURITY)  
PRESS BUTTONS FOR A  
MINIMUM OF 2 SECONDS  
BUTTON COVER INSTALLATION  
LINEAR LIMITED WARRANTY  
INTERNATIONAL WARRANTY  
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 profit, or cost of removal, installation, or  
reinstallation. All implied 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:  
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 profit, or cost of removal, installation, or reinstallation. All  
implied 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.  
REMOVE FOUR  
SCREWS TO  
OPEN CASE  
REMOVE  
TOP BUTTON  
Linear Hong Kong 19/F Hounor Industrial Centre, 6 Sun Yip Street Chai Wan, Hong Kong  
Attention: Repairs Department  
REPAIRS POLICY  
All products returned for warranty service require a Return Product Authorization Charges will be made for equipment that is not in warranty, shows customer abuse, or isdamaged  
by the effects of lightning, water, fire, or other abnormal happenings.  
Customer’s equipment sent in for repair may be repaired or replaced with new or remanufactured  
equipment at Linear’s discretion.  
The customer is always responsible for shipping and handling charges to the repairs facility.  
Number (RPA#). Contact Linear Technical Services at 1-800-421-1587 for an  
RPA# and other important details.  
IMPORTANT !!!  
Linear will pay return shipping and handling charges on “in warranty” products shipped back to  
the customer. The customer will be billed for the return shipping and handling charges on “out of  
warranty” products.  
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.  
There will be a 50% expedite fee for any express requests.  
1
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.  
The International Sales Manager must be notified prior to the return of product to Linear. All  
international returns must have anInternationalRepair Authorizationnumber (IRA#). Thenumber  
must be marked on all packages. Failure to do so will cause delays in processing.  
IMPORTANT !!!  
1
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.  
Linear radio controls provide a reliable communications link and fill an important need in portable  
wireless signaling. However, there are some limitations which must be observed. The radios are  
required to comply with local rules and regulations as radio devices. As such, they have limited  
transmitter power and therefore limited range.  
1
1
Changes or modifications to the device may void FCC compliance.  
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 modifications to the device may void regulatory 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.  
Infrequently used radio links should be tested regularly to protect against  
undetected interference or fault.  
1
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.  
REPLACE WITH  
COVER PLATE  
Copyright © 2003 Linear Corporation  
212625 B  
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