
DXS-64
SUPERVISED 
EMERGENCY 
TRANSMITTER
Operation 
Instructions
USA & Canada (800) 421-1587 & (800) 392-0123
Toll Free FAX (800) 468-1340
(760) 438-7000
www.linearcorp.com
The Model DXS-64 is a battery powered, miniature, water-resistant*, supervised 
PRODUCT DESCRIPTION
BY
transmitter designed for use in emergency applications with Linear’s DX and DXS 
format receivers. The transmitter is supplied with a nylon pendant necklace with a 
breakaway feature for added safety. Pressing the button on the transmitter sends 
a digital coded wireless signal to its companion receiver. To insure sending 
a complete signal, press the transmitter button for a minimum 
of two seconds.
The DXS-64 transmitter is factory set to a unique code, so no fi eld coding is 
required. The DXS-64 sends a signal when its button is pressed. The transmitter 
can send a signal for up to 30 seconds per activation. The red signal indicator on 
the transmitter lights when the unit is activated. 
If status transmissions are enabled, they will be sent every two hours. Some 
receivers are able to use these signals, others are not. 
Every two hours the transmitter tests for a low battery. This test takes place even if 
status transmissions have not been enabled. If the battery tests low, a low battery 
signal is sent and the transmitter LED fl ashes. 
Receivers must be programmed to the transmitter’s code before system testing 
and operation. Refer to the receiver’s instructions for details on operation and 
programming. 
Each transmitter is sealed to provide water-resistance. The unit’s battery is not 
replaceable. The transmitter should be discarded at the end of its battery life.
* NOTE: Water resistance not tested by UL
FEATURES
NYLON
NECK 
CORD
SIGNAL 
INDICATOR
ACTIVATION
BUTTON
STATUS OPTION & PROGRAMMING SYSTEM TESTING LINEAR LIMITED WARRANTY
This Linear product is warranted against defects in material and workmanship for twenty-four (24) months. 
IF THE TWO HOUR STATUS TIMER IS DESIRED FOR SUPERVISION, 
PERMANENTLY ENABLE THE TIMER BY PRESSING THE TRANSMITTER 
BUTTON FIVE TIMES IN SUCCESSION WITHIN 3 TO 4 SECONDS.
PROGRAM THE TRANSMITTER INTO THE RECEIVER BY PLACING THE 
RECEIVER INTO PROGRAM MODE. THEN SEND A SIGNAL TO THE RECEIVER 
FROM THE TRANSMITTER. REFER TO THE RECEIVERS PROGRAMMING 
INSTRUCTIONS FOR DETAILS.
THE MANUFACTURER STRONGLY RECOMMENDS THAT YOU 
TEST SECURITY EQUIPMENT FREQUENTLY. OVER A PERIOD OF 
TIME, NO ELECTRONIC PRODUCT IS BETTER THAN THE 
INSPECTION AND MAINTENANCE IT RECEIVES. THEREFORE, 
FROM THE TIME OF INSTALLATION, IT IS ABSOLUTELY 
NECESSARY TO TEST THE SYSTEM AT LEAST ONCE A WEEK.
IMPORTANT! TEST SYSTEM WEEKLY
PLACE THE RECEIVER IN "TEST" MODE 
AND ACTIVATE THE TRANSMITTER. 
VERIFY THAT THE SIGNAL IS RECEIVED 
AND THAT THE SYSTEMS REPORTS AS 
REQUIRED.
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 LLC 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 profi t, or cost of removal, 
installation, or reinstallation. All implied warranties, including implied warranties for merchantability and  
implied warranties for fi tness, are valid only until Warranty Expiration Date as labeled on the product. This 
Linear LLC Warranty is in lieu of all other warranties express or implied.
All products returned for warranty service require a Return Product Authorization Number (RPA#). Contact 
Linear Technical Services at 1-800-421-1587 for an RPA# and other important details.
Linear radio controls provide a reliable communications link and fi ll an important need in portable wireless 
signaling. 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 modifi 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. 
This device complies with FCC Part 15 and Canada Rules and Regulations. Operation is subject to the 
following two conditions: (1) This device may not cause harmful interference and (2) this device must 
accept any interference received, including interference that may cause undesired operation. 
Copyright © 2005 Linear LLC  224801 A
IMPORTANT !!!
SNAP 
CORD
RELEASE
ADJUSTMENT
CORD
LENGTH