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Copyright © 2000 Linear Corporation 217397 A
ACT-31B/34B
MINIATURE
DIGITAL
TRANSMITTERS
Operation
Instructions
DESCRIPTION
Linear’s MegaCode® series of digital transmitters are wireless
radio controls designed for use with MegaCode format receivers.
The MegaCode radio format provides unparalleled security. Each
transmitter is pre-set at the factory to one of over 1,000,000
codes.
The ACT-31B is a single-button transmitter that sends a unique
code to a single device. The ACT-34B is a four-button miniature
transmitter that sends a unique code for each button. Typically, one
button is used to operate a community access gate, another button
can activate an individual’s garage door, the other two buttons can
activate additional automatic doors or other devices.
The transmitters are powered by two Type 2016 “coin cell” batteries.
A 2-part key ring is supplied with the units.
PROGRAM TRANSMITTER INTO RECEIVER
Refer to the instructions provided with the receiver to program
the transmitter into the receiver’s memory. With the receiver in
a programming mode, press the desired transmitter button to
program that button into the receiver.
Linear’s receivers that accept “Block Coding” can be programmed
to accept a user defi ned block of ID codes. These transmitters are
block coded. Each block of transmitters is labeled with starting and
ending block code numbers, along with an optional facility code
number. Refer to the instructions for details on how to program the
block and facility code numbers.
REPLACING BATTERY
(760) 438-7000 • FAX (760) 438-7043
USA & Canada (800) 421-1587 & (800) 392-0123
Toll Free FAX (800) 468-1340
www.linearcorp.com
LINEAR LIMITED 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 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 Corporation 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.
IMPORTANT !!!
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 Industry 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.
12 3
4 5
TWIST A COIN IN SLOT TO
OPEN TRANSMITTER CASE
REMOVE THE BACK OF THE CASE REMOVE THE TWO
BATTERIES
SLIDE IN TWO NEW
TYPE 2016 BATTERIES
BE SURE BOTH PLUS (+)
SIDES ARE FACING AWAY
FROM THE CIRCUIT BOARD
SNAP CASE
TOGETHER
DISCARD BATTERIES
PROPERLY
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