HS Long-Range
Handheld Transmitter
Master Development System
User's Guide
Warning:
Some customers may want Linx radio frequency (“RF”)
products to control machinery or devices remotely, including machinery
or devices that can cause death, bodily injuries, and/or property
damage if improperly or inadvertently triggered, particularly in industrial
settings or other applications implicating life-safety concerns (“Life and
Property Safety Situations”).
NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE
SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY
SITUATIONS.
No OEM Linx Remote Control or Function Module
should be modified for Life and Property Safety Situations. Such
modification cannot provide sufficient safety and will void the product’s
regulatory certification and warranty.
Customers may use our (non-Function) Modules, Antenna and
Connectors as part of other systems in Life Safety Situations, but
only with necessary and industry appropriate redundancies and
in compliance with applicable safety standards, including without
limitation, ANSI and NFPA standards. It is solely the responsibility
of any Linx customer who uses one or more of these products to
incorporate appropriate redundancies and safety standards for the Life
and Property Safety Situation application.
Do not use this or any Linx product to trigger an action directly
from the data line or RSSI lines without a protocol or encoder/
decoder to validate the data.
Without validation, any signal from
another unrelated transmitter in the environment received by the module
could inadvertently trigger the action.
All RF products are susceptible to RF interference that can prevent
communication.
RF products without frequency agility or hopping
implemented are more subject to interference. This module does have
a frequency hopping protocol built in, but the developer should still be
aware of the risk of interference.
Do not use any Linx product over the limits in this data guide.
Excessive voltage or extended operation at the maximum voltage could
cause product failure. Exceeding the reflow temperature profile could
cause product failure which is not immediately evident.
Do not make any physical or electrical modifications to any Linx
product.
This will void the warranty and regulatory and UL certifications
and may cause product failure which is not immediately evident.
!
Table of Contents
1
Introduction
2
Ordering Information
2
HS Series Decoder Development Board
3
Using the Development Boards
3
Troubleshooting
4
Security Overview
6
Typical System Setup
7
Using the Optional Keypad Pin
8
Contention Considerations
8
Battery Replacement
8
OTX-***-HH-LR8-HS Button Assignments
9
Assembly Diagram
10
The Decoder Board
15
Installing the Software and Drivers
16
Master Development Software
19
Resources
HS Long-Range Handheld Transmitter
Master Development System
Data Guide
Figure 1: HS Long-Range Handheld Transmitter Master Development System
Introduction
The Linx HS Long-Range Handheld transmitter offers a simple, efficient and
cost-effective method of adding secure remote control capabilities to any
product. This Master Development System gives a designer all the tools
necessary to incorporate the transmitter, LR Series receiver and HS Series
decoder into a product. The Master Development System serves several
important functions:
•
Rapid Evaluation: It allows the performance and features of the
transmitter, LR Series receiver and HS Series encoders and decoders
to be evaluated quickly in a user’s environment.
Range Testing: The transmitter and receiver board form a full remote
control system so that the range performance can be evaluated.
Design Benchmark: The boards provide a known benchmark against
which the performance of a custom design may be judged.
Application Development: An onboard prototyping area allows for the
development of custom circuits directly on the development board. All
signal lines are available on a header for easy access.
•
•
•
The Master Development System includes 2 HS Long-Range Handheld
transmitters, 2 LR Series receivers*, 2 HS Series decoders*, 1 receiver /
decoder development board,1 CW Series antenna, demonstration software
CD and full documentation.
*One part is soldered to the board, one extra is for use on your first prototype board
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Revised 9/8/14
Ordering Information
Ordering Information
Part Number
MDEV-***-HH-LR8-HS
Description
HS Long-Range Transmitter Master Development System
Using the Development Boards
After unpacking the development system, attach an antenna to the
decoder board, install the 9V battery and turn on the power switch.
The
encoder and decoder are set at the factory to work straight out of the
box.
To create a new operational setup, follow these steps:
1. On the decoder board, press and hold the LEARN button and then
press the CREATE_KEY button to enter Create Key Mode. Release
the LEARN button and press the CREATE_KEY button ten times to
generate the KEY.
8
*** = 315, 418 (Standard) or 433.92MHz
Figure 2: Ordering Information
HS Series Decoder Development Board
5
2. Press the GET_KEY button on the back of the transmitter to activate
the IR receiver. Hold the back of the transmitter close to the decoder
boards's IR key transfer area until the MODE_IND LED turns on.
3. Set Control Permissions by pressing the LEARN button on the decoder
board.
4. While the decoder's MODE_IND line is flashing, press each button on
the transmitter that is to be granted recognition permission.
9
1
6
7
10
12
2
3
4
17
Figure 3: The HS Series Decoder Development Board
11
15
13
14
16
5. After all the desired data lines have been transmitted, press the
LEARN button again, or wait until the 15 second time-out occurs. The
permissions are now saved in the decoder.
6. Transmit with one or all of the authorized data lines to confirm that the
learn process was successful.
20
18 19
Troubleshooting
If the boards fail to work out of the box, then try the following:
•
Check the batteries to make sure they are not dead and that the
antenna is connected.
Make sure the baud rate switch is set correctly on the decoder board.
Make sure the Encryption Key is set correctly. It is created by
the decoder and must be sent to the encoder before they can
communicate.
Make sure that the Control Permissions are set correctly. If the
transmitter has not been set to use a particular line, then when a
button on the transmitter is pressed, the MODE_IND LED on the
decoder board lights up, but the data line LED does not light up.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
9V Battery
Power Jack
On-Off Switch
Voltage Regulator
QS Series USB Module
Prototype Area
Break-Out Header
RP-SMA Antenna Connector
LR Series Receiver
HS Series Decoder
Data Line LEDs
Indicator LEDs
13. Function Switches
14. LEARN Button
15. SEND_KEY Button
16. CREATE_KEY Button
17. Key Input Jack (for hardwire key
transfer)
18. IR Receiver Enable Button
19. IR Key Transfer Phototransistor
and Diode (for IR key transfer)
20. Key Output Jack (for hardwire
key transfer)
•
•
•
If all of these appear to be in order, then call +1 800 736 6677 or e-mail
techsupport@linxtechnologies.com for technical support.
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Security Overview
The HS Long-Range Handheld transmitter uses the
®
HS Series encoder, which is based on CipherLinx™
technology. CipherLinx™ is a high-security encryption
algorithm and wireless protocol designed for remote
CipherLinx
control and remote keyless entry applications. It
Technology
provides a much greater level of security and many
more features than older technologies on the market,
Figure 4: CipherLinx Logo
such as fixed address or “rolling code” systems.
Additionally, the CipherLinx™ transmission protocol is much more
advanced than the simple PWM method employed by many systems. By
utilizing an advanced serial protocol for data, CipherLinx™ is able to offer
superior noise immunity, greater range, and increased link reliability, all of
which are key factors in a wireless system.
CipherLinx™ never sends or accepts the same data twice, never loses
sync, and changes codes with every packet, not just every button press.
CipherLinx™ encryption is based on the Skipjack cipher developed by
the U.S. National Security Agency (NSA), and is widely considered one of
the most secure ciphers available. There have been no known successful
attacks on the full Skipjack algorithm. Skipjack is a block cipher that has
80-bit keys and 64-bit data blocks. Since each packet is longer that 64
bits, Skipjack is employed in an encryption mode. The particular encryption
mode chosen for CipherLinx™ is based on the CMC encryption mode, so
that the resulting cipher is a special kind of function known as a “strong
PRP” (sPRP). The encryption mode uses several invocations of Skipjack to
encrypt the 128 bits in each message.
The Skipjack algorithm used by Linx has been proven secure and is
not modified to avoid any compromise of strength. CipherLinx™ is far
more than just a Skipjack implementation. CipherLinx's patent-pending
technology combines multiple calls to the encryption algorithm with a
proprietary mixing algorithm. CipherLinx™ encryption, as implemented
in the Linx HS Series, has been independently evaluated by Independent
Security Evaluators (ISE), a respected security firm that is widely
recognized for its expertise in electronic security. They concluded that “the
CipherLinx(
TM
) protocol in the HS Series is well-designed and is an excellent
choice for applications requiring a secure unidirectional link.” ISE’s full
evaluation report can be found at www.linxtechnologies.com. In summary,
CipherLinx™ is a powerful, independently verified, secure encryption
technology that is well-suited to a wide range of applications.
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In addition to this high level of security, CipherLinx™ also offers a number
of features that are unique among remote control products. These include
a large number of data lines, internal key generation, “button level” control
permissions, an optional encoder PIN, as well as the ability for the decoder
to identify the originating encoder. Please refer to the HS Series encoder
and decoder data guides for full details.
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