Page 1
HS Series
Master Development System
User's Guide
Page 2
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”).
Table of Contents
1 Introduction
2 Ordering Information
2 HS Series Encoder Development Board
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 not
have a frequency hopping protocol built in.
3 HS Series Deccoder Development Board
4 Using the Development Boards
4 Troubleshooting
5 The Prototyping Area
6 The Power Supply
6 The Encoder Board
10 The Decoder Board
13 HS Series Master Development System Software
14 Installing the Software and Drivers
15 Resources
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.
Page 3
HS Series Master Development System
User's Guide
Figure 1: HS Series Master Development System
Introduction
The HS Series encoders and decoders are ideal for remote control and
command, security, keyless entry, status monitoring, and a host of similar
applications. They encode the status of eight buttons into a highly secure
serial output for transmission via a wireless link. The Master Development
System gives a designer all the tools necessary to incorporate the encoder
and decoder into a product. This guide shows how to take full advantage
of the development boards included with the system. The Master
Development System serves several important functions:
• Rapid Evaluation: It allows the performance and features of the HS
Series encoder and decoder to be quickly evaluated.
• Design: It shows how to design with the HS Series and how to
interface with other components. It also demonstrates the overall
system function, making it easy to develop the initial system design.
• Prototype Development: It allows for additional circuitry to be placed
directly on the board so that it can act as the first prototype of the
product. All of the signals are available on a wire-wrap header for easy
connection to external circuitry.
This kit includes 2 development boards, 2 HS Series encoders*, 2 HS
Series decoders*, and two CW Series antennas, 1 LR or ES Series
transmitter, 1 LR or ES Series receiver, full documentation and batteries.
The decoder board is populated with 1 QS Series USB module.
*One part is soldered to the board, one extra is for use on your first prototype board.
– –
1
Revised 3/18/2015
Page 4
Ordering Information
Ordering Information
Part Number Description
MDEV-LICAL-HS HS Series Master Development System with LR Series
MDEV-LICAL-HS-ES HS Series Master Development System with ES Series
Figure 2: Ordering Information
HS Series Deccoder Development Board
5
1
8
9
HS Series Encoder Development Board
1
5
2
4
3
Figure 3: HS Series Encoder Development Board
1. 9V Battery
2. Power Jack
3. On-Off Switch
4. Voltage Regulator
5. Prototype Area
6. Break-Out Header
7. Reverse-Polarity SMA Antenna
Connector
8. LR Series Transmitter Module
6
11
9. HS Series Encoder
10. Indicator LEDs
11. Function Switches
12. CREATE Button
13. Data Line Buttons
14. Key Input Jack
15. IR Receiver Enable Button
16. IR Key Transfer Phototransistor
14
6
7
8
9
13
10
12
15
16
2
4
3
Figure 4: HS Series Deccoder Development Board
1. 9V Battery
2. Power Jack
3. On-Off Switch
4. Voltage Regulator
5. QS Series USB Module
6. Prototype Area
7. Break-Out Header
8. Reverse-Polarity SMA Antenna
Connector
9. LR Series Transmitter Module
10. HS Series Decoder
7
13
15
17
11. Data Line LEDs
12. Indicator LEDs
13. Function Switches
14. LEARN Button
15. SEND_KEY Button
16. CREATE_KEY Button
17. Key Input Jack
18. IR Receiver Enable Button
19. IR Key Transfer Phototransistor
and Diode
20. Key Output Jack
11
18
10
12
14
16
19
20
– – – –
2 3
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Using the Development Boards
After unpacking the development system, attach an antenna to each
board, install the supplied 9V battery, and turn on the power switches. The
encoder and decoder are set at the factory and work straight out of the
box. To create a new operational setup, follow these steps:
1. On the decoder board, hold the LEARN button and 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.
2. To use the infrared key transfer, press the IR_RXEN button on the
encoder board to activate the infrared receiver. Hold the IR sections of
the encoder and decoder boards close until the MODE_IND LEDs on
both boards light up.
3. To set Control Permissions, press the LEARN button on the decoder
board.
4. While the decoder’s MODE_IND LED is flashing, press each data line
button on the encoder that is needed for the application.
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.
• Make sure that the Control Permissions are set correctly. If the encoder
is not set to use a particular line, then when the button on the encoder
board is pressed, the MODE_IND LED on the decoder board lights up,
but the data line LED does not light up.
If all of these appear to be in order, then call +1 800 736 6677 or email
[email protected] for technical support.
The Prototyping Area
The prototyping area is the same on both boards and contains a large
area of plated through holes so that external circuitry can be placed on
the board. This circuitry can be interfaced with the HS Series encoder or
decoder through the breakout header to the right. At the bottom of this
area is a row connected to the 3V power supply and at the top is a row
connected to ground.
All of the data lines are connected to a wire-wrap header to the right,
allowing easy access from the prototyping area. The DATA_IN, DATA_OUT,
and TX_ID lines are also available on the header, as well as the PDN lines
from the RF modules. This allows complete control of the entire system
from the prototyping area, giving the designer a great deal of flexibility in
using the boards.
6. Transmit with one or all the data lines held high to confirm that the learn
process was successful.
Troubleshooting
If the boards fail to work out of the box, then try the following:
• Check the battery to make sure it is not dead.
• Make sure that the baud rate switches are set the same on both
boards.
• Make sure that the antenna is connected and has the correct polarity
connector.
• Check to see if the PDN switch is on, placing the encoder and decoder
into Power Down Mode. In most cases, the encoder PDN switch
should be in the up position.
• Make sure that the Encryption Key is set correctly. This key is created
by the decoder and needs to be sent to the encoder before they will
communicate.
– – – –
4 5
Figure 5: The Prototyping Area and Power Supply
Page 6
The Power Supply
The power supply is the same on both boards and consists of a 9V battery
and a power jack connected to a 3.0V voltage regulator. The regulator
can provide approximately 500mA of current to the prototyping area. If
the added circuitry needs more than this, then the designer must add
an external supply. If the circuit consistently draws more than 100mA of
current, it might be better to use the power jack, as the battery may run
down fairly quickly, reducing testing and development time.
Beneath the encoder are two LEDs. D12 is connected to the MODE_IND
line and lights up as described in the HS Encoder Data Guide. D8 is
connected to the TX_CNTL line and provides visual feedback by lighting up
when the encoder sends a word.
Beneath the LEDs is a button that is connected to the CREATE line. This
button is used to create a PIN as described in the HS Series Encoder Data
Guide.
The jack accepts a standard 5.5mm plug with the tip ground and the outer
shell 7 to 16VDC positive supply. A reverse voltage protection diode is
included on the board to protect the circuitry in case the voltage on the
plug is reversed, but it is still a good idea to double-check the polarity.
The Encoder Board
The encoder board has three sections that are of primary interest: the
encoder area, the transmitter area, and the key exchange area.
The Encoder Area
Figure 6 shows the encoder area of the development board.
Figure 6: The Encoder Area
The encoder is located in the center beneath the Linx logo. To the right
are buttons that pull the encoder data lines high when pressed. Button S0
corresponds to data line D0, button S1 to data line D1 and so forth.
There are two function switches to the left of the CREATE button. BSEL0 is
used to set the baud rate of the encoderr as described in Figure 7.
Baud Rate Selection Table
SEL_BAUD0 Baud Rate (bps)
0 4,800
1 28,800
Figure 7: Baud Rate Selection Table
Note: The decoder board must be set to the same baud rate in order
for the signal to be received correctly. The maximum baud rate for the
LR Series is 10,000bps, so only 4,800bps can be used on boards
populated with these modules. The ES Series transmitter can use both
baud rates. If the switch is up, then the line is high, if it is down, then
the line is low.
The PDN switch connects the TX_CNTL line of the encoder to the PDN
line of the transmitter so that the TX Control Mode of the encoder can be
tested. This mode is described in the HS Series Encoder Data Guide.
If BSEL0 is up, then the line is high (1, VCC); if down, then the line is low
(0, GND). If the PDN switch is up, then the encoder’s TX_CNTL line is
connected to the transmitter’s PDN line; if down, it is not connected and
the LR Series transmitter is not be activated unless the PDN line is pulled
high externally. The ES Series transmitter has an internal pull-up, so is
active unless pulled low.
The diodes to the left isolate the data lines from each other while allowing
any line to activate the SEND line.
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6 7
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The Encoder Board RF Area
GND
00k
CC
8
9.1M
0
51k
V
CC
CC
GND
GND
GND
C4
uF
6
9.1M
5
9.1M
R19
0k
5.1M
9.1M
GND
N
C5
0.01uF
GND
GND
CC
SW8
6
6
Figure 8 shows the RF area of the development board.
R1
V
Figure 8: The Encoder Board RF Area
This board can be populated with either the LR Series transmitter (as
shown) or the ES Series transmitter. The LR Series transmitter is placed
on the right side and the ANT1 connector is populated. The ES Series
transmitter is placed on the left and the ANT2 connector is populated.
R27 is connected to the LADJ line of the LR transmitter to reduce the
output power to approximately 0dBm. The LR Series transmitter is capable
of producing more output power than may be legally acceptable, so by
reducing the output power, the range experienced with the evaluation
kit will more closely resemble the range that can be achieved with a final
certified product.
The Encoder Board Key Exchange Area
Figure 9 shows the key exchange area of the development board.
1
To KEY_I
R1
4.7
V
U
R1
1
IR
R2
V
U
-
+
Figure 10: The Infrared Receiver Circuit
The left side of the circuit consists of an op-amp that is set up as a timer
to feed current into the phototransistor for a specific amount of time after
the button is pressed. Since the phototransistor can pick up infrared
radiation from many sources, including lights, this keeps the output from
randomly switching and keeping the encoder awake. This circuit keeps the
phototransistor from constantly pulling current and allows the encoder to
enter sleep mode, preventing it from also constantly pulling full current.
The circuit works in the following way: when SW8 is pressed, capacitor C4
discharges and pulls the negative input of the op amp low. This makes the
output of the op amp go high and supplies current to the phototransistor
(IR1). C4 begins to recharge through R14 as soon as SW8 is released.
At 5.1MΩ, it takes approximately 20 seconds for the voltage to get high
enough to make the output of the op amp go low and deactivate IR1.
Figure 9: The Encoder Board Key Exchange Area
This section allows for both a wire and infrared transfer of the Encryption
Key. The encoder can only receive a key, so only the infrared receiver
and KEY_IN jack are populated. The jack is simply connected directly to
the KEY_IN line on the encoder. The infrared receiver is more complex. A
schematic diagram of this circuit is shown in Figure 10.
– – – –
8 9
The right half of the circuit uses a comparator as a data slicer to make
the output of the phototransistor into a square wave that is easier for the
encoder to read. The output of the comparator is then connected to the
KEY_IN line on the encoder. The Master Development board has a 10kΩ
resistor in series to prevent the jack from shorting the comparator out, but
it may not be necessary in a custom design.
Page 8
The Decoder Board
The decoder board has four main sections of interest: the decoder area,
the receiver area, the USB area, and the key exchange area.
The Decoder Area
Figure 11 shows the decoder area of the development board.
Figure 11: The Decoder Area
The decoder is placed in the center beneath the Linx logo. To the left are
LEDs that are connected to the decoder data lines. These light up when
the decoder receives a signal from the encoder to take the data line high.
LED D0 corresponds to data line D0 and so forth.
Beneath the decoder is an LED that is connected to the MODE_IND line.
This lights up as described in the HS Series Decoder Data Guide.
Note: The encoder board must be set to the same baud rate in order
for the signal to be received correctly. The maximum baud rate for the
LR Series is 10,000bps, so only 4,800bps can be used on boards
populated with these modules. The ES Series receiver can use both
baud rates. If the switch is up, then the line is high, if it is down, then
the line is low.
The Decoder Board RF Area
Figure 12 below shows the RF area of the development board.
Figure 12: The Decoder Board RF Area
This board can be populated with either the LR Series receiver (as shown)
or the ES Series receiver. Both modules can be placed on the same pads
in the center of the section, but the ANT1 connector is populated for the
LR receiver and the ANT2 connector is populated for the ES receiver.
Beneath the LED are three buttons. The one on the left labeled HS_SEND_
KEY is connected to the SEND_COPY line on the decoder. The one in
the middle is connected to the LEARN line, and the one on the right is
connected to the CREATE_KEY line. The HS_SEND_KEY button causes
the decoder to begin sending a copy of its User Data when pressed at the
same time as the LEARN button. The LEARN button is used to set Control
Permissions and, with the other two buttons, to make the decoder enter
special modes. The CREATE_KEY button causes the decoder to create a
new key when pressed at the same time as the LEARN button. All of these
functions are described in detail in the HS Series Decoder Data Guide.
There is one function switch to the left of the CREATE button. BSEL0 is
used to set the baud rate of the decoder as described in Figure 7.
– – – –
10 11
Page 9
The Decoder Board USB Area
The decoder development board has a Linx SDM-USB-QS USB interface
module for use with the included development software. This module is
powered by the USB bus so does not pull any current from the battery.
Figure 13 shows this section.
Figure 13: The Decoder Board USB Area
The microcontroller on the right monitors the decoder data lines and
generates commands that are sent to the development software on the PC
via the QS Series USB module. The RX_IND LED to the left of the module
flashes to indicate that data is being received from the PC, and the TX_IND
line flashes to indicate that the module is sending data to the PC.
The Decoder Board Key Exchange Area
Figure 14 shows the key exchange area of the development board.
HS Series Master Development System Software
The HS Series Master Development System software can be used in one
of two modes. The default mode is as a simulation of the system. This
is a good way of showing how the HS Series can work in a system for
activating lights and doors.
The second mode is for use with the development system. When the
decoder board is plugged into the USB port, the kit can be used to activate
the features in the software. When a data line goes high on the decoder,
the microcontroller sends a command to the computer to control the
functions in the software.
Figure 14: The Decoder Board Key Exchange Area
The KEY_IN jack and the IR receiver circuit are identical to the encoder
board. Since the decoder must also send a key to an encoder and / or
another decoder, the KEY_OUT jack is populated. The infrared portion
consists of an infrared diode (IR2) that is modulated by the KEY_OUT line
of the decoder. When the SEND_KEY and LEARN buttons are pressed and
released, the decoder begins sending the key to the jack and diode. Simply
plug a wire into the KEY_OUT jack on the decoder board and the KEY_IN
jack on the encoder board or activate the infrared receiver on the encoder
board to send the key across.
– – – –
12 13
Figure 15: The HS Series Master Development Software
Clicking the Help label at the top of the window opens the guide for
using the development software. Please see this document for details on
operation of the software.
Page 10
Installing the Software and Drivers
The first time a QS module is plugged into a computer, Windows displays
the Found New Hardware Wizard, which guides the installation of the
drivers. The drivers are included on the CD, so point the wizard to the CD
when prompted. The drivers have not gone through Microsoft’s verification
process, so a message may appear warning of this. Click “Continue
Anyway” to finish the installation process.
Application Note AN-00201 (Installing the SDM-USB-QS-S Drivers)
describes the installation of the drivers in detail. The drivers should be
installed before running the Development Software.
The HS Series Master Development System Software automatically starts
when the CD is inserted and the player in Figure 16 appears.
Exit
Player Screen
View Documentation
Install Software
Play Movie
Selection Keypad
Go to the
Linx Website
Resources
Support
For technical support, product documentation, application notes, regulatory
guidelines and software updates, visit www.linxtechnologies.com
RF Design Services
For customers who need help implementing Linx modules, Linx offers
design services including board layout assistance, programming,
certification advice and packaging design. For more complex RF solutions,
Apex Wireless, a division of Linx Technologies, creates optimized designs
with RF components and firmware selected for the customer’s application.
Call +1 800 736 6677 (+1 541 471 6256 if outside the United States) for
more information.
Antenna Factor Antennas
Linx’s Antenna Factor division has the
industry’s broadest selection of antennas
for a wide variety of applications. For
customers with specialized needs, custom
antennas and design services are available along with simulations of
antenna performance to speed development. Learn more at
www.linxtechnologies.com.
by
Figure 16: Software Installer
The View Documentation button shows a list of the application notes and
manuals related to the HS Series. Selecting one of these opens the file in
Adobe Acrobat. The Play Movie button plays a short video about Linx in the
Player Screen, which can be controlled with the Selection Keypad. Clicking
the button on the bottom right of the player opens the Linx Technologies
homepage in the computer’s default browser.
The View Documentation list also allows for the installation of Adobe
Acrobat Reader, so that the documents may be viewed, and Flash, which
may be required if the Linx video does not play correctly.
Clicking the Install Software button starts the Installation Wizard, which
guides the installation of the development software. The installer places the
software application, MS Series documentation, and USB drivers at the
installed location on the computer's hard drive.
– – – –
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Page 11
Linx Technologies
159 Ort Lane
Merlin, OR, US 97532
Phone: +1 541 471 6256
Fax: +1 541 471 6251
www.linxtechnologies.com
Disclaimer
Linx Technologies is continually striving to improve the quality and function of its products. For this reason, we
reserve the right to make changes to our products without notice. The information contained in this Data Guide
is believed to be accurate as of the time of publication. Specifications are based on representative lot samples.
Values may vary from lot-to-lot and are not guaranteed. “Typical” parameters can and do vary over lots and
application. Linx Technologies makes no guarantee, warranty, or representation regarding the suitability of any
product for use in any specific application. It is the customer’s responsibility to verify the suitability of the part for
the intended application. NO LINX PRODUCT IS INTENDED FOR USE IN ANY APPLICATION WHERE THE SAFETY
OF LIFE OR PROPERTY IS AT RISK.
Linx Technologies DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. IN NO EVENT SHALL LINX TECHNOLOGIES BE LIABLE FOR ANY OF CUSTOMER’S INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING IN ANY WAY FROM ANY DEFECTIVE OR NON-CONFORMING PRODUCTS
OR FOR ANY OTHER BREACH OF CONTRACT BY LINX TECHNOLOGIES. The limitations on Linx Technologies’
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limitation, breach of contract, breach of warranty, strict liability, or negligence. Customer assumes all liability
(including, without limitation, liability for injury to person or property, economic loss, or business interruption) for
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limited to the original product purchase price. Devices described in this publication may contain proprietary,
patented, or copyrighted techniques, components, or materials. Under no circumstances shall any user be
conveyed any license or right to the use or ownership of such items.
©2015 Linx Technologies. All rights reserved.
The stylized Linx logo, Wireless Made Simple, WiSE, CipherLinx and the stylized CL logo are trademarks of Linx Technologies.
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