Page 1
NT 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 NT Series Transceiver 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.
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.
2 Board Objects
3 Initial Setup
3 Troubleshooting
4 The Prototyping Area
5 The TX Power Select Switch
5 The Transceiver Area
6 The Power Area
6 The Evaluation Area
8 The Range Test Area
9 The PC Control Area
10 The PC Software
13 Using the Boards as a Design Reference
13 About Antennas
14 Board Control
14 Transmitter Output Power Selection
15 Transceiver Area
15 Header Section
16 Range Test Area
16 Power Area
17 Evaluation Area
17 LEDs
18 Single Routing
19 Online Resources
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NT Series Master Development System
User's Guide
Figure 1: NT Series Master Development System
Introduction
The Linx NT Series RF transceiver modules offer a simple, efficient and
cost-effective method of adding wireless communication capabilities to any
product. The Master Development System (Figure 1) provides all the tools
necessary to correctly and legally incorporate the NT Series into an end
product. The development boards serve several important functions:
• Rapid Module Evaluation: The boards allow the performance of the Linx
NT Series modules to be evaluated quickly in a user’s environment.
Using the onboard transcoders, a pair of development boards can be
used to evaluate the range performance of the modules.
• 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.
• Software Development: A PC interface allows for development and
testing of custom software applications for control of the module.
• Design Benchmark: The boards provide a known benchmark against
which the performance of a custom design may be judged.
The Master Development System includes two assembled development
boards, four NT Series transceivers*, two CW Series antennas, two 9V
batteries, four reverse polarity SMA connectors*, a USB interface board
and full documentation.
* One part is soldered to each board
– –
1
Revised 3/18/2015
Page 4
Ordering Information
Ordering Information
Part Number Description
MDEV-868-NT 868MHz NT Series Master Development System
MDEV-900-NT 900MHz NT Series Master Development System
Initial Setup
Unpack the development system, attach the antennas and install a 9V
battery on each development board. The boards can be used in two
different configurations: Prototype and Evaluation. The Mode Selection
switch sets the configuration. By default, the boards are set to Range Test
in the Evaluation configuration.
Figure 2: Ordering Information
NT Series Transceiver Development Board
4
6
2
1
3
Figure 3: NT Series Transceiver Development Board
7
8
9
10
11
Board Objects
1. Prototype Area
2. Break-Out Header
3. RSSI Level
4. NT Series Transceiver
5. RP-SMA Antenna Connector
6. Module Power Header
7. Output Power Level
Selection Switch
8. Evaluation Selection Switch
9. Baud Rate Selection Dial
10. Channel (Frequency)
Selection Dial
11. Transcoder Range Test Area
12. PC Control Area
13. 9V Battery (on the back of
the board)
14. DC Power Jack
15. Master Power Switch
16. Mode Selection Switch
17. Module Mode Indicator LEDs
Evaluation Configuration
Setting the Mode Select switch to the EVALUATION (right) position enables
the Evaluation Configuration. In this configuration, the module’s signal lines
5
are routed to the Evaluation Area for control. This enables the module to be
configured by the controls on the board while allowing custom data to be
sent over the link.
Range Test
The development boards feature an onboard Linx MT Series transcoder
12
which facilitates range testing. Buttons on one board activate a light or
buzzer on the other. A confirmation LED provides visual acknowledgment
that a transmission was received across the wireless link.
13
Range Test is part of the Evaluation configuration and is the default
15
16
14
17
configuration out of the box. To use the boards this way, place the Mode
Select switch to Evaluation and the Evaluation Select switch to the RANGE
TEST (middle) position. This routes the DATA_IN, DATA_OUT and T/R_SEL
lines to the MT Series Transcoder.
Prototype Configuration
Setting the Mode Select switch to the PROTOTYPE (left) position enables
the Prototype Configuration. In the Prototype configuration, the module’s
signal lines are routed to the break-out header next to the Prototype Area.
This allows the module to be controlled with custom application circuitry.
Software Development
The kit includes one USB interface board for connection to a PC. Included
software demonstrates use of the module’s Command Data Interface (CDI).
Troubleshooting
If the boards fail to work out of the box, then try the following:
• Make sure that the Master Power, Mode Select and Evaluation Select
switches are in the correct positions. The Active LED should be on
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2 3
Page 5
• Make sure that the Baud Rate and Channel switches are set the same
on both boards
• Check that the antennas are connected
• Make sure that a jumper is installed on the Module Power Header
• Make sure that the batteries are not dead
If all of these appear to be in order, please call +1 800 736 6677 or e-mail
[email protected] for technical support.
The Prototyping Area
In addition to its evaluation functions, the board may also be used for
product development. It features a prototyping area to facilitate the addition
of application-specific circuitry (Figure 4). The prototyping area contains a
large area of plated through-holes so that external circuitry can be placed
on the board. The holes are set at 0.100" on center with a 0.040" diameter,
accommodating most industry-standard SIP and DIP packages.
External circuitry can be easily interfaced to the NT transceiver through the
breakout header (TS1) to the right of the prototyping area. The Mode Select
switch should be set to the left position to enable the module’s lines to
be controlled from the prototyping area. At the bottom of the prototyping
area is a row connected to the 5V power supply and at the top is a row
connected to ground.
Note: The onboard 5-volt regulator has approximately 600mA available
for additional circuitry. If more current is required, the user must add an
additional regulator or power the board from an external supply.
The TX Power Select Switch
The board has a switch to select among three different transmitter output
power levels (Figure 5). The right position sets the module to full power of
about 12dBm. The center position sets the output power to about 0dBm,
which is the legal limit for most applications. The left position uses resistor
R37 to set the power. This position is an unpopulated 0603 size resistor
location. A resistor can be placed here to set the output power to any
available level. Please see the NT Series Data Guide for more information
on resistor values. A power cycle is required for changes to take effect.
Figure 5: The Development Board TX Power Select Switch
The Transceiver Area
The transceiver section consists of the transceiver module and a reversepolarity SMA connector as shown in Figure 6. The RP-SMA connector
is FCC compliant and reverses the center pin and socket. RP-SMA
connectors will mate with but not provide electrical connection to standard
SMA connectors or SMA equipped antennas. A header next to the module
disconnects the module’s power from the main board power. This can
be used for current measurements or to power the module alone from an
external power source. A jumper must be installed to power the module
from the board.
Figure 4: The Development Board
Prototyping Area
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4 5
Figure 6: The Development Board Transceiver Area
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The Power Area
The Power Area has two switches that control power to the board and the
type of operation (Figure 7). The Master Power switch supplies power from
the 9V battery or the power jack to the board. The power jack accepts a
2.5mm plug with the tip ground and the shell 7 to 12VDC.
The Mode Select switch configures the board for either Prototype operation
(left position) or Evaluation operation (right position). In Prototype operation,
the module’s signal lines are routed to the header next to the Prototype
Area. This allows custom circuits to easily interface with the module.
In Evaluation operation, the module’s signal lines are routed to the
Evaluation Area. The controls in this area allow the module to be operated
without any other circuits, microcontrollers or a PC.
Three LEDs show the state of the module. Active shows the module is
on and ready for operation. Standby and Power Down indicate that the
low power modes have been entered and the module is not ready for
operation.
Figure 8: The Development Board Level Adjust Section
The right position puts the module into receive mode. The yellow RX LED
lights up and data received by the module is output on the yellow
DATA_OUT test point.
These two configurations allow the module to transmit and receive custom
data while controlling the baud band and channel with the frequency dials
on the board. It is similar to the Prototype Area, but requires less external
circuitry to configure the module. The switches on the board are used for
hardware configuration in this mode.
Figure 7: The Development Board Power Area
The Evaluation Area
The Evaluation Area is activated by setting the Mode Select switch to the
right position. Figure 8 shows the Evaluation Area.
The Evaluation Select switch configures the area for different types of
evaluation. The left position puts the module into transmit mode.
The orange TX LED lights up and any data present on the blue DATA_IN
test point is transmitted by the module.
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6
The Baud Rate Control dial sets the BAUD0 and BAUD1 lines to configure
the module’s baud band. This should be set the same on both boards for
proper operation.
The Channel Control dial sets the CHAN_SEL0, CHAN_SEL1 and
CHAN_SEL2 lines to configure the module’s channel. This should be set
the same on both boards for proper operation.
An LED bar is used to provide a general indication of the RF signal
strength. The closer the active LED is to the top, the stronger the received
signal level. The receiver must be active for at least one second for the
RSSI level to update.
The center position on the Evaluation Select switch activates the Range
Test Area, allowing the link’s range to be evaluated. This area is described
in detail in the Range Test Area section of this user’s guide.
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The Range Test Area
The board features an MT Series remote control transcoder with two push
buttons, a buzzer and an LED. The two boards in the kit are populated
differently so that the button inputs on one board are outputs on the other
board. Figure 9 shows the differences.
To achieve maximum range, keep objects such as your hand away
from the antennas and ensure that the antennas on the boards have
an unobstructed line-of-sight path to each other. Range performance is
determined by many interdependent factors. If the range you are able to
achieve is significantly less than specified by Linx for the products you are
testing, then there is likely a problem with either the board or the ambient
RF environment in which the board is operating. First, check the battery,
switch positions, TX output power setting and antenna connection.
Check the range performance on different channels. Next, measure the
receiver’s RSSI voltage with the transmitter turned off to determine if
ambient interference is present. If this fails to resolve the issue, please
contact Linx technical support.
Board A Board B
Figure 9: The Development Board Range Test Section
When a button is pressed on one board, the status of both buttons is
captured, encoded into a data stream, and transmitted. The data
recovered by the receiving board is decoded and the transcoder’s data
lines are set to replicate the states of the buttons, driving either the buzzer
or the LED. A confirmation packet is then sent to the transmitting board
activating the Confirm LED.
To activate this area of the board, the module’s DATA and T/R_SEL lines
must be routed to the transcoder. This is accomplished by setting the
Mode Select switch to the right position and the Evaluation Select switch to
the middle position.
After the boards have been configured, place Board A on a flat surface
and turn it on. Turn on Board B and press button S1. The buzzer on Board
A will sound and the Confirm LED on Board B will light up. The usable
range of the link in your environment can be ascertained by carrying Board
B away from Board A. Switch SW11 has been provided to continuously
transmit the LED activation without having to hold down a button.
As you near the maximum range of the link in your area, it is common for
the signal to cut in and out as you move. This is normal and can result from
other interfering sources or fluctuating signal levels due to multipath effects.
The areas in which this occurs are commonly called “nulls” and simply
walking a little farther will often restore the signal.
The PC Control Area
The PC Control Area is used with a daughter board to connect the
module’s Command Data Interface to a PC. This advanced feature is a
serial data interface for configuration and data transfer. One USB interface
board is included with the development kit. Additional USB interface boards
or an RS-232 interface board can be purchased separately.
1
2
3
Figure 10: PC Interface Boards
4
The top DIP switch (1) controls the TRPT/PKT line on the module. This
line selects between transparent data transmission and packet data
transmission. Slide it to the left for transparent data and to the right for
packet data.
The bottom DIP switch (1) controls the CMD_DATA_BAUD line on
the module. This is the data rate for the CDI and has no effect on the
over-the-air data rate. Slide to the left for 57,600bps and to the right for
9,600bps.
1
2
3
4
– – – –
8
9
Page 8
The three position slide switch (2) controls the CMD_DATA_TYPE line. This
line tells the module that the data coming in on the CDI is either command
data for configuring the module (middle position) or packet data to be
transmitted over the air (top position). The bottom position connects this
line to the DTR line on the USB or RS-232 interface. This allows the PC
software to control the line, giving it the ability to configure the module and
send data.
Test points for CMD_DATA_IN (3) and CMD_DATA_OUT (4) are provided so
that the communications can be monitored.
The PC Software
The kit includes PC software that can be used to configure the module
through the PC interface daughter board. Figure 11 shows the software.
The command portion of the window
starts in the middle of the window (Figure
13). At the top is a box that states the
product name, firmware version and
serial number.
Figure 13: Development Kit PC Software
Below this is a selection that determines
how the module is configured (Figure 14).
Writing to RAM is faster, but the settings
Figure 14: Development Kit PC Software
are lost when power is cycled to the module. Programming to flash takes a
bit longer (5ms/byte), but the settings are retained when power is cycled to
the module.
Below this are the configuration settings
(Figure 15). These allow the software to
change the channel, baud band, transmit
and receive mode and the output
power. By default the module looks to
its hardware pins for these configuration
settings, so software control must be
enabled for it to take control. This is
done by checking the Enable checkbox
in each section.
Figure 11: Development Kit PC Software
The left side of the window contains
labels that expand to show links to useful
information (Figure 12). This includes the
Linx Technologies contact information
and links to the website for the latest
product documentation and software
updates. Clicking on these links opens
the page in the computer’s default web
browser.
– – – –
Figure 12: Development Kit PC Software
The Channel configuration allows the
Figure 15: Development Kit PC Software
user to select from among all 101 channels offered by the module rather
than just the eight available with the hardware lines. A selection box shows
the channel and a text box shows the channel’s frequency.
The Baud Band setting adjusts internal filters and other settings to set
the transceiver’s maximum over-the-air data rate. The Baud Band section
allows for the selection from among the four baud bands.
The Transmit/Receive Mode selection activates the transceiver’s transmitter
or receiver. When the receiver is active the measured RSSI level is shown in
the text box.
The Output Power section allows the module’s transmitter output power
level to be adjusted. The NT Series has 57 power levels that drop the
power in approximately 0.5dB increments. The adjacent text box shows
the approximate power. This is not a measured value, but an approximate
value based on characterization of the modules.
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The “Read Active Settings” button
at the bottom (Figure 16) reads the
existing configuration settings from the
module and adjusts the values in the
configuration sections based on the
module’s current configuration.
The right column in the window starts
with the Profile section (Figure 17).
Specific configuration settings can be
saved as a profile and loaded into a
connected module. This allows the
software to be used in small-scale
production lines for products that provide
connection to the CDI.
Figure 16: Development Kit PC Software
Figure 17: Development Kit PC Software
Using the Boards as a Design Reference
From a layout perspective, the master development boards included in this
kit are quite simple, yet they illustrate some important techniques that can
be incorporated into a design. The module’s mounting pads extend slightly
past the edge of the part. This eases hand assembly and allows for better
heat conduction under the part if rework is necessary. The use of a full
ground plane fill on the lower side of the board serves three important
purposes.
First, since a ¼-wave antenna is employed, the ground plane is critical to
serve as a counterpoise. Application Note AN-00500 and AN-00501
provide additional details on how a ground plane affects antenna function.
Second, a ground plane suppresses the transfer of noise between stages
of a product as well as unintentional radiation of noise into free space.
Select the “New” button to create a new profile and give it a name. Set
the configuration controls as desired and click the “Save” button to save
the profile. Click the “Program” button to send the profile to the module.
All of the profiles saved on the PC can be viewed in the drop down menu
and sent to the module with the “Program” button. The “Delete” button
removes the selected profile from the computer.
The Serial Command section (Figure 18)
provides the ability to send a specific
packet to the module. Byte values are
typed into the boxes to create the packet
and the “Send Command” button sends
the packet to the module. The ACK text
box displays the module’s response. The
possible values for each byte are shown
in the table below the “Send Command”
button.
The “Restore Defaults” button (Figure 19)
writes the factory default values to the
Figure 18: Development Kit PC Software
transceiver. This is an easy way to restore
the module to a known configuration.
Third, a ground plane allows for the implementation of a microstrip feed
to the antenna. The term microstrip refers to a PCB trace running over
a ground plane that is designed to serve as a 50-ohm transmission line
between the module and the antenna. A microstrip is implemented on this
evaluation board. The module’s data guide and a calculator available on the
Linx Technologies website provide more information on the microstrip
implementation and calculations.
About Antennas
The choice of antennas is one of the most critical and often overlooked
design considerations. The range, performance and legality of an RF link
are critically dependent upon the type of antenna employed. Linx offers a
variety of antenna styles that may be considered for a design. Included with
the development system is a Linx CW Series connectorized whip antenna
that should be connected prior to using the kit. Despite the fact that the
antenna is not centered on the board’s ground plane, it exhibits a VSWR of
<1.7 and demonstrates the module’s best practical performance.
Figure 19: Development Kit PC Software
12
– – – –
13
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BOARD CONTROL
MODE_SEL
TX_SEL
RNG_SEL
RX_SELCH_BD_CTL
PDN
RX_LED
STDBY
ACTV_LED
PDN_LED
STBY_LED
DACOUT/AN2/RA2
4
AN3/RA3
5
RA4
6
SS/AN4/RA5
7
VSS
8
OSC1/RA7
9
OSC2/RA6
10
RC0
11
RC1
12
RC2
13
RA0/AN0/SS
2
RA1/AN1
3
RB3/AN9
24
RB4/AN11
25
RB5/AN13
26
RB6/PGC
27
20
RB0/AN12/INT
21
RB1/AN10
22
RB2/AN8
23
RX/RC7
18
19
RB7/PGD
28
RE3/MCLR/VPP
1
SCL/SCK/RC314SDA/SDI/RC4
15
SDO/RC5
16
TX/RC6
17
U11
PIC16F1938
GND
VCC
PGC
PGDVPP
C7
0.1uF
GND
VDD
VSS
BOARD CONTROL
0.1uF
Board Control
IN
1
VCC
2
GND3NC
4
COM
5
NO
6
U4
MAX4544EUT
T/R_SEL_R
DATA_MT
GND
VCC
DATA_IN_R
DATA_OUT_R
GND
LED
GREEN
R18
620
D0
LED-0805-GRN
VCC
GND
GND
VCC
BUZZER
VCC
GND
LED
LED
BOARD A =
NS/DNP
BOARD B = 100K
BOARD A =
NS/DNP
BOARD B = 100K
BOARD A = 100K
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD A =
NS/DNP
BOARD B =
NS/DNP
BOARD A = 0 ohm
BOARD B =
NS/DNP
BOARD A = 0 ohm
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B = 0 ohm
D2
D1
D0
R0 R4
R2
R6
R1
R5
S0
S1
S2
BUZZER
B
3
A`
2
A
1
F`
12
F
13
VCC
14
U3
R16
100K
R17
TRANSCEIVER AREA RANGE TEST AREA
D10
GND
GND
GND
GND
D3
D2
D1
D0
GND
GND
GND
T/R_SEL_R
DATA_MT
GND
GND
GND
VCC
1
D6
2
D7
3
CRT/LRN
4
ENC_SEL
5
SER_IO
6
CONFIRM
7
TR_PDN
8
TR_SEL
9
TR_DATA
10
D0
11
D1
12
D2
13
MODE_IND
14
SEL_BAUD
15
LATCH
16
D3
17
D4
18
D5
19
GND
20
U2
LICAL-TRC-MT
R8
100K
R9
100K
R10
100K
R11
100K
R12
100K
R14
100K
R15
100K
BLUE
R13
200 ohm
VCC
C12
0.1uF
GND
GND
VCC
R32
0 ohm
R31
NS/DNP
SW11
SW-SMT-SPDT
VCC
BOARD A =
NS/DNP
BOARD B = 0 ohm
BOARD A = 0 ohm
BOARD B =
NS/DNP
R33
R34
1
2
J2
VCCM
VCC
IN
1
VCC
2
GND3NC
4
COM
5
NO
6
U4
MAX4544EUT
T/R_SEL_R
DATA_MT
GND
VCC
DATA_IN_R
DATA_OUT_R
GND
LED
GREEN
R18
620
D0
LED-0805-GRN
VCC
GND
GND
VCC
BUZZER
VCC
GND
GND
VCC
BUZZER
LED
LED
BOARD A =
NS/DNP
BOARD B = 100K
BOARD A =
NS/DNP
BOARD B = 100K
BOARD A = 100K
BOARD B =
NS/DNP
BOARD A = 100K
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B =
NS/DNP
BOARD A = 0 ohm
BOARD B =
NS/DNP
BOARD A = 0 ohm
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B = 0 ohm
BOARD A =
NS/DNP
BOARD B = 0 ohm
D3
D2
D1
D0
R0 R4
R2
R6
R3
R1
R5
R7
S0
S1
S2
S3
GND
BUZZER
B`
4
C
5
C`
6
GND
7
B
3
A`
2
A
1
E
11
F`
12
F
13
VCC
14
E`
10
D
9
D`
8
U3
CD4069UB
BZ1
AUD-S-BUZ-12MM-4K
R16
100K
R17
10k
C4
0.01uF
TRANSCEIVER AREA RANGE TEST AREA
GND
VCCM
+
C2
10uF
GND
GND
VCC
J1
PWRJACK
D1
B1
SW1
Vin
1
GND
2
Vout
3
U1
AP1117E50G-13
+
C1
220uF
POWER AREA
HEADER SECTION
1
TP1
TEST POINT
VCC
1
TP2
TEST POINT
GND
D10
GND
GND
GND
GND
D3
D2
D1
D0
GND
GND
GND
T/R_SEL_R
DATA_MT
GND
GND
GND
VCC
1
D6
2
D7
3
CRT/LRN
4
ENC_SEL
5
SER_IO
6
CONFIRM
7
TR_PDN
8
TR_SEL
9
TR_DATA
10
D0
11
D1
12
D2
13
MODE_IND
14
SEL_BAUD
15
LATCH
16
D3
17
D4
18
D5
19
GND
20
U2
LICAL-TRC-MT
R8
100K
R9
100K
R10
100K
R11
100K
R12
100K
R14
100K
R15
100K
BLUE
R13
200 ohm
VCC
C12
0.1uF
GND
GND
VCC
R32
0 ohm
R31
NS/DNP
SW11
SW-SMT-SPDT
VCC
BOARD A =
NS/DNP
BOARD B = 0 ohm
BOARD A = 0 ohm
BOARD B =
NS/DNP
R33
R34
TP5
GND GND
GND
GNDGND
GNDGND
VCCM
BAUD1
RSSI
STDBY
CD_IN
CD_OUT
CD_TYPE
CD_BAUD
DATA_OUT
DATA_IN
PDN
CS1
CS2
LADJ
RDY
T/R_SEL
BAUD0
CS0
TRPT/PKT
RF
1
GND
2-5
ANT1
CONREVSMA001
GND
GND
GND
GND
GND GND
R21
100K
R22
100K
NC0
NC
2
GND
3
NC
4
NC
5
GND
6
NC
7
TRPT/PKT
9
CHN_SEL0
10
GND
11
T/R_SEL
18
BAUD0
19
RSSI
21
GND
22
GND
23
POWER_DOWN
24
VCC
25
STANDBY
26
CMD_DATA_IN
27
CHN_SEL1
12
GND
17
CHN_SEL2
13
LVL_ADJ
14
READY
15
NC
16
NC
8
BAUD1
20
GND
1
GND
28
CMD_DATA_OUT
29
CMD_DATA_TYPE
30
CMD_DATA_BAUD
31
NC
32
NC
33
GND
34
NC
35
NC
36
DATA_OUT
37
DATA_IN
38
GND
39
NC
40
NC
41
GND
42
ANTENNA
43
GND
44
TR1
TRM-XXX-NT
VCC2
VCC2
R36
100K
VCC
R35
2.2K
GND
C13
0.01uF
C14
100pF
GND GND
R43
100K
VCC2
Transceiver Area
U11
1
RE3/MCLR/VPP
2
RA0/AN0/SS
3
RA1/AN1
4
DACOUT/AN2/RA2
5
DATA_CTL1
DATA_CTL2
GND
TR_CTL2
TR_CTL1
ALL_EN
Transmitter Output Power Selection
TX_LED
PROTO_LED
EVAL_LED
Figure 20: Board Control
AN3/RA3
6
RA4
7
SS/AN4/RA5
8
VSS
9
OSC1/RA7
10
OSC2/RA6
11
RC0
12
RC1
13
RC2
SCL/SCK/RC314SDA/SDI/RC4
PIC16F1938
LADJ
Figure 21: Transmitter Output Power Selection
TR1
28
RB7/PGD
RB6/PGC
RB5/AN13
RB4/AN11
RB3/AN9
RB2/AN8
RB1/AN10
RB0/AN12/INT
VDD
VSS
RX/RC7
TX/RC6
SDO/RC5
R30 NS/DNP
SW10
R2097.6k 1%
R37
NS/DNP
GND
– – – –
14
PGDVPP
27
PGC
26
PDN
25
STDBY
24
TX_SEL
23
RNG_SEL
22
RX_SELCH_BD_CTL
21
MODE_SEL
20
19
GND
18
RX_LED
17
PDN_LED
16
STBY_LED
15
ACTV_LED
GND
GND
VCC
GND
C7
TRPT/PKT
T/R_SEL
BAUD0
BAUD1
Figure 22: Transceiver Area
Header Section
1
GND GND
GND
GND
CS0
CS1
CS2
LADJ
RDY
NC0
GND GND
RSSI
GND
2
NC
3
GND
4
NC
5
NC
6
GND
7
NC
8
NC
9
TRPT/PKT
10
CHN_SEL0
11
GND
12
CHN_SEL1
13
CHN_SEL2
14
LVL_ADJ
15
READY
16
NC
17
GND
18
T/R_SEL
19
BAUD0
20
BAUD1
21
RSSI
22
GND
TRM-XXX-NT
TS1
1
2
3
4
5
6
7
8
9
10
11
T/R_SEL_P
12
DATA_OUT_P
13
DATA_IN_P
14
GND
CS0_P
CS1_P
CS2_P
RDY
BAUD0_P
BAUD1_P
RSSI_P
STDBY
PDN
VCC
Figure 23: Header Section
ANTENNA
DATA_IN
DATA_OUT
CMD_DATA_BAUD
CMD_DATA_TYPE
CMD_DATA_OUT
CMD_DATA_IN
STANDBY
POWER_DOWN
GND
GND
NC
NC
GND
NC
NC
GND
NC
NC
GND
VCC
GND
44
43
42
GND
41
40
39
GND
38
DATA_IN
37
DATA_OUT
36
35
34
GNDGND
33
32
31
CD_BAUD
30
CD_TYPE
29
CD_OUT
28
27
CD_IN
26
STDBY
25
24
PDN
23
GNDGND
J6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
15
GND
TRPT/PKT
CD_BAUD
RDY
CD_TYPE
CD_OUT
CD_IN
VCC2
VCC
GND
ANT1
CONREVSMA001
1
GND
VCC2
R21
100K
R22
100K
R35
2.2K
R36
100K
GND 1
GND
RF
GND
2-5
VCC
VCCM
VCC2
R43
100K
GND
VCC2
GND GND
C13
0.01uF
VCC
J7
2
J8
1
2
3
4
5
VCCM
J2
1
2
C14
100pF
Page 11
IN
1
VCC
2
GND3NC
4
COM
5
NO
6
U4
MAX4544EUT
T/R_SEL_R
DATA_MT
GND
VCC
DATA_IN_R
DATA_OUT_R
GND
LED
GREEN
R18
620
D0
LED-0805-GRN
VCC
GND
GND
VCC
BUZZER
VCC
GND
GND
VCC
BUZZER
LED
LED
BOARD A =
NS/DNP
BOARD B = 100K
BOARD A =
NS/DNP
BOARD B = 100K
BOARD A = 100K
BOARD B =
NS/DNP
BOARD A = 100K
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B =
NS/DNP
BOARD A = 0 ohm
BOARD B =
NS/DNP
BOARD A = 0 ohm
BOARD B =
NS/DNP
BOARD A =
NS/DNP
BOARD B = 0 ohm
BOARD A =
NS/DNP
BOARD B = 0 ohm
D3
D2
D1
D0
R0 R4
R2
R6
R3
R1
R5
R7
S0
S1
S2
S3
GND
BUZZER
B`
4
C
5
C`
6
GND
7
B
3
A`
2
A
1
E
11
F`
12
F
13
VCC
14
E`
10
D
9
D`
8
U3
CD4069UB
BZ1
AUD-S-BUZ-12MM-4K
R16
100K
R17
10k
C4
0.01uF
POWER AREA
D10
GND
GND
GND
GND
D3
D2
D1
D0
GND
GND
GND
T/R_SEL_R
DATA_MT
GND
GND
GND
VCC
1
D6
2
D7
3
CRT/LRN
4
ENC_SEL
5
SER_IO
6
CONFIRM
7
TR_PDN
8
TR_SEL
9
TR_DATA
10
D0
11
D1
12
D2
13
MODE_IND
14
SEL_BAUD
15
LATCH
16
D3
17
D4
18
D5
19
GND
20
U2
LICAL-TRC-MT
R8
100K
R9
100K
R10
100K
R11
100K
R12
100K
R14
100K
R15
100K
BLUE
R13
200 ohm
VCC
C12
0.1uF
GND
GND
VCC
R32
0 ohm
R31
NS/DNP
SW11
SW-SMT-SPDT
VCC
BOARD A =
NS/DNP
BOARD B = 0 ohm
BOARD A = 0 ohm
BOARD B =
NS/DNP
R33
R34
EVALUATION AREA SIGNAL ROUTING
BAUD0_P
BAUD0_S
BAUD1_P
BAUD1_S
VCC
BAUD1
BAUD0
Y1
1
Y0
2
Z1
3
Z
4
Z0
5
X0
12
X1
13
X
14
Y
15
VCC
16
U7
RSSI
RSSI_P
RSSI_B
C9
0.1uF
GND
R54 NS/DNP
GND
R55 NS/DNP
GND
R50 NS/DNP
GND
R51 NS/DNP
GND
R52 NS/DNP
GND
R53
GND
5.1M
EVALUATION AREA SIGNAL ROUTING
LEDS
1
1
C
2
432
4
C
5
8
6
SW4
GNDGND
CS1_SCS2_S
CS0_S
1
1
C
2
432
4
C
5
8
6
SW5
GNDGND
BAUD1_S
BAUD0_S
YELLOW
SW8
TX_SEL
RNG_SEL
RX_SEL
GND
CS1
CS2
CS0
CS0_P
CS0_S
CS1_P
CS1_S
CS2_P
CS2_S
CH_BD_CTL
GND
GND
VCC
Y1
1
Y0
2
Z1
3
Z
4
Z0
5
EN
6
VEE
7
GND8C
9
B
10
A
11
X0
12
X1
13
X
14
Y
15
VCC
16
U6
MC74HC4053A
ALL_EN
C8
0.1uF
GND
R44 NS/DNP
GND
R45 NS/DNP
GND
R46 NS/DNP
GND
R47 NS/DNP
GND
R48 NS/DNP
GND
R49 NS/DNP
GND
T/R_SEL_R
ALL_EN
GND
GND
VCC
T/R_SEL
2Y0
1
2Y2
2
2COM
3
2Y3
4
2Y1
5
INH
6
GND
7
GND
8
B
9
A
10
1Y3
11
1Y0
12
1COM
13
1Y1
14
1Y2
15
VCC
16
U9
SN74LV4052A
TR_CTL1
TR_CTL2
T/R_SEL_P
VCC
GND
C11
0.1uF
GND
R62
NS/DNP
GND
R63
NS/DNP
GND
ALL_EN
DATA_IN_R
DATA_OUT_R
GND
GND
VCC
DATA_OUT
DATA_IN
DATA_OUT_P
DATA_IN_P
DATA_CTL1
DATA_CTL2
2Y0
1
2Y2
2
2COM
3
2Y3
4
2Y1
5
INH
6
GND
7
GND
8
B
9
A
10
1Y3
11
1Y0
12
1COM
13
1Y1
14
1Y2
15
VCC
16
U8
SN74LV4052A
1
TP3
1
TP4
C10
0.1uF
GND
R57
10k
GND
R58
10k
GND
R56
10k
GND
R59
10k
R60
10k
R61
10k
GND
GND
GND
VCC
C5
VCC
GND
+
C6
2.2uF
BAUD0_P
BAUD0_S
BAUD1_P
BAUD1_S
CH_BD_CTL
GND
GND
VCC
BAUD1
BAUD0
Y1
1
Y0
2
Z1
3
Z
4
Z0
5
EN
6
VEE
7
GND8C
9
B
10
A
11
X0
12
X1
13
X
14
Y
15
VCC
16
U7
MC74HC4053A
ALL_EN
RSSI
RSSI_P
RSSI_B
C9
0.1uF
GND
R54 NS/DNP
GND
R55 NS/DNP
GND
R50 NS/DNP
GND
R51 NS/DNP
GND
R52 NS/DNP
GND
R53
GND
5.1M
Range Test Area
GND
LED-0805-GRN
Figure 24: Range Test Area
Power Area
J1
PWRJACK
MODE_SEL
Figure 25: Power Area
Evaluation Area
R8
GND
100K
R9
GND
100K
R10
GND
100K
R11
GND
100K
R12
GND
100K
D10
R13
200 ohm
BLUE
LED
D0
GND
T/R_SEL_R
VCC
GND
R16
1
100K
2
R17
3
10k
4
C4
5
6
0.01uF
7
GND
D1
T/R_SEL_R
DATA_MT
R18
620
GREEN
U4
1
IN
2
VCC
GND3NC
MAX4544EUT
U3
A
VCC
A`
F
B
F`
B`
E
C
E`
C`
D
GND
D`
CD4069UB
SW1
B1
GND
GND
SW9
VCC
VCC
SW-SMT-SPDT
6
NO
5
COM
4
14
13
12
11
10
9
8
1
VCC
GND
C12
GND
0.1uF
U2
1
VCC
2
D6
3
D7
4
CRT/LRN
5
ENC_SEL
6
SER_IO
7
CONFIRM
8
TR_PDN
9
TR_SEL
10
TR_DATA
LICAL-TRC-MT
SW11
BOARD A =
BOARD B = 0 ohm
BOARD A = 0 ohm
BOARD B =
DATA_IN_R
DATA_MT
DATA_OUT_R
BUZZER
AUD-S-BUZ-12MM-4K
U1
AP1117E50G-13
Vin
Vout
GND
2
GND
VCCM
– – – –
BZ1
R33
R34
16
3
R24
10K
SEL_BAUD
MODE_IND
NS/DNP
NS/DNP
VCC
+
GND
20
GND
19
D5
18
D4
17
D3
16
LATCH
15
14
13
D2
12
D1
11
D0
GND
BOARD A =
NS/DNP
BOARD B = 100K
GND
BOARD A =
NS/DNP
BOARD B = 100K
GND
BOARD A = 100K
BOARD B =
NS/DNP
GND
BOARD A = 100K
NS/DNP
BOARD B =
VCCM
+
C1
220uF
GND
U10
4
D23S2
5
G1
G2
6
S1
D1
DMG1016V
D3
D2
D1
D0
D0
R0 R4
D1
R1
D2
R2
D3
R3
C2
10uF
GND
GND
S0
BOARD A = 0 ohm
BOARD B =
S1
R5
BOARD A = 0 ohm
BOARD B =
S2
BOARD A =
BOARD B = 0 ohm
S3
R7
BOARD A =
BOARD B = 0 ohm
VCC
GND
GND
2
PDN
1
GND
R14
100K
R15
100K
R31
NS/DNP
R32
0 ohm
BOARD A =
BOARD A =
BOARD B =
R6
BOARD B =
NS/DNP
VCC
LED
NS/DNP
NS/DNP
VCC
BUZZER
NS/DNP
NS/DNP
VCC
LED
NS/DNP
NS/DNP
VCC
BUZZER
NS/DNP
TP1
1
TEST POINT
TP2
1
TEST POINT
TP5
1
TEST POINT
VCC2
R27
100k
GND
GND
VCC
GND
BAUD0_S
Figure 26: Evaluation Area
LEDs
PROTO_LED
Figure 27: LEDs
RSSI_B
GND
GND
SW5
1
2
GND
4
5
6
7
8
R28
1.2K
1%
GND
R39
470 ohm
D9
RED
ACTV_LED
GND
1
8
C
C
432
+
10uF
DIVIDER LOW
IN
DIVIDER HIGH
N/C
REF OUT
EVAL_LED
R19
620 ohm
GND
SW8
6
BAUD1_S
5
GNDGND
4
GND
1V-2V+3
LED1
U5
LM3914V
N/C9REF ADJ10MODE SELECT
11
R29
2.20K
1%
R38
470 ohm
D3
RED
GND
D2
GREEN
R42
NS/DNP
PDN_LED
TX_SEL
RNG_SEL
RX_SEL
19
20
LED2
LED1012LED9
13
R40
470 ohm
GND
TX_LED
17
CS0_S
LED3
D7
RED
LED4
LED5
LED6
LED7
LED8
VCC
STBY_LED
R25
200 ohm
GND
1
2
18
17
16
15
14
GND
D4
ORANGE
SW4
1
C
432
R41
200 ohm
D8
YELLOW
8
C
D6
LED BAR 10
RX_LED
6
5
GNDGND
4
CS1_SCS2_S
1011
912
813
714
615
516
417
318
219
120
R26
200 ohm
D5
GND
Page 12
Single Routing
C9
Online Resources
GND
GND
GND
GND
TP4
GND
1
R50 NS/DNP
R51 NS/DNP
R52 NS/DNP
R53
5.1M
R56
10k
R57
10k
GND
BAUD1_P
BAUD1_S
RSSI_P
RSSI_B
ALL_EN
R58
10k
GND
RSSI
1
2
3
4
5
6
7
GND
GND
GND
GND
GND
GND
DATA_OUT_P
DATA_OUT
DATA_OUT_R
ALL_EN
GND
GND
GND
U7
VCC
Y1
Y
Y0
X
Z1
X1
Z
X0
Z0
A
EN
B
VEE
GND8C
MC74HC4053A
R44 NS/DNP
R45 NS/DNP
R46 NS/DNP
R47 NS/DNP
U8
1
2Y0
2
2Y2
3
2COM
4
2Y3
5
2Y1
6
INH
7
GND
8
GND
SN74LV4052A
0.1uF
ALL_EN
ALL_EN
GND
GND
16
15
14
13
12
11
10
9
CS1_P
CS1_S
CS2_P
CS2
CS2_S
GND
GND
GND
1COM
VCC
BAUD1
BAUD0
BAUD0_P
BAUD0_S
CH_BD_CTL
0.1uF
VCC
1Y2
1Y1
1Y0
1Y3
A
B
1
2
3
4
5
6
7
8
U6
1
Y1
2
Y0
3
Z1
4
Z
5
Z0
6
EN
7
VEE
GND8C
MC74HC4053A
C10
VCC
16
15
14
DATA_IN_R
13
DATA_IN
12
DATA_IN_P
11
10
DATA_CTL1
9
DATA_CTL2
U9
2Y0
2Y2
2COM
2Y3
2Y1
INH
GND
GND
SN74LV4052A
R54 NS/DNP
R55 NS/DNP
C8
GND
0.1uF
VCC
Y
X
X1
X0
A
B
TP3
1
R59
10k
GND
0.1uF
VCC
1Y2
1Y1
1COM
1Y0
1Y3
A
B
R61
10k
C11
GND
GND
16
15
14
13
12
11
10
9
R60
10k
16
15
14
13
12
11
10
9
VCC
CS1
CS0
CS0_P
CS0_S
CH_BD_CTL
GND
GND
VCC
VCC
T/R_SEL_R
T/R_SEL
T/R_SEL_P
GND
TR_CTL1
TR_CTL2
R48 NS/DNP
R49 NS/DNP
GND
R62
NS/DNP
R63
NS/DNP
GND
GND
GND
GND
www.linxtechnologies.com
If you have questions regarding any Linx product and have Internet access,
make www.linxtechnologies.com your first stop. Day or night, the Linx
website gives you instant access to the latest information regarding the
products and services of Linx. It’s all here, including:
• Manual and Software Updates
• Latest News
• Data Guides
• Application Notes
• Knowledgebase
• FCC Information
And much more. Be sure to visit often!
www.antennafactor.com
The Antenna Factor division of Linx offers a
diverse array of antenna styles (Figure 29),
many of which are optimized for use with
by
our RF modules. From innovative
embeddable antennas to low-cost whips,
domes to Yagis, and even GPS, Antenna
Factor likely has an antenna for you, or can
design one to meet your requirements.
Figure 29: Antenna Factor Anetnnas
Figure 28: Single Routing
– – – –
18
19
Page 13
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’
liability are applicable to any and all claims or theories of recovery asserted by Customer, including, without
limitation, breach of contract, breach of warranty, strict liability, or negligence. Customer assumes all liability
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Products sold by Linx Technologies to Customer. Under no conditions will Linx Technologies be responsible for
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