Hitachi JR AUTOMATION TPM-CW-300 User manual

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 1 of 11
Printed: 11/16/22
3:36 PM
Continuous TPM Antenna User Manual
Model Number: TPM-CW-300
Includes Variants: TPM-LA-300-000 & TPM-SA-300-000

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 2 of 11
Printed: 11/16/22
3:36 PM
REVISIONS
Revision
Date
Revised By:
Description
Prelim
12/28/21 Mark Compton Preliminary
CONTENTS
Continuous TPM Antenna User Manual .................................................................................................................... 1
REVISIONS ............................................................................................................................................................... 2
CONTENTS ............................................................................................................................................................... 2
GENERAL IFORMATION & CONSIDERATIONS ..................................................................................................... 3
RF EXPOSURE STATEMENT .................................................................................................................................. 3
SAFETY ..................................................................................................................................................................... 4
PERSONAL PROTECTIVE EQUIPMENT ................................................................................................................. 4
GROUNDING ............................................................................................................................................................. 5
ELECTRICAL WARNING SIGNS .............................................................................................................................. 5
TPM STEM OVERVIEW ............................................................................................................................................ 6
LF TRANSMISSION (125KHz) .................................................................................................................................. 7
RECEIVING UHF SIGNALS ...................................................................................................................................... 8
EXTERNAL CONNECTIONS & LED INDICATORS ................................................................................................. 9
ANTENNA MOUNTING ........................................................................................................................................... 10
APPENDIX A: PRODUCT DATA SHEET ............................................................................................................... 11

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 3 of 11
Printed: 11/16/22
3:36 PM
GENERAL IFORMATION & CONSIDERATIONS
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following
two conditions: (1) this device may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de
licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de
brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage
est susceptible d'en compromettre le fonctionnement
Additionally:
1. Changes or modifications not expressly approved by the manufacturer could void the user’s authority to
operate the equipment.
2. JR Automation TPM products & related equipment must be integrated into the end users manufacturing
system by JR Automation, or by a JR Automation recommended automation Systems Integrator.
3. JR Automation TPM products are meant for industrial manufacturing settings only.
4. JR Automation does not manufacture or provide TPM valve stems, only the equipment that is used to
communicate to those stems during tire, wheel, & vehicle manufacturing.
RF EXPOSURE STATEMENT
The device shall be used in such a manner that the potential for human contact normal operation is minimized.
This equipment complies with RSS-102 radiation exposure limits. This equipment should be installed and
operated with a minimum distance of 20 cm between the radiator and your body. This device and its antenna(s)
must not be co-located or operating in conjunction with any other antenna or transmitter.
Le dispositif doit être utilisé de manière à minimiser le potentiel de fonctionnement normal par contact humain.
Cet équipement est conforme aux limites d'exposition au rayonnement RSS-102. Cet équipement doit être installé
et utilisé avec une distance minimale de 20 cm entre le radiateur et votre corps. Cet appareil et son (ses) antenne
(s) ne doivent pas être co-localisés ou utilisés conjointement avec une autre antenne ou un autre émetteur

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 4 of 11
Printed: 11/16/22
3:36 PM
SAFETY
1. Only personnel who are properly trained and have adequate knowledge and skill related to this product
should undertake any troubleshooting and repair.
2. It must be assumed at all times that POWER is "ON" so all conditions must be treated as live. This practice
develops a caution that may prevent an accident. Follow posted lockout procedures.
3. REMOVE LOAD from circuit or equipment before and after maintenance/troubleshooting.
4. Equipment—NOTE: Test equipment must be checked at regular intervals.
5. Capacitors MUST be given time to discharge, otherwise it should be done manually with CARE.
6. When troubleshooting "LIVE" equipment, the necessary precautions must be taken as follows:
a. Follow written safe operating practices.
b. MAKE CERTAIN your tools and body are clear of Ground.
c. Use extra PRECAUTION in DAMP areas.
d. BE ALERT and work without any outside distraction.
7. BEFORE applying POWER to any equipment, it must be established without a DOUBT that all persons are
CLEAR.
8. Any CONTROL PANEL DOORS shall be open ONLY when it is necessary to check out the electrical
equipment or wiring. After CLOSING the door, make certain that the disconnecting means is operating
properly with the DISCONNECT HANDLE MECHANISM.
9. ALL COVERS or junction boxes SHOULD be CLOSED before leaving any job.
10. BEFORE STARTING, read and understand all WARNING markings and notices.
11. READ all marking such as nameplates and identification plates.
12. DO NOT alter circuits unless authorized to do so by the manufacturer.
13. DO NOT alter or by-pass protective interlocks.
14. DO NOT place jumper wires across fuses.
15. DO NOT alter over-current protective devices.
16. GROUND connections allow fault currents to flow directly into the ground instead of following through the
body then into the ground. ALL ELECTRICAL APPARATUS MUST BE PROPERLY GROUNDED.
17. Use CAUTION when connecting test equipment probes to test points. SHOCK HAZARDS could exist at the
test points or in the test point area and/or TRANSIENTS induced by the problems could cause a MACHINE
ACTION.
18. AVOID wearing a necklace, ring or chain that is made of a METALLIC substance.
19. All electrical wiring and items related to electrical controls are, and shall always be, in compliance with
current National & Local Regulations.
PERSONAL PROTECTIVE EQUIPMENT
When servicing, protect yourself by wearing protective equipment where required:
1. Safety Glasses—Must be properly fitted and worn when a hazard exists.
2. Gloves—Although it is recommended that gloves not be worn unless absolutely necessary, gloves can
protect the hands from cuts or abrasions caused by slings or sharp edges. Do not use gloves when working
on a tool with rotating equipment.

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 5 of 11
Printed: 11/16/22
3:36 PM
GROUNDING
The TPM antenna system must be properly grounded. Each of the following must be grounded ultimately to the
installation sites grounding system:
1. Transmission antenna’s metal shielding (for products that include a metal shield)
2. The conduit between the transmission antenna and antenna enclosure
3. The antenna enclosure
4. Antenna stand or mounting structure
ELECTRICAL WARNING SIGNS
The antenna enclosure is marked with high voltage warning labels. The antenna system is capable of
generating high voltages. The enclosure cover should be kept in place during operation. Only trained, qualified
personnel should remove the enclosure cover.

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 6 of 11
Printed: 11/16/22
3:36 PM
TPM STEM OVERVIEW
The purpose of this section is to provide an overview of the TPM valve stems. The scope of this manual is to
cover the operation of the JR Automation antenna systems that communicate to the stems, not detailed
information on the TPM valve stems themselves. But a general overview of how TPM valve stems operate will
help the users understand the operation of the antenna equipment. It should be noted that JR Automation does
not manufacture or provide TPM valve stems
TPM valve stems are electronic valve stems that are designed to warn a vehicle driver when the tire inflation
pressure is outside acceptable limits. The stems contain pressure sensors and RF communications devices to
allow the stems to detect a bad inflation pressure, and then tell the vehicle computer system that an inflation
problem exists. This allows the vehicle computer to annunciate the problem to the driver of the vehicle, usually
with a dashboard indicator of some kind.
Tire Pressure Monitor sensors or TPM valve stems are manufactured by several different manufacturers. These
stems vary greatly in shape, electrical design, function, communication method, and RF characteristics. It is this
high degree of variation that poses the greatest challenge for a single antenna system to communicate to all
these different stems.
TPM stems are designed to monitor and report on the conditions inside the tire (e.g. tire
internal air temperature, pressure, and stem battery voltage). The stem will transmit this
information via a UHF radio signal (usually 315MHz or 433 MHz). This is typically referred
to as a “wake up”. These wake-up transmissions happen in response to different events,
or in different modes. The one that we are most concerned with utilizes the LF wake up
signal. All TPM stems are designed to respond with a UHF data transmission after
receiving a 125kHz LF wakeup signal. Below is a table of some of the different UHF
wakeup’s that are common to stems.
Event
Common Mode Name
Additional Info.
Inflation Pressure changes
Re-measure or Alert mode Usually rapidly repeating wakeups
Motion in the wheel
assembly
Drive mode Can cause wakeups in spinning process
equipment, such as balancers
Time interval Stationary mode Stem automatically wakes up at a programmed
time interval, such as every hour
Stem Receives an LF
Radio Signal
Learn mode, LF mode This is meant for manufacturing purposes and
for use during tire servicing. This is the
method that JR TPM Antennas utilize to
communicate to the stems.

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 7 of 11
Printed: 11/16/22
3:36 PM
LF TRANSMISSION (125KHz)
THIS MODEL ONLY GENERATES A CONTINUOUS LF TRANSMISSION
The JR Automation TPM Antenna systems were developed to utilize
the LF (Low Frequency) transmission to collect data from the TPM
stem. The TPM stem responds with the 125 kHz wakeup signal can
be of 2 different types – Continuous and Modulated LF. Each is
described below.
Continuous LF: A stem requiring a continuous signal or a signal
with no change. It is simply a continuous sine wave signal at a given
frequency (125 kHz in our case). The stem will periodically “listen”
for an LF broadcast. If it hears the broadcast for a specific amount of
time (typically 1-3 seconds) the stem will respond with its UHF
broadcast. This is also commonly referred to as “non-modulated
LF”.
Modulated LF: In this case, the LF signal is turned off and on off
quickly. This creates a pattern of pulses. Generally, a unique pattern
is generated for each stem type. The stems are designed to wake
up only if it hears a signal using its unique pattern. The antenna will
generate this unique pattern over and over until it receives the UHF
wake up response from the stem. The pulse pattern that is
generated by the antenna forms a message packet. An individual
packet is repeated over and over during the LF transmission. This
repetition of the packet gives the stem’s receiving circuits multiple
changes to receive the message, and to validate it. The pattern
within the packet is arranged into a “structure”. Typically, a packet structure consists of several fields, with each
having a specific purpose. This unique data structure is specified by the TPM Valve Stem manufacturer.
Continuous LF
Modulated LF

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 8 of 11
Printed: 11/16/22
3:36 PM
RECEIVING UHF SIGNALS
After the TPM stem receives the wake up signal it will transmit a UHF data package. The stems transmit data in
one of two frequency bands 315 MHz and 433 MHz bands depending on the stems design. Typically, 315 MHz is
used in the U.S. and 433 MHz is used in export vehicles. The frequency used is governed by the FCC in the
United States. Vehicle’s being sold in other countries will be governed by that country’s RF communications
governing body.
Like the Modulated LF message structure, the basic unit for a UHF transmission is a packet. This packet will be
coded in a similar way that the LF data was coded. After a valid wake up signal is received by the stem, it will
typically transmit the same data packet several times in “bursts”. The number of packets in a burst varies from
stem to stem. It can even vary for a single stem type, based on the mode the stem is in. With all the different
stems that have been observed to date, the number of bursts can be in as few as 4 packets repeated to as many
as 16 packets. Repetition of the packets helps ensure the highest probability that data will be received. Also,
receiving the same packet multiple times helps ensure that the data was received correctly, not some falsely
interpreted noise.

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 9 of 11
Printed: 11/16/22
3:36 PM
EXTERNAL CONNECTIONS & LED INDICATORS
The antenna box has 5 external connections. Please see the table & pictures below:
Connection Description
Function
Power
Provide 24 VDC power to antenna system
RS485 Provide RS485 Communication to the antenna from a system
controller (provided by System Integrator)
Antenna 1 Connection for a 315MHz or 433 MHz receiver antenna. Connected to
receiver 1
Antenna 2 Connection for a 315MHz or 433 MHz receiver antenna. Connected to
receiver 2
LF Antenna Bulkhead
Provides conduit connection for LF transmission antenna coil wiring
Power & RS485 Connection
LF Antenna Bulkhead

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 10 of 11
Printed: 11/16/22
3:36 PM
In addition to the external connections, the Antenna Enclosure has 4 indicator LED’s:
LED Description
Function
LF On
Illuminates when the antenna system is transmitting an 125KHz LF signal
Receiver 1 Momentarily flashes whenever a valid UHF packet is received from a TPM valve
stem, on receiver 1 (antenna 1)
Receiver 2 Momentarily flashes whenever a valid UHF packet is received from a TPM valve
stem, on receiver 2 (antenna 2)
Power on
Illuminates when the antenna is supplied with 24VDC
Receiver Antenna Connections & LED's
ANTENNA MOUNTING
The antenna is typically mounted on an adjustable stand that is sold as a separate accessary. The stand also
holds the antenna enclosure, which is mounted on a backplate. Typically, this will be provided by the Automation
System Integrator.

1000 Brown Rd.
Auburn Hills, MI 48326
248.754.1900
jrautomation.com
Continuous Antenna User Manual - Canada
Prelim 1
Page 11 of 11
Printed: 11/16/22
3:36 PM
APPENDIX A: PRODUCT DATA SHEET
The table below summarizes the general product data and specifications:
Attribute:
Data:
Manufacturer Name (Legal Entity)
Esys Automation LLC
Model # TPM-CW-300 (variants: TPM-LA-300-000 &
TPM-SA-300-000)
Brand Name (Marketed by)
JR Automation
Country of Origin
USA
Country of Assembly
USA
Trade Name
Large Continuous Antenna
General HS Code Category (Trade Code)
8517.62
Mexico HS Code (Trade Code)
8517.62.99
Low Frequency Transmission (LF)
125 KHz
Ultra High Frequency Receivers (UHF)
315 MHz and 433 MHz
Input Voltage
24 VDC
External communication interface protocol
RS485 Serial
Product Packaging
No retail packaging included