Tractor Interface Module
Installation Instructions
Switch Input (TIM-SI) 821-7002
Installation Instructions
Tractor Interface Module Switch Input (TIM-SI) 821-7002
Getting Started ....................................................................................... 1
Installing the TIM ..................................................................................... 2
Testing the TIM ........................................................................................ 4
On-Board Computer Provider Compatibility ................................................... 4
Certifications ....................................................................................................... 5
WARNING! Always use appropriate personal protective equipment (ppe) during the installation and
maintenance of the sensors and or related systems on a vehicle. If you have questions regarding which
ppe are appropriate, please consult OSHA 3151-12R 2003 to determine appropriate equipment.
Installation Instructions
Switch Input (TIM-SI) 821-7002
Getting Started
The Tractor Interface Module (TIM-SI) is an intuitive
device that interfaces between the Trimble on board
computer and the BatRF wireless TPMS sensors.
It wirelessly receives the tire pressure information
transmitted from the BatRF AirBAT TPMS sensors
to provide alerts to the driver via the TIM-SI mounted
LED light and to remote personnel via email or
SMS text messages (if supported by the On Board
Computer (OBC) provider). To learn more about
the features of this product the User Guide can be
downloaded from the BatRF website at www.batrf.
com. Select Library -> Installation Instructions. To
enable the remote alert features of the product
consult the OBC provider documentation.
The TIM-SI ships with the following:
1. Tractor Interface Module - Switch Input
2. USB 4 wire power/alert cable
and GPS Antenna
1.
2.
USB 4-Wire Power Cable
(03-821-0160)
GPS Antenna
(03-821-0008)
3. Adhesive backed Dual Lock mushroom
Tape and primer to mount the TIM-SI
3.
Primer
Dual Lock
Mushroom Tape
1Tractor Interface Module Installation Guide
Installing the TIM-SI
1. Locate the On Board Computer (OBC).
TIP – Typical mounting locations for the OBC are:
a. Behind or under the passenger seat
b. Behind or under the driver’s seat
c. For Sleeper Cabs, in the storage area under the
bed accessible from the outside of the truck, or in
the closet near the bed.
2. Select a Mounting Location for the
TIM-SI-SI.
TIP
– Choose a location that will allow for easy routing
for the cable that runs between the TIM-SI-SI and the
OBC and between the TIM-SI-SI and the GPS Antenna.
IMPORTANT – The TIM-SI-SI wirelessly communicates
with the Airbat TPMS sensors; thus the mounting
location must meet the following requirements:
DO:
Mount the TIM-SI-SI at within 1” of window height
or higher in the cab.
DO NOT:
Mount the TIM-SI-SI where metallic objects are
within 1” of the front face next to the upper right
hand corner of the box (where the receiving antenna
is located).
Mount the TIM-SI-SI within 12 inches of other
wireless transmitters (in-cab WiFi, Blu-tooth and
microwave ovens).
Mount the TIM-SI-SI outside the cab of the tractor,
the enclosure is not watertight.
Typically the TIM-SI-SI is mounted above the passenger
door (sleeper cabs) or on or near the lower passenger
side of the rear window (day cabs).
The TIM-SI-SI also may be mounted directly onto the
rear window. If this is the preferred mounting method, it
should be mounted on the passenger side in a position
that does not obstruct the drivers view.
Day Cab Example
Sleeper Cab Example
2
Tractor Interface Module Installation Guide
3. Install the TIM-SI-SI
In this step, you will use the supplied locking tape to
physically mount the TIM-SI unit in the vehicle. Before
applying the adhesive side of the tape to a surface,
the surface should be free and clear of any oil, dust or
other materials. A primer swab is supplied to clean the
surface prior to mounting.
To open the primer, squeeze the vial at the center
where a round dot is located. Use the tape primer to
clean the mounting surface on the back of the TIM-SI
and the desired mounting location. Next, peal the Dual
Locking Mushroom head Tape adhesive back strip and
adhere a piece to each end of the back of the TIMSI (see example photo). Mount the mating pieces to
the TIM-SI and then remove the backing adhesive strip.
Press the TIM-SI firmly to set the adhesive.Press the
TIM firmly to set the adhesive.
4. Install the cable between the TIM-SI
and the OBC.
Both power and the alert Output signal are run through
this cable (eliminates the need for a separate power cable).
Dual Lock Mushroom Tape
mounted to the back of TIM-SI unit.
4a. Plug the USB Type A end of the cable into the
“+12VDC Alert” connector on the left side of the
TIM-SI-SI.
4b.
Connect the pigtail end of the cable to the OBC
and power.
Black Wire: Chassis Ground
Red Wire: +12VDC ignition power; 0.15
Amps Max
White Wire: Alert Output; connect to the
OBC Switch Input
Green Wire: Optional Tamper Detect Output;
connect to a different OBC Switch input. A
100K ohm resistor must also be connected
between the switch input and +12VDC power
(battery or ignition);
5. Install the GPS Antenna and Plug
into the TIM-SI.
Mount the GPS antenna in any orientation where is has a
good view of the sky usually near the windshield or on the
dashboard is a good location. It can be mounted using
the provided adhesive tape or if mounted externally on a
metallic surface (internal magnet will hold in place).
4a
5
Plug the GPS cable into the “GPS” connector and turn
the nut until it is finger tight + 1/8 turn with a wrench.
5
3Tractor Interface Module Installation Guide
Testing TIM– SI Installation
It is recommended that each installation be tested
to ensure proper operation. To test the TIM-SI
reader performance after installing all the AirBAT
TPMS wheel-end sensors and the TIM-SI, follow
these steps:
1.
Verify Proper Installation
Visually ensure the following:
a. The GPS Antenna is connected to the TIM-
SI (SMA connector labeled “GPS”); the end
of the cable with the amplified antenna
(1¾” x 1¾” x ½” square box) is mounted
where is has a good view of the sky (to
receive the signal from the GPS satellites).
the satellite signals (GPS must have view of the
sky with no roof overhead). After the test drive,
unplug the “+12 VDC Alert” connector found on
the left side of the TIM-SI. Wait for about 10
seconds until the Low Tire Alert light has stopped
blinking blue and has turned a solid red or the
light is off. Plug the cable back in and watch the
light blinks. The first blink may have a short flash
of all colors but then is green for about 2 seconds
confirming initial boot successful; then count the
number of blue blinks that follow which indicates
the number of sensors that are bound to the
TIM-SI. The number of blue blinks should match
the number of AirBATs that were mounted on the
vehicle during the drive to bind the AirBATs.
3.
Test the TPMS System
b. The TIM-SI is mounted at window height or
higher for good receive signal strength.
c. When powered on the Low Tire Alert light
may have a short flash of all colors followed
by green for about two seconds and then
goes out. If it flashes red after the green
this indicates that the GPS antenna is either
drawing too much current (replace it) or
drawing too little current (not connected;
connect or replace).
2.
Bind The AirBAT Sensors to the
TIM-SI
To bind the AirBATs to the TIM-SI, drive the
vehicle for at least 1 mile (straight line distance;
i.e. do NOT circle the block six times to equal 1
mile). For test purposes only, ensure the TIM-SI
is powered for at least 2 minutes prior to driving
to ensure the GPS has adequate time to acquire
First verify that the OBC system provider
(Cadec, Qualcomm etc.) is properly configured
for that vehicle to send the alert all the way to
the back office (via logistics web page or email).
At the vehicle, loosen one of the AirBAT hoses
to drop the pressure and verify that the AirBAT
is blinking red. Verify that the TIM-SI Low Tire
Alert light begins blinking to indicate the low
pressure alert (should occur within 30 seconds
of AirBAT beginning to blink). Finally, verify that
the alert was received via the OBC system
provider (may take up to ten minutes depending
on the OBC provider).
If you are not successful with the installation and
need support, please contact your sales agent or
STEMCO’s customer service and technical support
line at (800) 527-8492, select option 2.
On-Board Computer Provider Compatibility
The TIM-SI was designed to provide a universal interface that will
work with most OBCs supplied to the market today. Contact STEMCO
customer support for the latest compatibility list if the OBC used by
your fleet does not appear in the list below.
Compatible Products Model Numbers:
Trimble TVG-660
4
Tractor Interface Module Installation Guide
Certifications
FCC (USA)
This unit complies with Part 15 of the FCC Rules. 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.
FCC ID: SRA-821
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
NOTE: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this
equipment. Such modifications could void the user’s authority to operate the equipment.
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons
and must not be co-located or operating in conjunction with any other antenna or transmitter. Users and installers must be
provided with antenna installation instructions and transmitter operating conditions for satisfying Rf exposure compliance.
Should you need any additional assistance with any problems or issues please contact STEMCO Customer Service at (800)
527-8492.
Industry Canada
Contains/Contient IC: 7413A-821
NOTICE:
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.
Avis: Cet appareil est conforme avec Industrie Canada RSS standard exempts de licence (s). Son fonctionnement est soumis
aux deux conditions suivantes: (1) cet appareil ne peut pas provoquer d’interférences et (2) cet appareil doit accepter toute
interférence, y compris les interférences qui peuvent causer un mauvais fonctionnement du dispositif.
This document may be referenced by STEMCO Part# 09-930-8212
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two
STEMCO, BAT RF, HandBAT,
AirBAT and TracBAT are
trademarks of STEMCO LP
© 2014 STEMCO LP
PN# 09-930-8210 - 06/14
an EnPro Industries company
STEMCO - USA
P.O. Box 1989
Longview, TX 75606-1989
(903) 758-9981 • 1800-527-8492
FAX: 1-800-874-4297
www.stemco.com
STEMCO - CANADA
5650 Timberlea Blvd. Unit B
Mississauga, ON L4W 4M6
(905) 206-9922 • 877-232-9111
FAX: 877-244-4555
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