XIRGO XT4392 Asset Tracking and Tire Pressure Monitor User Guide

XIRGO XT4392 Asset Tracking and Tire Pressure Monitor

Product Information

XT4392 User Guide
The XT4392 User Guide provides supplemental information about the XT4392.

Functional Description
The XT4392 is a device with various functionalities.

Mechanical Specifications

• Dimensions: 2.07 x 2.46 x 7.6 inches (52.7 x 62.6 x 193 mm)
• Weight: TBD
• Operating Temperature: -22 to 158 degrees Fahrenheit (-30 to 70 degrees Celsius)
• Charging Temperature: 32 to 140 degrees Fahrenheit (0 to 60 degrees Celsius)
• Supported MNO: AT&T, Verizon

General Operation
The XT4392 has a specific installation procedure and electrical characteristics.

Installation Procedure
The XT4392 can be wire-tied to the asset under the trailer chassis beam using its own Wiring Harness. The label side must face away from the metal during installation. The zip tie must pass through the holding features of the unit. On the other side, there are ribs to hold the unit on the underside for mounting on the asset.

Electrical Characteristics
The XT4392 has specific maximum ratings and charging circuit details.

Maximum Ratings
The device has certain limits that it can be subjected to without permanently damaging it. Extended exposure to these maximum ratings may adversely affect device reliability. It is not guaranteed to operate properly at these maximum ratings.

Idle
| 68 min (mA)| 91 max (mA)| Active Network
| 58 min (mA)| 81 max (mA)| Active Network – GPS Off
| 365 min (mA)| 380 max (mA)| Battery Charging – FAST MODE

Charging Circuit
The XT4392 uses a Synchronous Step-Down Battery charger with switchable charge rates. At 12V, the device may draw up to 380 mA from power supply.

FUNCTIONAL DESCRIPTION

OVERVIEW
The XT4300 is used for asset tracking and tire monitoring services for fleets. The tire pressure monitoring capabilities reduce tire-related costs, which subsequently reduces fleet costs from tire replacement and expensive roadside service. The design engages the challenging industrial vehicle environment, minimizing downtime and avoiding replacement expenses. The XT4300 features a powerful 32-bit microprocessor and flexible power management algorithm, providing the capability of periodic reporting of tire health, status, and location of remote assets. The device is designed to allow GPS tracking under extreme conditions and leverages the latest tire pressure monitoring technology. The weatherproof case (meets IEC 68-2-27 environmental standard and is IP67 certified) allows the XT4300 to be used for a multitude of applications.

MECHANICAL

Mechanical

Dimensions| 2.07″ x 2.46″ x 7.6″ (52.7 x 62.6 x 193 mm)
Weight| TBD
Operating Temperature| -22 to 158 degrees Fahrenheit (-30 to 70 degrees Celsius)
Charging Temperature| 32 to 140 degrees Farenheit (0 to 60 degrees Celsius)
Supported MNO| AT&T, Verizon

GENERAL OPERATION

The XT4300 is connected to the vehicle and communicates to the server via the cellular network in one of two operating modes: tracking and snapshot.
While in tracking mode, the device operates in a continuous integration mode where it is receiving GNSS solutions at a rate of 1Hz. When in tracking mode the device default state is ACTIVE, and the device will enter HIBERNATE as a secondary state for low power.
While in snapshot mode, the device enables the GNSS receiver to obtain a 2D positional fix and then turns off the GNSS receiver. This mode will have the GNSS off, the cellular modem off, and the microprocessor in a deep sleep or hibernate mode of operation.
When in snapshot mode the device default state is HIBERNATE and the device will enter ACTIVE to capture the state of the system, environment, and report that data along with data recorded from sensors while in HIBERNATE to the customer’s application server

INSTALLATION PROCEDURE

TERMINOLOGY

INSTALLATION
The Unit can be wire-tied to the Asset under the trailer chassis beam with its own Wiring Harness Connected. The Label Side must look away from the metal while its being installed. The Zip tie must pass through inside the holding features of the Unit.

XT4392 User Guide

On the other side, there are ribs to hold the unit on the underside to mount on the asset.

ELECTRICAL CHARACTERISTICS

MAXIMUM RATINGS
The maximum ratings are the limits to which the device can be subjected without permanently damaging the device. Device reliability may be adversely affected by exposure to absolute-maximum ratings for extended periods.

NOTE: The device is not guaranteed to operate properly at the maximum ratings.

Parameter : Parameter Name : Min : Max : Unit

• V_IN V_IN supply voltage 8.0 30.0 V

Current Consumption (Measured when supplied 12V) : min(mA) : max(mA)

• Idle 31 52
• Active Network 68  91
• Active Network – GPS Off 58 81
• Battery Charging – FAST MODE 365  380

CHARGING CIRCUIT
At 12 V the device may draw up to 380 mA from power supply.
This device uses a Synchronous Step-Down Battery charger with switchable charge rates:

Fast charge
Fast charge is enabled when Main Voltage is above 9.0 V and the temperature is above 0 degrees Celsius (32°F). If Main voltage drops below 9 V, it needs to raise back up to 9.25 V to begin fast charging. Expect to see up to 140 mA from Main Voltage Power supply (At 12.0 V).

Slow charge
Slow charge is enabled when Main Voltage is below 9.0 V or the temperature is between 0 and -20 degrees Celsius (32° to -4°F). The device will enter a No Charge state if the voltage goes below 4.4 V. Expect to see up to 50 mA from Main Voltage Power supply (At 8.0 V).

NOTE: Slow charging may lead to an insufficient charge for long-term operation.

No Charge
The XT4300 battery cannot charge outside of their charging temperature ranges. The device charges between 0 to 45 degrees Celsius (32° to 113°F).
Once the battery charge drops below 3.4 V, the device will enter low battery where it will retain any unsent events but will not generate any new ones. Once the device is charged to 3.6 V or greater, it will publish events retained prior to low battery state and begin generating new ones.

XT4300 Charging Graph

REGULATORY STATEMENTS

FCC:
This device 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

Changes or modifications made to this equipment not expressly approved by Xirgo Technology may void the FCC authorization to operate this equipment.

NOTE: 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.

RADIOFREQUENCY RADIATION EXPOSURE INFORMATION:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

INDUSTRY CANADA
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.

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication..
This radio transmitter (IC:10281A-XT4392, Model Number: XT4392) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.
GNSS Antenna Specifications ; Receive Only

GPS: ≤ 2.5 dBi

GLONASS: ≤ 3.0 dBi

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Peak Realized Gain

XT4392 User Guide

Gain measured with all the Mechanical Elements with 3D printed Enclosures

2.45 GHz Antenna Specifications

Gain measured with all the Mechanical Elements with 3D printed Enclosures

4G LTE Antenna Specifications

The DOC (Declaration of Conformity) is either included in the packaging or can be found at the following link: www.xirgo.com

CONFIDENTIAL AND PROPRIETARY
Disclosure, storage and use subject to non-disclosure agreement

References

• Telematics & Data Analytics | Sensata INSIGHTS
• Telematics & Data Analytics | Sensata INSIGHTS

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