Note: Do not install an on/off switch on the main (red) battery line, or connect the white ignition sense wire to the red battery wire. Both configurations bypass the MP modem's controlled shutdown sequence, and may cause data loss and subsequent power-on problems. Incorrect wiring may also drain the vehicle battery.

Hardware and Software Installation

The MP modem’s power on/off is controlled by the ignition sense line (white wire) using internal software, rather than a hard on/off switch on the red power line. The red, black, and white wires connect to the battery and ignition switch as shown in the power harness wiring diagram.

Note: The battery cable used for a car, truck, or other mobile connection must be less than 3 meters in length.

Switch (vehicle

Red wire

5 A fuses (on red

ignition key, or

(Battery)

and white only)

separate)

 

MP modem

 

 

White wire

Black unfused wire

(Ignition sense)

(Ground)

Vehicle battery

Figure 3-7: Wiring for the power harness.The white wire is the ignition sense.

When the white ignition sense line is pulled high (5 to 36 V), the MP modem powers on.

When the ignition sense line is pulled low (less than 2 V), the MP modem performs a controlled shutdown sequence (under software control), de‐registering and saving any relevant operational data before powering off.

Ignition sense options

There are three ways to connect the ignition sense wiring:

Engine on only. Connect the white ignition sense wire to the vehicle’s ignition switch so that the MP modem is powered on only when the ignition key is switched to the full “On” position, that is, when the engine has been started. In this configuration, the engine must be running for the MP modem to be on.

—or—

Accessory on. Connect the white ignition sense wire to the vehicle’s ignition switch so that the MP modem is powered on when the ignition is switched to “Accessory” mode. In this configuration, the MP modem is on whenever other vehicle electrical devices can be switched on—such as when the radio and windshield fan can run.

 

 

 

 

 

 

 

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Sierra Wireless MP 880W manual Ignition sense options

MP 880W specifications

Sierra Wireless MP 880W is a robust and versatile wireless communication solution designed primarily for the high-demand requirements of industrial and enterprise applications. With its cutting-edge technologies and features, the MP 880W stands out as a reliable solution for IoT connectivity and data transmission.

One of the key features of the Sierra Wireless MP 880W is its multi-connectivity capability. It supports 4G LTE, 3G, and Wi-Fi, enabling users to maintain a consistent and reliable connection regardless of their location. This versatility allows businesses to operate in remote areas while ensuring that critical data is transmitted seamlessly.

The device is equipped with advanced security features including VPN support, firewall capabilities, and secure access protocols. This ensures that sensitive information remains protected against unauthorized access and cyber threats, which is crucial for businesses that rely on data integrity and security.

The MP 880W also boasts high-speed connectivity, capable of reaching download speeds of up to 150 Mbps. This is particularly beneficial for applications that require real-time data analytics or streaming, such as remote monitoring and management systems. The device can handle multiple connected devices simultaneously, making it a suitable choice for environments with multiple IoT devices.

Another notable characteristic of the Sierra Wireless MP 880W is its rugged design, built to withstand harsh environmental conditions. With an extended temperature range and robust housing, the device is suitable for outdoor deployment in industries such as transportation, oil and gas, and agriculture.

The MP 880W provides easy integration with existing IT infrastructure, thanks to its compatibility with various networking standards. Users can deploy it quickly and effectively, minimizing downtime and streamlining operations.

Furthermore, the device offers extensive support for various IoT protocols, making it adaptable for numerous applications. Whether it's for smart cities, asset tracking, or industrial automation, the MP 880W delivers the performance and reliability needed in today’s fast-paced, technology-driven environment.

In summary, the Sierra Wireless MP 880W combines high-speed connectivity, security features, rugged design, and multi-connectivity capabilities, making it a premier choice for industrial IoT applications. Its adaptability to various environments and ease of integration solidify its reputation as a leading wireless communication solution in the market.