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Sierra Wireless MP 875 manual Ground the power harness, Power connections, Correct wire splicing

Models: MP 875

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MP875 Modem User Guide

Note: If you choose to install a separate switch, it must be connected to the white ignition sense wire, not the red battery wire, so that the MP modem can perform a controlled shutdown, as described on page 32.

Note: Ensure that all wires are correctly spliced or crimped. Improper grounding and wire connections may lead to equipment damage or safety hazards.

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—or—

•Separately switched. Connect the white ignition sense wire to a separate switch mounted in a convenient location, which allows the MP modem to be turned on or off regardless of the position of the ignition key. In this configuration, the MP modem can be powered on or off even if the key is not in the ignition.

The MP modem also has a “Power Off Timer”. When power is removed from the ignition sense wire, the MP modem remains on for the period defined by the Power Off Timer, up to a maximum of 240 minutes. The Power Off Timer is configured in 3G Watcher. See the online help in 3G Watcher for details.

Ground the power harness

You must connect the black ground wire from the power harness to the grounded negative terminal of the vehicle battery, or another appropriate electrical ground. Failing to ground the power harness properly may damage the MP modem, may cause radio interference, and can be dangerous. (See “Ground the MP modem” on page 28.) The ground wire in the MP modem power harness is not fused.

Power connections

Connecting the MP modem’s power wires properly is important—poor connections can damage the wiring, the MP modem, or the vehicle’s electrical system, and can be dangerous.

Correct wire splicing

You can splice the wires of the power harness to the car wiring. Proper splicing is essential to reliable operation of the MP modem. Do NOT use “quick taps”; they reduce the integrity of the wire that is cut and let moisture into the cable.

An appropriate method of splicing is to strip a small portion of the insulation, solder the wires together, then heat‐shrink the connection to re‐insulate it.

Crimp terminals

If suitable terminal connection points are available on the vehicle for power and ignition sense, then using automotive crimp terminals is recommended. When using crimp terminals, do not leave bare wire exposed. Do not use a crimp terminal for more than one wire unless it is designed for that purpose.

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Sierra Wireless MP 875 manual Ground the power harness, Power connections, Correct wire splicing, Crimp terminals
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MP 875 specifications

The Sierra Wireless MP 875 is a cutting-edge device designed to cater to the needs of modern IoT applications and mobile networking solutions. This rugged mobile router stands out for its robustness, versatility, and advanced features, making it an ideal choice for industries such as transportation, public safety, and remote work environments.

At the heart of the MP 875 is its support for both LTE and advanced LTE-A technologies, providing high-speed internet access with speeds reaching up to 300 Mbps. This enables seamless connectivity for multiple devices, supporting applications such as video streaming, real-time data transfer, and cloud-based solutions. The dual-SIM capability enhances network reliability and allows for automatic failover, ensuring continuous connectivity even in remote locations.

One of the key characteristics of the MP 875 is its rugged design, built to withstand tough environmental conditions. The IP67-rated casing ensures protection against dust and water, making it suitable for deployment in harsh outdoor settings. Its wide operating temperature range further enhances its versatility, allowing it to function effectively in extreme heat or cold.

Another notable feature is the onboard Wi-Fi, which supports both 2.4 GHz and 5 GHz bands, enabling the connection of multiple devices with minimal interference. This dual-band functionality provides users with the flexibility to optimize their wireless connections based on their specific requirements. Additionally, the MP 875 includes comprehensive security features, such as VPN support, firewall protection, and advanced encryption protocols to safeguard sensitive data.

Moreover, the device supports various IoT applications, including fleet management, asset tracking, and telemetry. With built-in GPS capabilities, users can easily track the location of their assets or vehicles in real-time, enhancing operational efficiency and safety.

The MP 875 also boasts a user-friendly management interface, allowing for straightforward configuration and monitoring of devices. Remote management capabilities facilitate streamlined updates and troubleshooting, reducing downtime and improving overall productivity.

In conclusion, the Sierra Wireless MP 875 is an advanced mobile router that excels in providing reliable, high-speed connectivity in a rugged form factor. Its blend of LTE technologies, robust design, and comprehensive security features makes it an exceptional choice for businesses looking to leverage the power of IoT and mobile networking. Whether for transporting goods, managing public safety operations, or enabling remote work solutions, the MP 875 is a reliable partner for modern connectivity needs.