Pre-Install Guide

Introduction

This document provides some pre-install tasks that can be done to make installation of LCM2M devices easier. These tasks are organized into groups, including network/IT considerations such as firewall settings, mounting considerations, how to ensure proper power is supplied to the devices, and making sure the device will receive proper signal(s) from a piece of equipment.

Network/IT

LCM2M devices require stable network connectivity to function properly. They also contact Cloud servers outside the local network, and some firewalls may block this access. Below is information about network requirements, and what ports and URLs the devices will try to access.

Ensure that there is wireless network coverage in each location where a Caddis device will be placed. If it will not be possible to ensure that network coverage or reliability will be acceptable, contact LCM2M support about purchasing a wireless gateway device.
Ensure that there is a mounting location for an antenna with a magnetic base on the outside of the equipment cabinet. Mounting antennas inside equipment cabinets leads to problems with device reliability and data quality.
Ensure that the following URLs and ports are not blocked by a firewall on the wireless network.
- *.iot.us-east-2.amazonaws.com:8883 (TCP SSL/TLS)
- iot.lcm2m.com:8883 (TCP SSL/TLS)
- dash.mongoose-os.com:443 (TCP/HTTP SSL/TLS)
- time.google.com:123 (TCP)

Mounting

LCM2M devices are typically installed in or on an equipment cabinet. Below are some things to take into account when mounting an LCM2M device.

Ensure that there is space on a DIN rail either on the inside or outside of the equipment cabinet. The Caddis device has a DIN rail clip on the back of the enclosure for mounting.
If the device is being mounted inside a cabinet, ensure that provision has been made to route an antenna cable with a 10mm (23/64 inch) connector on the end for an externally mounted antenna.

Power

LCM2M devices require clean and stable power to function properly.

Ensure that 24 VDC power is available for the Caddis device on the equipment. A separate power supply will need to be installed if 24 VDC power is not available.
Ensure that 24 VDC power is properly grounded.

Signal

Locate a 24 VDC or 120 VAC signal from the equipment that is indicative of whether the equipment is running or down. If the signal voltage is something other than 24 VDC or 120 VAC, and relay will need to be installed between the equipment output and the Caddis device.
Ensure that the signal is properly grounded.