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Gateway Placement

System Overview

A Tigo-optimized PV system consists of four key components:

  1. Cloud Connect or Management Unit (MMU)
  2. Gateway
  3. Smart Modules (or other Tigo-equipped modules)
  4. Inverter

The number of Gateways and Cloud Connects/MMUs needed for a system are determined by both the number of modules and the size and layout of the installation.

 

 

Gateway basics

Up to seven Gateways can be connected in series to each Cloud Connect or MMU using RS-485 cable (not included.)


Each Gateway can communicate with up to 120 Tigo-equipped modules.


The communication range of a Gateway has a maximum radius of 50ft (15m). If modules are located more than 50ft (15m) from the Gateway, use additional Gateways.

 

 

Multiple Gateways

For systems with more than 120 modules, or where modules are located more than 50ft (15m) from the Gateway, multiple Gateways can be connected in series. Systems with multiple orientations should have one Gateway on each plane of the array.

Gateways in series

Gateways in series

 

 

Complete Coverage

Obstacles such as chimneys, dormers, and AC units can prevent line-of-sight between a Gateway and a Smart Module, which can reduce the effective communication range of the Gateway. To ensure complete coverage, re-position and/or add Gateways within range and line-of-sight of all modules.

Gateways placed around an obstruction

Gateways placed around an obstruction

 

 

Residential: Sample Gateway Placement

L-shaped house with one Gateway

L-shaped house with one Gateway

 L-shaped house with dormer and two Gateways

L-shaped house with dormer and two Gateways

L-shaped house with multiple orientations

L-shaped house with multiple orientations

Multiple rooftops

 

Additional Information

During the Discovery process, the Cloud Connect or MMU will assign Smart Modules to the best available Gateway based on wireless signal strength. When designing a system with multiple Gateways, allow some overlap in the communication range between neighboring Gateways for best results.


Gateways should always be mounted to the frame of a module whenever possible, but a Gateway can also be mounted in an attic depending on the roofing materials used. Not recommended for metal roofing.

 

 

 

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