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The need
The site has six greenhouses of about 800 m each, with a climate computer per house, temperature and humidity sensors, CO2 probes, and a camera to watch crop and labour. The climate computers were on serial links to the packing shed, so readings arrived late and a sensor fault was found by walking the house. The office wanted one screen for all six houses without a second cabling run to each.
What was specified
| Model | Qty | Role in the project |
|---|---|---|
| RS1008K-P8-2S-M | 6 | One per greenhouse, PoE for the climate gateway, sensor gateway and crop camera |
| RS1008K-2S-WI | 1 | Collector in the packing shed, joins six houses over fibre to the office |
| RS1001KP-1S | 4 | PoE converter for the four sensor posts at the far end of the long houses |
Why that split
A greenhouse is a single managed area, so one switch per house is enough and the fibre count stays at six. PoE on that switch feeds the climate gateway and the camera without a socket in a wet house, and the sensor posts at the far end use a converter because the run from the house switch is long and a second switch there would be idle. The collector gives the office one link for all six houses, so a house can be isolated for maintenance without disturbing the others.
Result
- Climate readings reach the office continuously instead of on a serial poll.
- A sensor fault shows as a port and a reading, not a walk down the house.
- One house can be isolated for crop change without affecting the other five.
Quantities in the table are the planned build, not a bill of materials for a specific tender.
