Tutorials · Switching
How to Build an Outdoor Industrial Network Cabinet
Design a reliable street or field cabinet: enclosure, DIN-rail switch, 48 V power supply, surge protection, fibre and labelling.
Before you start
- Industrial DIN-rail switch and power supply
- An outdoor-rated enclosure
- Surge protectors and fibre termination
Step by step
Choose the enclosure
IP-rated (for example IP65/66), UV-resistant, sized for 30% spare space, with ventilation or a sunshield for hot climates.
Size the power supply
Switch consumption + full PoE load + 30% headroom (see the PoE budget guide).
Mount on DIN rail
Mount the switch, power supply, fibre terminal and surge protectors on the rail with clear spacing for airflow.
Protect against surges
Install surge protection on the mains feed and on every outdoor copper cable to cameras.
Ground everything
Bond the enclosure, rail and surge devices to a proper earth.
Terminate fibre
Use a small splice box and patch cords to the switch SFPs; protect bend radius.
Label and document
Label every cable and port, keep a laminated diagram inside the door.
Test
Check PoE power, link status, ring failover and temperature on a hot day.
Pro tips
- Use redundant power inputs where the switch supports them.
- Seal cable entries with proper glands, not tape.
FAQ
Frequently asked questions
Why do cabinet switches fail in summer?
Heat. Check the switch's temperature rating, cabinet ventilation and sun exposure.
Keep learning
Related guides
Industrial Ethernet
Read more →ERPS ring
Read more →How to Configure VLANs on a Managed Switch
Separate staff, guests, voice and cameras into their own VLANs: create VLANs, set access and trunk ports, and verify traffic separation.
Read more →How to Set Up Inter-VLAN Routing on a Layer 3 Switch
Route between VLANs at wire speed using switch virtual interfaces (SVIs), a DHCP relay and ACLs that control which networks can talk.
Read more →How to Configure Link Aggregation (LACP) Between Switches
Bundle two or more links into one logical link for more bandwidth and redundancy using IEEE 802.3ad LACP.
Read more →Stuck on a step?
Ask Navijin technical support or an authorised partner for help with your configuration.