Cudy 5-Port Gigabit PoE Industrial Network Switch, 802.3af/at PoE, DIN-Rail IP40, Polarity Reverse & Short Circuit Protection, Broadcast Storm Prevention, IG1005P (Power Supply Not Included)

Built with a industrial-grade design and components, the device achieves Level 4 EMC to withstand surge and ESD from power and Ethernet ports. The industrial-grade ICs, together with extra heatsink design, allow stable operation in extreme temperatures and ensures long-term durability.
The switch supports dual DC inputs (4457V) for extra redundant protection. It also includes reverse-polarity and short-circuit protection to ensure stable operation in complex power environments.
The wave-like heatsink not only improves heat dissipation but also enhances structural rigidity. Internally, the PCB and components are reinforced with extra mounting points for anti-vibration supports.
Turn on the Watchdog function to monitor port activity. If a connected device freezes and stops transmitting data for 5 minutes, the Watchdog will automatically reboot the corresponding PoE port.
Protect the network's bandwidth from abnormal broadcast activities such as ARP attack. Once the broadcast packets flood from a port, the port will be automatically shut down.
For long-distance networking, enable the Extend mode to connect clients up to 250 meters away by limiting the port speed to 10 Mbps.
Turn on the VLAN mode to prevent client-side hacking, preventing sensitive data from leaking. The downlink clients will only be able to communicate with the uplink devices.
Survives Heat, Cold, Surge, and ESD Electrical & Physical Robustness Dual DC Inputs. 44-57V Voltage Range. Rugged Casing. Reinforced Construction. Essential Features for Reliable Network Operation PoE Auto Recovery Suppress Broadcast Storm Extend for 250 m Transmission VLAN Isolates Downlink Ports for Improved Safety