ADAM-6520 is a 5-port industrial-grade switch with Ethernet connectivity and from 10 to 100 Mbps transfer rates. (Auto-negotiation). Just like any other product in the ADAM family, ADAM-6520 can bemounted in three different ways: DIN rail, Walland Stack. Solid industrial-grade design assuresreliable operation in common application areaslike:semi-conductor factories, inventory control environments, assembly lines, manufacturing and many more.All modules support a wide voltage range of +10 ~ 30 VDC over the terminal block, and 3,000 VDC surge (EFT) protection ensures that over-voltage is no concern. The wide operating temperature of ADAM-6520 goes from -10 ~ 70°, while ADAM-6520I from -40 ~ 85°. This permits them to be functional in harsh environments.The six inclusive LED indicators make troubleshooting of the modules easier. Each port has a pair of LEDs that indicate link status and port activities. This easily informs users of any collisions, the link status, power failure and data receipts for immediate on-site diagnosis.