Antaira LNX-500A 5-Port Fast Ethernet Unmanaged Industrial Ethernet Switches with Extended Temperature Options

Most automation cabinets need only a few Ethernet links, between a controller, an operator panel and some remote I/O, and the switch that joins them should be the last thing anyone has to think about. The Antaira LNX-500A series covers that job with 5-port Fast Ethernet unmanaged industrial Ethernet switches that mount on a DIN rail, need no set-up and report their own faults.

Every LNX-500A shares the same design. Five 10/100Base-TX RJ45 ports auto-negotiate speed and duplex and support auto MDI/MDI-X, with store-and-forward switching on a 1.0 Gbps fabric and a 2K MAC address table. Redundant 12 to 48 V DC inputs connect through a removable 6-contact terminal block, with reverse polarity protection and a resettable overload fuse, and each switch draws 3 W. Ports are protected against surges to 2,000 V DC and ESD to 6,000 V DC, and one relay output alerts maintainers to a power failure or a port break. Because there is no management interface, there is no configuration file to back up, no password to lose and nothing to re-enter when a unit is swapped, so a technician can fit a spare from stores and the network returns as it was.

The series comes in two temperature grades. The LNX-500A is the standard build, rated -10 °C to 70 °C for indoor control cabinets. The LNX-500A-T is the extended temperature build, rated -40 °C to 75 °C for unheated outdoor enclosures and harsh weather. Where the cabinet holds more devices, the LNX-800A series offers eight ports in the same style of case, and the LNX-500AG series moves the five ports to gigabit.

Both models use an IP30 metal case that mounts on a DIN rail or a wall, rated to IEC 60068-2-27 shock and IEC 60068-2-6 vibration. Antaira lists the LNX-500A series as UL Class 1 Division 2 certified, with UL 60950-1, FCC, CE and RoHS, and covers it with its 5-year warranty. Antaira aims these unmanaged industrial switches at industrial automation, outdoor applications and harsh weather environments, and the LNX-500A series is a good fit wherever a small cabinet needs a handful of reliable Fast Ethernet links and an alarm contact.