Antaira LNX-800A 8-Port Fast Ethernet Unmanaged DIN Rail Switches with Extended Temperature Options

A control cabinet with more than a few networked devices soon fills a five-port switch, and adding a second switch means more wiring, more power terminals and another point of failure. The Antaira LNX-800A series puts eight ports on one DIN-rail unit: 8-port Fast Ethernet unmanaged DIN rail switches that need no set-up and can run from either a DC or a 24 V AC control supply.

Every LNX-800A shares the same design. Eight 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, a 2K MAC address table and IEEE 802.3x flow control. Redundant inputs on a removable 6-contact terminal block accept 12 to 48 V DC or 24 V AC, with reverse polarity and overload protection, and each switch draws 5 W. Surge protection to 2,000 V DC, ESD protection to 6,000 V DC and one relay output for power failures or port breaks are standard. A 1.488 Mpps packet throughput keeps all eight ports at line rate, and with no management interface there is no configuration to back up or restore, so a spare from stores can replace a failed unit quickly and the cabinet returns to service as it was.

The series offers two temperature grades. The LNX-800A is the standard build, rated -10 °C to 70 °C for indoor control cabinets. The LNX-800A-T is the extended temperature build, rated -40 °C to 75 °C for unheated outdoor enclosures and harsh weather. For damp or corrosive air, the LNX-800A-T-CC pairs the extended rating with conformal coated circuit boards, and the LNX-800AG series moves all eight 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-800A series as UL Class 1 Division 2 certified, with UL 60950-1, UL 61010-1, FCC, CE and RoHS, and backs it with its 5-year warranty. Antaira positions these DIN rail switches for industrial automation, outdoor applications and harsh weather, and the AC input option makes the LNX-800A series a practical choice for cabinets that already carry a 24 V AC supply.