Antaira LNP-0702G-SFP 7-Port Gigabit Unmanaged PoE Switches with 4x PoE+ (120W), 2x SFP and Extended Temperature Options

Gigabit devices at the edge of a network, each needing power as well as data, push a small switch harder than Fast Ethernet ever did, and the run back to the core is often fibre. The Antaira LNP-0702G-SFP series puts both in one slim DIN-rail unit: industrial unmanaged PoE+ switches with four gigabit PoE+ ports, one further gigabit copper port and two SFP slots on a 14 Gbps switching fabric.

Every LNP-0702G-SFP switch has four 10/100/1000Base-T RJ45 ports with IEEE 802.3af/at PoE+ at up to 30 W each, one further gigabit RJ45 port without PoE, plus two 100/1000 dual-rate SFP slots, so the fibre type and reach follow the transceiver fitted. Switching is unmanaged and store-and-forward on a 14 Gbps fabric with an 8K MAC address table, 9.6 KB jumbo frames and a 4 Mbit memory buffer, so the switches pass traffic and power devices with no set-up. Power arrives on 48 to 55 V DC redundant inputs on a removable terminal block. The PoE budget is 100 W at 48 V DC and 120 W at 55 V DC, enough for all four ports at 30 W when the supply runs at 55 V. One relay output gives a power failure warning, and reverse polarity protection and overload current protection with a slow-blow fuse guard the input side.

The series comes in two temperature builds. The LNP-0702G-SFP is the standard build, rated -10 °C to 70 °C, for heated or indoor cabinets. The LNP-0702G-SFP-T is the extended temperature build, rated -40 °C to 75 °C, for unheated outdoor enclosures and other sites that see hard frosts. Both share the same ports, power input and PoE budget. For 10/100 copper on the same layout, the LNP-0702C-SFP series is the matching series.

Antaira designs the series for rugged, harsh industrial environments. The LNP-0702G-SFP series is housed in an IP30 metal case for DIN-rail mounting, with wall-mount hardware included, and is rated for shock to IEC 60068-2-27 and vibration to IEC 60068-2-6. Antaira lists the series as UL Class 1 Division 2 and UL 61010-1 certified, with CE and FCC marks and RoHS compliance, and both builds carry Antaira’s 5-year warranty. In practice, the choice between the two builds comes down to the coldest temperature the installation will see.