Antaira LMP-2804G-4XS-24 28-Port 10G Managed Rackmount Industrial Switches with 24x PoE+ (720W), 4x 10G SFP+, 12-55V DC Input and Extended Temperature Options

Plenty of industrial racks have no 48 V DC rail, only the 12 or 24 V supply that already feeds the control gear, which usually rules out a large PoE switch. The Antaira LMP-2804G-4XS-24 series takes 12 to 55 V DC, so a rack-mount Layer 3 PoE+ switch with 24 powered ports and 10G fibre can run from the supply already in place, with the PoE budget scaling to the voltage available.

Every LMP-2804G-4XS-24 has twenty-four 10/100/1000 RJ45 ports with IEEE 802.3at/af PoE+ at up to 30 W each, with the budget set by input voltage at 150 W on 12 V DC, 300 W on 24 V DC and 720 W on 48 to 55 V DC under Antaira’s iPoE budget control. Four SFP+ slots run at 1, 2.5 or 10 Gbps with single-mode or multi-mode modules. Switching runs on a 128 Gbps fabric with a 32K MAC table and a 32 Mbit buffer. Layer 3 routing covers static routes, OSPFv2/v3, RIPv2/RIPng and VRRPv2/v3, and ITU-T G.8032 ERPS, STP, RSTP, MSTP and LACP handle redundancy. PoE scheduling, output limits and alive check manage the ports, and RADIUS, TACACS+, 802.1X, ACLs and IP Source Guard secure access.

The series comes in two temperature grades. The LMP-2804G-4XS-24 is the standard build, rated -10 °C to 65 °C for control rooms and heated equipment rooms. The LMP-2804G-4XS-24-T is the extended temperature build, rated -40 °C to 75 °C for unheated buildings and shelters. Within the Antaira range, the LMP-2804G-4XS series is the 48 to 55 V DC version with a fixed 720 W budget, and the LMP-2812G-4X8S series trades eight PoE ports for eight more fibre slots.

Both LMP-2804G-4XS-24 models run fanless in an IP30 metal case for a 19-inch rack, draw 40.5 W and carry Antaira’s 5-year warranty, with a relay contact and redundant inputs protected against overload current and reverse polarity. Antaira lists FCC, CE, UL 61010-1 and UL Class 1 Division 2 approvals and states NDAA and TAA compliance, with a Telcordia MTBF of 140,430 hours for the low-voltage models. Antaira describes the design for harsh industrial conditions, and the Class 1 Division 2 approval suits racks in hazardous locations where routing, PoE and 10G fibre are needed together.