Antaira LMP-1802G-SFP 18-Port Gigabit Managed DIN Rail Ethernet Switches with 16x PoE+ (240W), 2x SFP and Extended Temperature Options

Large camera and sensor counts tend to sit in the cabinets furthest from the control room, where a copper uplink either runs out of distance or picks up noise from nearby plant. The Antaira LMP-1802G-SFP series handles both problems in one DIN-rail unit: an 18-port Light Layer 3 managed industrial PoE+ switch with 16 powered copper ports for local devices and two fiber slots for the run back, or for a fiber ring between cabinets.

Every LMP-1802G-SFP has sixteen 10/100/1000 RJ45 ports with IEEE 802.3at/af PoE+ at up to 30 W each, sharing a 240 W budget, and two 100/1000 SFP slots for single-mode or multi-mode modules. Store-and-forward switching runs on a 36 Gbps fabric with an 8K MAC table and 9.6K jumbo frames. The firmware covers 802.1Q VLANs, QoS, IGMP v1/v2/v3 snooping, LACP, Modbus TCP and broadcast storm protection, adds static routes and DHCP Option 82, and uses ITU-T G.8032 ERPS to restore the ring in under 50 ms. 802.1X, SNMPv3, HTTPS, SSH and port lock secure access, and an RS232 console and USB backup speed up unit swaps.

The series comes in two temperature grades. The LMP-1802G-SFP is the standard build, rated -10 °C to 70 °C for heated or indoor cabinets. The LMP-1802G-SFP-T is the extended temperature build, rated -40 °C to 75 °C for unheated outdoor enclosures. Within the Antaira range, the LMP-2004G-SFP series raises the fiber count to four SFP slots, the LMP-1600G series drops the fiber for 16 copper PoE+ ports only, and the LMX-1802G-SFP series offers the same port layout without PoE.

Power comes in on redundant 48 to 55 V DC inputs with overload current and reverse polarity protection, the switch draws 16.1 W, and a relay contact reports power or port faults. Both LMP-1802G-SFP models run fanless in an IP30 metal case for DIN-rail or wall mounting and carry Antaira’s 5-year warranty. Antaira lists FCC, CE, UL 61010-1 and NEMA TS2 approvals, with IEC 61850-3 Edition 2.0 for substations, and names power and utility, water treatment, oil and gas, factory automation, ITS and security surveillance as target networks, where the series suits large device counts with fiber uplinks.