Antaira LMX-2804G-4XS 28-Port 10G Managed Rackmount Industrial Switches with 4x 10G SFP+ and Extended Temperature Options

A rack cabinet at the heart of an industrial site usually collects copper links from the floor, routes between their VLANs and passes the traffic to a 10G backbone. The Antaira LMX-2804G-4XS series is a family of Layer 3 managed rackmount industrial switches built for the job: fanless, on redundant DC power and available in an extended temperature build.

Each LMX-2804G-4XS has 24 10/100/1000BASE-T RJ45 ports and four 1G/2.5G/10G SFP+ slots that take single-mode or multi-mode transceivers, switching store-and-forward on a 128 Gbps fabric at 95.232 Mpps with a 32K MAC table, a 32 Mbit packet buffer and 10K jumbo frames. Layer 3 routing covers static routes, OSPFv2/v3, RIPv2/RIPng and VRRPv2/v3, with ARP, NAT and DHCP option 82, so the switch can route between VLANs and subnets and share a gateway with a second unit. The firmware also covers VLAN, QoS with DSCP, IGMP and MLD snooping, LACP, LLDP, sFlow, RMON, DDMI and Modbus TCP, with RADIUS, TACACS+, 802.1X, ACLs, IP source guard, DHCP snooping, ARP inspection, SNMP v3, HTTPS and SSHv2 securing access. ITU-T G.8032 ERPS handles ring redundancy, with STP, RSTP and MSTP for other layouts.

The series offers two temperature grades. The LMX-2804G-4XS is the standard build, rated -10 °C to 65 °C for heated cabinets and equipment rooms, and the LMX-2804G-4XS-T is the extended temperature build, rated -40 °C to 75 °C for unheated rack enclosures. Both draw 40.5 W from redundant 12 to 48 V DC inputs. Both builds run the same firmware, so one configuration can be saved and restored over USB across a mixed site, and dual image protection keeps a fallback copy of the firmware if an upgrade is interrupted.

The fanless IP30 metal housing mounts in a 19-inch rack, with overload, reverse polarity and high EFT and ESD protection, a 24 V DC, 1 A relay and an RS232 console in RJ45. Antaira lists UL 61010-1, UL Class 1 Division 2, CE and FCC, RoHS compliance and TAA and NDAA compliance for the LMX-2804G-4XS series, quotes an MTBF of 176,591 hours and covers it with a 5-year warranty. Antaira describes the series as designed to withstand harsh and extreme environment conditions, and in practice the fanless DC design suits industrial rack cabinets where a cooling fan or a mains supply is not wanted. We can pre-configure IP addressing, VLANs, routing and ring settings before delivery.