
Network Switches
Lantronix SISGM1040-284-LRT Hardened Managed Gigabit Ethernet Switch
The SISGM1040-284-LRT is a fanless, non-PoE hardened managed switch with eight Gigabit copper ports and four SFP slots, for connecting cameras, controllers and field devices in cabinets running on 12 to 48 VDC power.
From $666.01
Overview
About the Lantronix SISGM1040-284-LRT
The SISGM1040-284-LRT (also written SISGM1040-284 or SISGM1040284LRT) is the data-only member of Lantronix's hardened DIN-rail switch line. Without a PoE stage it runs on a wide 12 to 48 VDC dual input and draws no more than 11 W, which suits cabinets and enclosures that already have 12 V or 24 V supplies. Eight 10/100/1000 RJ-45 ports and four 100/1000 SFP slots connect local devices and fiber uplinks or rings on 24 Gbps store-and-forward switching.
The fanless IP30 unit operates from -40 to +75 C and lists FCC Class A, CE, UL, IEC/EN 62368-1 and NEMA TS-2 certifications, with an MTBF of 193,332 hours. Redundancy options include Rapid Ring, G.8032 ERPS, G.8031 linear protection, MRP, RSTP and MSTP. Security covers RADIUS, TACACS+, 802.1X, L2/L3/L4 ACLs, DHCP snooping and IP Source Guard, with IEEE 1588 v2 PTP, IGMP and MLD snooping, 4K VLANs and static routing.
The switch is integrated with the Lantronix Percepxion cloud platform for device life cycle management, enterprise application integration and analytics. Its embedded DMS manager, reachable through Percepxion or the local web GUI, provides topology, floor map, device map and traffic monitoring views of every IP device, plus network diagnostics for troubleshooting.
Key capabilities
- Wide 12-48 VDC input
- Dual terminal-block inputs accept 12 to 48 VDC, so the switch can share an existing 12 V, 24 V or 48 V cabinet supply.
- Low 11 W draw
- Maximum power consumption is 11 W, which keeps heat and supply sizing modest in sealed outdoor and industrial enclosures.
- Four SFP uplinks
- Four 100/1000 SFP slots alongside eight Gigabit copper ports support fiber rings plus uplinks without giving up local device ports.
- Fanless -40 to +75 C
- A fanless IP30 housing 62 mm wide runs from -40 to +75 C and carries NEMA TS-2 certification for traffic cabinet use.
- Percepxion and DMS management
- Cloud management through Percepxion and the embedded DMS give topology, floor and map views of connected IP devices with network diagnostics.
- 193,332-hour MTBF
- Lantronix rates the SISGM1040-284-LRT at an MTBF of 193,332 hours, a useful figure when planning maintenance for unattended field cabinets.
How to choose the right SISGM1040-284-LRT part number
SISGM1040-284-LRT is one switch model with a DIN-rail bracket included; the choices are power and mounting. Because the input range is 12 to 48 VDC and draw is 11 W, small supplies work: SPS-UA12DHT gives 12 VDC at 18 W from AC, the 25130 DIN-rail supply gives 48 VDC at 39.8 W, and PS-DC-DUAL-5624T offers a 24 VDC output alongside 56 VDC. WMBH-01 provides wall mounting, OCA-P181610 is a vented outdoor cabinet with DIN rails and wire glands, and EDCA-DIO-01 adds a door contact alarm.
Configure & order
Find your SISGM1040-284-LRT part number
Every orderable SISGM1040-284-LRT configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.
Complete the deployment
Accessories, renewals & add-ons
Everything sold for the SISGM1040-284-LRT, organized by what it does — power, mounting & enclosures— each with why you'd add it.
Power
4 items
25165
25165
Industrial DIN rail mounted power supply with 12 V DC, 2 A output. It accepts 120 V AC or 230 V AC input and provides up to 24 W output power.
$43.74
Ships on backorder

25130
25130
Industrial DIN Rail Mounted Power Supply with 48VDC output and a 39.8 Watts power rating.
$62.35
Ships on backorder
PS-DC-DUAL-5624T
PS-DC-DUAL-5624T
Stand-alone hardened 345 Watt power supply with 56VDC and 24VDC dual output. It supports a compact Stand-Alone or DIN Rail form factor.
$578.83
Ships on backorder

SPS-UA12DHT
SPS-UA12DHT
AC power adapter with 90~264VAC input and 12VDC, 1.3A, 18 Watts output. It is listed with short circuit, overload, over voltage and overheating protection.
Mounting & enclosures
4 items
DRBH-01
DRBH-01
DIN rail bracket kit for hardened switches. It is listed for SISPM, SISGM and SISTx products, with compatible products identified by Lantronix for multiple SISPM1040, SISGM1040,…
$7.42
1 in stock

WMBH-01
WMBH-01
Wall mount bracket for SISPM1040-384-LRT-C, SISPM1040-362-LRT, and SISPM1040-582-LRT switches.
$22.31
13 in stock

EDCA-DIO-01
EDCA-DIO-01
EDCA-DIO-01 Enclosure Door Contact Alarm mounts within a telecom equipment cabinet to help alert network managers when the cabinet door has been opened.
$92.62
Ships on backorder

OCA-P181610
OCA-P181610
18 x 16 x 10” polycarbonate outdoor cabinet assembly for Lantronix outdoor switches.
$646.92
Ships on backorder
Compatibility taken from the Lantronix part-number tables for the SISGM1040-284-LRT. Don't see what you need? Request a quote — we can source the full Lantronix catalog.
Where the SISGM1040-284-LRT is used
- Fiber-ringed traffic cabinet networks at intersections
- Connecting externally powered IP cameras and controllers outdoors
- Factory-floor Ethernet in 24 VDC control panels
- Utility and substation networks needing PTP time sync
SISGM1040-284-LRT datasheets & documentation
SISGM1040-284-LRT FAQ
Does the SISGM1040-284-LRT support PoE?
No. The SISGM1040-284-LRT is a data-only switch with eight 10/100/1000 RJ-45 ports and four 100/1000 SFP slots, and it does not supply power to connected devices. Cameras or radios on its ports need their own power or a separate PoE source.
What power input does the SISGM1040-284-LRT accept?
It accepts 12 to 48 VDC on dual terminal-block inputs and consumes 11 W maximum. Compatible supplies listed include the SPS-UA12DHT (12 VDC, 18 W), the 25130 DIN-rail supply (48 VDC, 39.8 W) and the 25165 DIN-rail supply.
What is the operating temperature of the SISGM1040-284-LRT?
The switch operates from -40 C to +75 C with DC input in a fanless IP30 housing. It is also designed to meet IEC 61850-3, IEEE 1613 and UL C1/D2; Lantronix asks buyers with certification needs to contact them.
Can the SISGM1040-284-LRT be managed from the cloud?
Yes. It comes integrated with the Lantronix Percepxion cloud platform for device life cycle management and analytics. Locally, it is managed through the DMS web manager, SNMP v1/v2c/v3, SSH or CLI, with firmware updates over TFTP or HTTP/HTTPS.




