Unmanaged Hardened Gigabit Ethernet Switch
(8) 10/100/1000Base-T Ports + (2) 100/1000Base-X SFP Slots

  • SISTG1040-282-LRT-768x768
  • SISTG1040-282-LRT-front
  • SISTG1040-282-LRT-back

This switch is an unmanaged full Gigabit Ethernet hardened switch that has (8) 10/100/1000Base-T ports with (2) 100/1000 dual speed SFP slots. The SISTG1040-282-LRT can be used at the edge of a hardened network to provide Gigabit Ethernet connections in hazardous locations. The two fiber uplink ports can also be used in a daisy chain for maximum network reliability. It has redundant input power connections to ensure safe reliable operation in temperatures between -40°C and +75°C. Lantronix ’ hardened switches are certified to operate reliably in harsh environments such as those found on factory floors, outdoor enclosures or other hazardous environments.


SISTG1040-282-LRT Overview


  • Support Jumbo Frame up to 9K bytes
  • Layer 2 wire-speed switching engine
  • Ruggedized metal closure
  • IEEE 802.3az Energy Efficient Ethernet
  • Fan-less design
  • Wide operating temperature range (-40°C to +75°C)
  • Dual Power input
  • Din Rail and Wall Mount options

SISTG1040-282-LRT Tech Specs


    • IEEE 802.3
    • IEEE 802.3u
    • IEEE 802.3z
    • IEEE 802.3ae
    • IEEE 802.3x
    • IEEE 802.1p
    • IEEE 802.3az


    • CSMA/CD


    • Store-and-forward switching architecture

    Switching Capacity

    • 20 Gbps


    • (8) 10/100/1000Base-T RJ-45 ports
    • (2) 100/1000Base-X SFP slots

    MAC Address

    • 4K MAC address table

    Status LEDs

    • System, Power1, Power2, Port Status


    • Width: 1.7” [44 mm]
    • Depth: 5.1″ [130 mm]
    • Height: 5.3” [135 mm]

    Reset button

    • Reset the switch

    Power Input

    • +12 to +48VDC or -12 to -48VDC; Redundant input; reverse power protection

    Power Consumption

    • 5.8 Watts

    Ingress Protection

    • IP30


    • Operating: -40°C to +75°C
    • Humidity: 5% to 95% (non-condensing)


    • 0.86 lbs. [0.39 kg]


    • UL Class 1 / Div 2; EMI: CE, FCC Part 15;
    • Safety: IEC62368-1/EN62368-1


    • 5 Years

SISTG1040-282-LRT Resources

Application Spotlights
Press Releases
Case Studies

SISTG1040-282-LRT Downloads

Note: Some Documentation may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in August 2021. Learn more about the acquisition here.

SISTG1040-282-LRT Part Numbers

SISTG1040-282-LRT SISTG1040-282-LRT

(8) 10/100/1000Base-T port [100 m/328 ft.] + (2) 100/1000Base-X SFP slot (Din Rail Bracket included)

Lantronix Part # Name Description Order Now

Compatible Accessories

Lantronix Part # Legacy Part # Name Description Order Now
SFP Modules SFP Modules See Relevant SFP Modules
OCA-P181610 OCA-P181610 Outdoor Cabinet Assembly 18 x 16 x 10” Polycarbonate Enclosure for Outdoor Switches
DRBH-01 DRBH-01 Din Rail Bracket for Hardened Switches
WMBH-01 WMBH-01 Wall Mount Bracket for SISPM1040-384-LRT-C, SISPM1040-362-LRT, SISPM1040-582-LRT
25135 25135 Industrial DIN Rail Mounted Power Supply
25130 25130 Industrial DIN Rail Mounted Power Supply