Managed Hardened Fast Ethernet Switch
(16) 10/100Base-TX Ports + (2) 10/100/1000Base-X SFP/RJ-45 Combo Ports

The SISTM1040-262D-LRT-B switch is a (16) port managed hardened switch with (2) copper ports or (2) dual speed SFP slots supporting Fast Ethernet to Gigabit Ethernet speeds. The (2) SFP slots provide the ultimate flexibility by allowing SFP fiber connections at different speeds and at a variety of communication distances. The ports can also be used in a redundant ring for maximum network reliability.

NDAA Compliant

SISTM1040-262D-LRT-B Overview


  • Auto-Negotiation
  • Auto-MDI/MDIX
  • Combo SFP ports support 100/1000Base-X SFPs
  • Extended Operating Temperature (-40°C to +70°C)
  • Dry Contact Relay Alarm Output
  • Dual, Redundant, Auto-Sensing 12-48 VDC Power Inputs
  • Overload Current Protection
  • DIN Rail Mounting and Wall Mount Brackets Included
  • PTP- Precision Timing Protocol
  • RMON
  • Port Based VLAN (4096)
  • IEEE 802.1Q Tag VLAN
  • GVRP
  • Port Trunk with LACP QoS (Quality of Service)
  • IEEE 802.1p Class of Service, Per port provides priority queues
  • Port Based, Tag Based and Type of Service Priority
  • Port Security: MAC address entries/filter
    • IP Security: IP address security management to prevent unauthorized intruder
    • Login Security: IEEE 802.1X/RADIUS Authentication IGMP Query mode for Multi-Media Application
    • IGMP Multicast groups 1024
    • Support 0-ring and multi-ring, STP, RSTP, MSTP
    • Provide redundant backup feature and recovery time below 20ms.
  • SNMP v1 v2c, v3/Web/Telnet/CLI
  • DHCP Client/DHCP Server
  • TFTP Firmware Upgrade
  • TFTP Configuration Backup/Restore
  • IPv4/IPv6 dual-stac

Case Studies

This Lantronix partnership provides networking hardware and configuration services to Park Assist, a global technology firm that develops intelligent camera-based parking guidance systems.

SISTM1040-262D-LRT-B Tech Specs


  • IEEE 802.3
  • IEEE 802.3ab
  • IEEE 802.3u
  • IEEE 802.1X
  • IEEE 802.3ad
  • IEEE 802.1d
  • IEEE 802.1p
  • IEEE 802.1Q
  • IEEE 802.3z
  • IEEE 802.3x
  • IEEE 802.1W
  • IEEE 802.1S
  • IEEE 802.1AB

Status LEDs

  • PWR 1 (Power): ON = primary power connected
  • PWR 2 (Power): ON = backup power connected
  • FAULT: ON = power input failure on PWR1 or PWR2
  • LNK/ACT: ON = Link; FLASHING = data transmitting
  • FDX/COL: ON = Full-duplex mode;
  • FLASHING = collisions occurring
  • RM: Ring Master


  • Width: 3.8” [96.4 mm]
  • Depth: 4.27” [108.5 mm]
  • Height: 6.06” [154 mm]

Power Consumption

  • 12 Watts

Power Input

  • 12 to 48 VDC; redundant inputs with over current protection

Ingress Protection

  • IP30


  • Operating: -40°C to +70°C
  • Storage: -40°C to +85°C
  • Humidity: 5% to 95% (non-condensing)
  • Altitude: 0 – 10,000 ft.


  • 3.85 lbs. [1.75 kg]


  • Safety: UL EN60950-1, Class 1/Div 2, Groups A, B, C, D, ATEX, FCC Class A, CE Mark, CE EN61000-4-2, CE EN61000-4-3, CE EN-61000-4-4, CE EN61000-4-5, CE EN61000-4-6, CE EN61000-4-8, CE EN61000-6-11
  • Environmental: IEC60068-2-32 (Free fall), IEC60068-2-27 (Shock), IEC60068-2-6 (Vibration)


  • Lifetime

SISTM1040-262D-LRT-B Downloads

Additional Product Information

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.

Firmware Downloads

Keep your products up to date by downloading the latest firmware. You must log in or create a MyLantronix account to download firmware. 

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(16) 10/100Base-TX (RJ-45) ports [100 m/328 ft.] + (2) 10/100/1000Base-T (RJ-45) or (2) 100/1000Base-X SFP combo ports

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Input: 90 ~ 264 VAC Output: 12 VDC, 1.3A, 18 Watts

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Outdoor cabinet with vent, (2) DIN rails, (2) ground terminal blocks and (1) each low voltage DC positive and negative and AC mains line and neutral/line terminal block, plus (1) power and (10) data wire glands

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Industrial DIN Rail Mounted Power Supply

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