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Metal network switch with four Ethernet ports and two SFP slots

Transition Networks

Transition Networks SISTG1040-242-LRT 4-Port Gigabit network switch

SKU CH-ERX2-A1B58 MPN SISTG1040-242-LRT

A hardened unmanaged Gigabit switch with four copper ports, two SFP uplinks, redundant power and a -40 °C to +75 °C operating range

  • FormatWall Mountable
  • Network Management TypeEthernet Switch
  • Uplink PortsYes
  • Uplink InterfaceSFP
  • Primary Ports4 x Gigabit Ethernet Network 2 x Gigabit Ethernet Expansion
  • Primary Port Speed10/100/1000Base-T 1000Base-X
  • Hardened operation from -40 °C to +75 °C for extreme environments
  • Four Gigabit copper ports deliver high-speed wired connectivity
  • Two dual-speed SFP slots enable flexible fiber uplinks
  • Redundant power inputs maintain uptime during supply failure
  • Wall-mount or DIN-rail mounting suits industrial installations

Hardened Gigabit Switch for Hazardous Sites

This unmanaged Layer 2 switch delivers full Gigabit Ethernet connectivity in environments where standard equipment fails. It provides four copper ports and two dual-speed SFP slots for fiber uplinks. The unit is certified for reliable operation in harsh industrial settings such as factory floors and outdoor enclosures. It targets installers who need dependable networking in hazardous locations.

Wall or DIN-Rail Mount with Redundant Power

The rugged metal housing supports both wall mounting and DIN rail mounting for flexible cabinet integration. Dual redundant power inputs protect against single-source failure and keep the link alive during supply interruptions. SFP uplinks enable fiber daisy-chain topologies that increase network resilience. Copper ports auto-negotiate at 10/100/1000 Mbps for simple plug-and-play deployment.

Replaces Standard Switches in Extreme Temperature

This model replaces commercial-grade switches that cannot survive wide temperature swings. The operating range spans -40 °C to +75 °C, making the upgrade worthwhile when equipment sits in unheated sheds, roadside cabinets or industrial freezers. It is not suited for buyers who require managed features such as VLANs, QoS or remote monitoring. Nor does it fit installations that need Power over Ethernet on the copper ports.

Highlights

  • Hardened operation from -40 °C to +75 °C for extreme environments
  • Four Gigabit copper ports deliver high-speed wired connectivity
  • Two dual-speed SFP slots enable flexible fiber uplinks
  • Redundant power inputs maintain uptime during supply failure
  • Wall-mount or DIN-rail mounting suits industrial installations

Specifications

BrandTransition Networks
FormatWall Mountable
Network Management TypeEthernet Switch
Uplink PortsYes
Uplink InterfaceSFP
Primary Ports4 x Gigabit Ethernet Network 2 x Gigabit Ethernet Expansion Slot
Primary Port Speed10/100/1000Base-T 1000Base-X
Uplink SpeedSFP
StackableWall Mountable DIN Rail Mountable
Layer2
Shipping weight1.06 kg
Package size343 × 281 × 250 mm

Questions about this item

What speeds do the 10/100/1000Base-T and 1000Base-X interfaces support on this switch?

The four copper ports negotiate at 10, 100 or 1000 Mbps, while the two SFP slots operate at 100 or 1000 Mbps depending on the inserted module.

Which mounting options does the SISTG1040-242-LRT provide?

The hardened enclosure includes brackets for wall mounting and a DIN-rail clip for cabinet or rail installation.

How is the redundant power wired, and what mistake should be avoided?

Connect two independent DC sources to the dual terminal block; the unit will not power up if only one feed is live and the other is left floating.

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