The Parvus® DuraNET® 30-2020 ultra-rugged 19-port Cisco IOS-managed Layer 2+ network switch subsystem integrates Cisco’s ESS 2020 Embedded Services Switch technology with an isolated MIL-STD-1275/704 power supply in an IP67 (dust/water proof) sealed aluminum chassis with MIL-DTL-38999 connectors. Designed for Size, Weight and Power (SWaP) sensitive harsh military and civil environments (i.e. aircraft, vehicle, mining, industrial), the unit provides reliable local area network (LAN) switching capabilities with the ease of use, secure access, and manageability expected from Cisco-based technology. Two levels of Cisco IOS software (LAN Lite or LAN Base) are available to support access layer connectivity and needs for data, security, voice, and video traffic at the network edge for stationary or mobile network nodes. An ideal solution for IP networking technology refresh and situational awareness applications, the DuraNET 30-2020 enables IPv4 and IPv6 devices (computers, cameras, sensors, routers, etc.) to be networked across extended operating temperature ranges (-40 to +71C) and extreme shock/vibration conditions. The unit is designed to meet (and will be qualification tested) to extreme MIL-STD-461F, DO-160G, and MIL-STD-810G thermal, shock, vibe, humidity, ingress, and EMI/EMC conditions. To enhance reliability, the unit features no moving parts, a near cable-less internal design, industrial temperature grade components, EMI filtering, and power protections for the voltage surges, spikes and transients of aircraft/vehicles. Backwards compatible with the functionality and connector pinout of the DuraNET 2955, the DuraNET 30-2020 provides an enhanced migration path for legacy deployed Cisco Catalyst 2955T-based switch subsystems. Physical dimensions and weight are reduced, Ethernet port density is greater (2x GigE uplinks + 17x 10/100) and EMI/dust/water ingress and input power protections are improved. The DuraNET 30-2020’s modular chassis also enables related configurations that combine the Cisco ESS 2020 switch together with a Cisco 5915 IOS router (see the DuraMAR 5915 “2X” Series”), as well as a multi-function networking and computing appliance, combining Cisco router, switch, and x86 Core i7-based mission computer into a single Line Replaceable Unit (See the DuraWORX 10-10).

  • Ruggedized Cisco ESS 2020 PC104 Managed Switch
  • 19 Ports (2x GigE Uplinks, 17x Fast Ethernet)
  • Cisco IOS Layer 2+ LAN-Base/LAN-Lite Software
  • Size, Weight & Power Optimized Subsystem: 3” Height, < 5 lbs Weight, < 25 W Power
  • Designed to MIL-810G, 461F, 1275D/704F, DO-160
  • IP67 Protection, MIL-DTL-38999 Connectors
  • Vehicle and Aircraft Compatible Power Supply (per MIL-STD-704F & MIL-STD-1275D)

Curtiss-Wright Defense Solutions is an industry-leading supplier of sophisticated electronics products recognized around the world as one of the most innovative designers and manufacturers of highly engineered systems built to perform reliably in harsh conditions. We continue to lead the way in developing and marketing advanced solutions that address the rapidly evolving requirements of naval, aerospace and ground defense customers. Curtiss-Wright proudly maintains its long, historic tradition of innovation. Learn more at

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