Powerful, open and flexible COTS L2/L3 managed Switch with edge-computing capabilities.

The NVS-MIL2004HSR is a COTS general purpose 20+5 port managed Gigabit Ethernet L2/L3 Switch that is packaged in a reliable, lightweight and compact MIL-STD-810G certified enclosure. A military compliant dual redundant power supply is fitted in full equipped versions to cover all applications and accept American & European standard AC/DC voltages for immediate worldwide operation.
Latest generation conduction-cooled electronics have been custom designed to fit enclosure mechanics and withstand harsh environments. The Router-Switch is fitted with a complete set of active auxiliary electronics and supervisory systems that are indispensable for next generation programs and provide increased payload safety, greater system control and easy integration.

Main Features

  • 20x GbE ports
  • 4x 1000Base-SX Fiber optic ports
  • General purpose service Ethernet port
  • Latest generation ARM Cortex hardware
  • High-availability Seamless Redundancy (HSR)
  • Parallel Redundancy Protocol (PRP)
  • Precision Time Protocol (PTP)
  • Multilayer management, security & monitoring
  • Auxiliary RS232 console port


  • Edge computing capabilities for user defined applications
  • General purpose, PPS and IRIGb Input and Output available on auxiliary connector
  • Sealed military enclosure cold plate cooled
  • Dual redundant MIL-STD-704 AC/DC power supply
  • System operation front panel LED indicators
  • Optimized heat dissipation chassis design
  • Real Time High/Low temperature monitoring
  • Remote reset, battleshort & standby system control
  • Dual oversized in-line EMI/EMC power Input filters
  • Tested and certified by independent official laboratories per MIL-STD-810G & MIL-STD-461G

Temperature Supervisor Unit

A Temperature Supervisory Unit (TSU) is fitted in the NVS-MIL2004HSR ‘PLUS’ version. This device protects Router-Switch electronics against extreme climatic conditions, switching the power supplies OFF (standby) when the internal temperature is under or over the established limits. Users may set HI & LO temperature trip-points to regulate and optimize the system safety operational temperature range.
Heating elements are also fitted for mitigating against cold startups. An ‘early warning’ signal advises the digital electronics prior to shutdown-to-standby, allowing critical data to be orderly stored and saved. Router-Switch power is restored once internal temperatures are within operational limits. All functions can be user enabled or disabled by soldered bridges.

Military PSU Input Options

The NVS-MIL2004HSR Router-Switch power supply unit is extremely versatile in order to cover the full range of system applications regardless of the available end platform primary (main) and secondary power voltage.
The three integrated high performance PSU blocks incorporate a range of features that are only available in latest generation advanced military systems.
When Router-Switch reliability is mission critical and faults are not tolerated, the ‘PLUS’ dual redundant PSU version ensures low stress load sharing for the twin DC/DC converters and mitigates the risk of an output power failure.
A wide variety of single or redundant AC/DC power input combinations are supported as standard to guarantee flawless operation in worst case scenarios.

The NVS-MIL2004HSR Router-Switch is mounted as standard via six M4 bottom cover threads that provide secure attachment to the application vehicle base plate. Other mounting options are available upon request. These include side or rear panel fixings, protruding bottom cover legs, front NAS-622 hooks and self-clinching pilot pins, or other.

The enclosure has a self dissipation capacity up to 50W and is not dependent upon cold plate mounting. Cold plate installation is recommended to significantly improve thermal performance and decrease payload Delta-T by approximately 12-15ºC. This will double the MTBF of the enclosed electronics.