Ethernet Military Switch RJSML-MG7F3G

With industrial EMI compliancy

Key features
  • Managed military Ethernet switch
  • 7 fast ports + 3 Gigabit ports
  • Data acquisition & transmission
  • Battlefield communication c4IsR
  • Rugged networks
  • Combat vehicles
  • Avionic & shipboard system
Technical information

User manual : 

Our Rugged Ethernet switches withstand extreme operating conditions of battlefield, marine and aerial environments


Catalog Rugged Ethernet Switch & Media Converters

Last update : Mon, 01/31/2022 - 10:04

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User Manual RJSML-MG7F3G Management

Last update : Thu, 12/05/2019 - 12:17

User Manual RJSML-MG7F3G Hardware

Last update : Wed, 05/09/2018 - 17:38

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The fault tolerance provided by Ring switches is not possible with conventional Ethernet hubs or unmanaged switches. 
The RSTP (Rapid Spanning Tree Protocol) algorithm in Managed Switches can be used to create rings. However, Spanning Trees were designed for the office environment and do not guarantee deterministic performance. Ring switches, on the other hand, are deterministic by design and use their knowledge of the well-known alternative paths to ensure real-time recovery of network failures. Ring switches are also simpler to install, with no configuration necessary in most situations. 

Ring Advantages Over Spanning Trees and Other Schemes 

  • Deterministic performance – 5 mS per hop 
  • No IP address or complex set up required 
  • Expandable to 50+ nodes (RSTP limited to 6 hops max.) 
  • Can increase reliability by establishing multiple rings 
  • No ring master is required – no one switch is critical 
  • Ring switches are ultra stable 
  • Ring switches cost less than Managed Switches

The Ring models are “half-managed”. They combines the plug-and-play simplicity of an unmanaged switch with some high performance features of managed switches. Ring Switch can be pre-configured to just run. But it is also possible to fine tune the performance of the ring by using a simple Windows wizard. 

Other advanced capabilities include: 

  • priority queuing for prioritizing your traffic 
  • message rate filtering for broadcast storm protection 
  • port mirroring for diagnostics. 

A Ring switch bases its switching process on MAC address instead of IP address. 
Thus, the Ring switch is a layer 2 device.

SNMP (Simple Network Management Protocol) and RMON (Remote Monitoring) provide a means to monitor and manage your network. Each SNMP device maintains Management Information Bases (MIBs) containing information about the operation and configuration of the device. 

Each MIB contains a variety of information such as: 

  • Information about the switch as a system: name, description, physical location; 
  • VLAN 
  • IGMP 
  • statistics 
  • and much more

The mirroring feature is ideal for performing diagnostics by allowing traffic that is being sent to and received from one or more source ports to be replicated out a monitoring/target port. 
Port mirroring is available both with managed switches and Ring switches. 
Data is monitoring with a network monitor software.

IGMP (Internet Group Management Protocol) allows hosts and routers to work together to optimize forwarding of multicast traffic on a network. 
Without IGMP, all multicast packets must be forwarded to all network segments. 
With IGMP, multicast traffic is only forwarded to network segments, which connect interested hosts. 

An IGMP snooping switch performs many of the functions of an IGMP router. 
Periodically, routers and IGMP snooping switches in active mode send an IGMP Query on each attached network. (The query interval is generally around 1-2 minutes.)


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