EI Series Mini-Switch
EI Series Mini-Switch Image
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Model: EI Series Mini-Switch
Manufacturer: Contemporary controls
The EIS miniature switch family advances switch technology to a new level for industrial applications
Product Status: Active - Active products are produced on a regular manufacturing schedule and are actively supported products. Active products are not necessarily in stock in the USA. Lead time to ship date for Active products is typically stock to 15 business days ARO.

Stock Status: Call

The EISM miniature switching hub is designed to be used where space is at a premium because of shrinking panels and the space restrictions of small machines.

The EISM5-100T is designated as a 5-port miniature switching hub. One port has an extra socket allowing it to be used as an uplink port to connect two switches together, thereby eliminating the need for a crossover cable. This unit is similar in function and capabilities to its EIS8-100T counterpart. It divides the Ethernet network into as many as five separate collision domains. It terminates the collision domain at each port. It functions as a "bridge" between these various data links Ś creating a larger network diameter than can be achieved with repeating hubs. Each port automatically negotiates with its attached device the data rate (10 or 100 Mbps) and duplex (full- or half-duplex) for that port. The flow control mechanism is also negotiated. For full-duplex segments, the PAUSE scheme is used. For half-duplex segments, the backpressure method is automatically invoked.


  • Plug and Play operation
  • Wide-range, low-voltage AC or DC powered
  • Miniature Size
  • Provision for redundant power connections
  • 10BASE-T/100BASE-TX compliant
  • LEDs for activity/link/data rate and power
  • Shielded RJ-45 connectors
  • Easy DIN-rail installation
  • Auto-negotiated data rate, duplex and flow control
  • Industrial environment EMC
  • Full- or half-duplex
  • CE Mark
  • Broadcast storm control
  • UL 508 and UL 1604 Class I, Division 2 Listed
  • Built-in uplink provisions
Contemporary controls EISM5-100T
Five-port 10BASE-T/100BASE-TX miniature switching hub
Contemporary controls AI-XFMR-E
Wall-mount transformer 220VAC (nom)
Contemporary controls AI-XFMR
Wall-mount transformer (120VAC (nom)