10/100TX 4TX/1FX Ethernet Self-Managed Switch

CNFE4+1SMS Series

Example of 10/100TX 4TX/1FX Ethernet Self-Managed Switch

Availability: NA Only

PDF Datasheet: en  fr  




-40 º to +75 ºC


4TX + 1FX


Made in the USA



The ComNet CNFE4+1SMS(M,S)2 is a five-port self-managed Ethernet switch with uplink management functionality. It provides 4 ports operating at 10/100Mbs and is designed to combine Ethernet data from the four electrical ports into a single optical port and forward that data to the next network device, using two-fiber ST or SC optical connectors. There is no programming required to use this switch. The ComNet CNFE4+1SMS comes pre-programmed, preventing network video flooding with a switch selection that allows the fiber port to be used as an uplink or as an unmanaged switch. It is “Plug-and-Play” easy to use. LED indicators confirm the operating status of this device. The ComNet CNFE4+1SMS may be either wall mounted, rack mounted (“ComFit” packaging) or DIN –rail mounted with the use of the ComNet DINBKT1 adapter.

Features for CNFE4+1SMS Series

  • No Programming Required
  • Optical port supports 100 Mbps full duplex data
  • Pre-programmed Port for uplink to other Ethernet devices
  • Status indicating LEDs provide rapid indication of critical operating parameters.
  • IEEE 802.3 compliant
  • Plug-and-play design ensures ease of installation and no electrical or optical adjustments are ever required.
  • Voltage transient protection on all power and signal input/output lines provides protection from power surges and other voltage transient events.
  • ComFit standard form factor is interchangeable between stand-alone or rack mount use.
  • Designed to meet full compliance with the environmental requirements (ambient operating temperature, mechanical shock, vibration, humidity with condensation, high-line/low-line voltage conditions, and transient voltage protection) of NEMA TS-1/TS-2 and the Caltrans Specification for Traffic Signal Control Equipment.
  • Electric Port Supports Auto-negotiation for Full Duplex or Half Duplex Data Throughput
  • Standard ComFit models are hot-swappable.


  • IP Video
  • 10/100 Mbps Ethernet
  • High Speed Computer Links

CNFE4+1SMS Series Application Diagram(s) (1)

Application Diagram(s) for CNFE4+1SMS Series

CNFE4+1SMS Series Ordering Information

Part NumberDescription
CNFE4+1SMSM25 Port 10/100 Mbps Ethernet Self-managed Switch 1FX, 4TX, 2 Fiber, Multimode 62.5/125μm, 16 dB, up to 3 km (2 mi). Lifetime Warranty.
CNFE4+1SMSS25 Port 10/100 Mbps Ethernet Self-managed Switch 1FX, 4TX, 2 Fiber, Single Mode 9/125μm, 16 dB, up to 48 km (30 mi). Lifetime Warranty.