4 Wire Data with E&M Extend Analog Data Circuits with E&M Signaling Over Fiber 8806-1248-02

The 4 wire data E&M system provides simultaneous transmission of 4-wire data and single or bidirectional E&M over two optical fibers, providing point-to-point isolation of Telco or 4-wire PABX trunk lines using E&M leads.

The 4-wire data supports full duplex constant transmission up to 9600 bps in voice frequency range (300Hz-3.4KHz). 2-wire data is half duplex, and 4-wire data is full duplex. The E&M card interfaces with an E&M input and provides a contact closure on the far end. The cards have convenient E&M input and output status LED indicators.

This fiber link card is designed to be installed into any of the RLH Fiber Link Card Housings, and occupies a single card slot.

• 4 Wire data with E&M function
• Full duplex, constant transmission
• Dual power capable, line or 24-56VDC
• Available in Single or Multimode
• Available with ST or SC Connectors
• Compatible with a wide variety of Card Housings
• Limited Lifetime Warranty
• Made in USA  

  Transmission Method:
  Frequency modulated light via two optical fibers

  Wavelength:
  Multimode: 850nm
  Singlemode: 1310nm

  Fiber Type/Distance:
  Multimode (62.5/125µm): 1.2 miles/2km
  Singlemode (9/125µm): 9 miles/15km; Long Haul 31 miles/50km

  Fiber Connector Type:
  ST or SC

  Dimensions:
  7in. x 4in. x 1in. (177.8mm x 101.6mm x 25.4mm)
  (Standard RLH Fiber Link Card Form Factor)

  Operating Temperature:
  -40˚F to +158˚F (-40˚C to +70˚C)

  Operating Humidity:
  95% non-condensing