Optical Fiber Interface

  • For use with Eclipse HX Digital Matrix systems
  • Interfaces with one or two digital matrix panels
  • Highly secure connections
  • 24-bit digital DEMUX
  • 48kHz audio sampling rate
  • Sends and receives RS-422 control data
  • Flat frequency response up to 20kHz, S/N >80dB
  • Up to 20km (12 miles) range with fiber using single mode
  • Up to 5km (3 miles) using multi-mode fiber
  • Works in demanding environmental conditions
  • RJ45 connectors for direct connection with matrix panels, frames and interfaces
  • Can be used to extend any line level 4-wire audio signal / RS-422 signal
  • Can be used with the earlier FIM-102D but the audio will require 5dB of gain.
  • Can be used with the FIM-1222 Fiber cards
Item Part Number:


The FIM-S222 optical fiber interface allows one or two digital matrix intercom user panels, interface modules or 4-wire sources to be remotely connected to Eclipse, Eclipse HX and Matrix +3 intercom systems over optical fiber. A pair of FIM-S222 interfaces is required for each fiber link; one at the matrix frame and the other at the matrix user panel.

Technical Specifications


Transmission Method: Digital, TDM, 24-bit, 48k samples/sec
Input Impedance: 600 Ohms, balanced
Output Impedance: 30 Ohms, balanced
Maximum Input Level (600 Ohms): +18dBm (peak)
Maximum Output Level (from 30 Ohms): +18dBm into 600 Ohms
Frequency Response (@0dBm from 50Hz to 15kHz): ±0.2 dB
Total Harmonic Distortion + Noise: from 20Hz to 20kHz @ +8dBm, <0.2% at 1kHz @ +18dBm, <0.007%
CMRR (Common Mode Rejection Ratio): ±55db @ 1kHz
Signal to Noise Ratio: unweighted, 20Hz – 20kHz, ref. to +18dBm clip level, >80dB
Aggregate Digital Data Rate: 147.456 MB

Electro-Optical System Margin Data

Operating Wavelength: 1300nm
TX output into cable: -8 to -15dBm
RX sensitivity: ≤31dBm
OP Margin Single Mode: 19dBm
OP Margin Multi Mode: 12dBm

Matrix Data Communications (Frame-to-Panel Digital Data)
Transmission Rate

RS-422, Balanced TTL Levels: 0 to 150 kBits/sec
Jitter: 1.12 msec*
*Higher rates possible dependent upon user system jitter tolerance


Connectors: RJ-45, coaxial
Optical Connectors: ST-type
Power Connector: 2.5mm Circular

Power Supply

Input Voltage Range: 9-18V DC
Power Consumption: @13.8V per end, all channels at full level; <5 watts
A/C Adapter: Supplied


Operating: -40° – +149°F (-40° – +65°C)
Humidity: 0 – 95%, non-condensing


7.1 x 3.3 x 1.1in (WxHxD)
(180.3 x 83.8 x 27.9mm)


0.5lbs (0.23kg)

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