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Blonder-Tongue FOCN-S4S-201
Fiber Optic Compact Node

OUR PART #:  FOCN-S4S-201

The Blonder-Tongue FOCN-S4S-201 is a low-cost, compact 2-way node designed to deliver the full array of CATV services presently available and those planned for the future.
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Our Price: $1,073.84
List Price: $1,083.00
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The Blonder-Tongue FOCN-S4S-201 is a low-cost, compact 2-way node designed to deliver the full array of CATV services presently available and those planned for the future. These services include video (analog and digital), high speed data and telephony. The FOCN has applications for the direct fiber transmission of CATV RF signals in MDU, industrial, government and educational facilities, or wherever a high performance compact indoor node is required. The unit is constructed with high quality components enabling it to meet or exceed its performance specifications in an uncontrolled indoor environment with wide temperature variations.

Blonder-Tongue FOCN-S4S-201 Features:

  • Compact Size
  • 1000 MHz Forward Bandwidth, 5-42 MHz Return Bandwidth (on 2-way models)
  • Tri-color LED for Optical Input Status
  • LED Indicator for Return Laser Status
  • 12 VDC Powering Versatility

Blonder-Tongue FOCN-S4S-201 Specifications:

  • Forward Optical Receivers:
    • RF Output:
      • Frequency Range (+/- 1.0 dB): 54-1000 MHz (NTSC)   
      • Output Level (@ -1 dBm optical input):* +28 dBmV (@ 550 MHz)   
      • Return Loss: 14 dB min., 16 dB typical   
    • Impedance: 75 Ohm   
    • CNR (@ 0 dBm optical input):* > 53 dB   
    • CSO (@ -1 dBm optical input):* > 63 dBc   
    • CTB (@ -1 dBm optical input):* > 65 dBc   
    • Slope: 0dB   
    • RF Test Point (forward) -20 dB; Type F   
    • Optical:  
      • Wavelength: 1280 - 1610 nm   
      • Optical Input Power Range: +2 dBm to -8 dBm   
      • Return Loss: > 50 dB with APC connector   
      • Optical Input Power Test Point: 1 V/mW +/- 0.1 V   
      • Optical Connector: SC/APC, 8° APC 

*NOTE: Typical levels @ 0 dB slope to 1000 MHz with 8dBm optical transmitter with OMI @ 3.2%, & 77 NTSC channel loading to 550 MHz & digital loading to 1000 MHz (-6 dB below analog).  

    • Electrical & Mechanical:
      • Dimensions: 3” H x 6” D x 2.1” H   
      • Weight: 12 oz.   
      • Operating Temperature Range: -10 to +55°C (temperature at the mounting plate)   
      • Enclosure IP Rating: IP20
      • Powering: +12 VDC (via external Power Supply (included))   
      • DC Ripple: < 50 mV   
      • Power Dissipation (with return TX): < 7 W  
  • Return Optical Transmitters:
    • DFB Versions RF Input:
      • Frequency Range: (+/- 1.0 dB) 5-42 MHz (NTSC)   
      • RF Test Point (return): -20 dB (external); Type F   
      • Return Loss (with Return TX Installed): > 16 dB within the Return Band   
      • Return Path NPR: 15 dB min. of NPR Range   
      • FP: 37 dB NPR Threshold   
      • DFB: 41 dB NPR Threshold   
    • Optical: 
      • Optical Output:
        • DFB = 4.8dBm (3mW) @1310nm
        • DFB = 4.0dBm (2.5mW) @1550nm
        • Return Loss: > 50 dB with APC connector
        • Optical Connector SC/APC, 8° APC

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