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    HOME>Products>EMC General Test Equipments> CDN for Communication Cable in Transient Immunity Test >Coupling/Decoupling Networks for Surge Testing on Unshielded Unsymmetrical Communication Lines CDN 21AF8
      Coupling/Decoupling Networks for Surge Testing on Unshielded Unsymmetrical Communication Lines CDN 21AF8
      Model:CDN 21AF8

      Profile

      The CDN 21AF8 is designed to couple surge pulses onto 8 lines (4 pairs) unshielded unsymmetrical communication lines for voltage
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      The CDN 21AF8 is designed to couple surge pulses onto 8 lines (4 pairs) unshielded unsymmetrical communication lines for voltage up to 6 kV and maximum transmission rate up to 10 MBit/s. It fully meets the requirement of ITU-T K.21 -2011, GB/T17626.5 and YD/T 993.

      Features:
      > Maximum peak voltage is 6 kV;
      > Maximum transmission rate up to 10 MBit/s;

      Test Connection Schematic Illustration


      Design Schematic Circuit



      • GB/T 17626.5
      • ITU-T K.21
      • YD-T 993

      Technical Parameters

      Standard

      IEC/EN 61000-4-5/ ITU-T K.21 -2011

      Coupling Waveform

      1.2/50 μs8/20 μs              

      Output Impedance

      SZR40 (40 Ω±5%) (Standard equipped)

      Coupling Waveform

      10/700 μs5/320 μs

      Output Impedance

      SZR0 (0 Ω) (Standard) (The source impedance of generator is 40 Ω)

      Impulse Voltage

      6 kV (10 kV on request) 

      Coupling Mode  

      8 lines (4 pairs) unshielded unsymmetrical L-PE, L-L

      Coupling Component

      SCD90 (90 V Air Discharge Tube) built-in standard

      Communication

      Port

      Female RJ45 Connector, connect with telecom cables

      Data Rate

      Up to 10 MBit/s

      Operating Voltage

      Max. 90 V DC

      Operating Current

      Max. 1 A

      Decoupling Inductance

      20 mH

      Residual Voltage

      90 VCoupling surge voltage

      General Parameters

      Weight

      Approx. 10 kg

      Dimension

      360 mm(L) x 220 mm(W)x135

      mm(H)

      Enclosure Material

      Aluminum

      Ambient Temperature

      15°C-35°C

      Relative Humidity

      45% - 75% 

      Package Case

      Carton


      Accessories

      Test cables

      redblackdouble-end sheath

      Yellowish greenwith sheathing

      clamp at one end and sheath at

      the other end

      Ethernet cable

      1 m (with Ethernet cable at one end and 8-line at the other end)

      1 mCable 4 and Cable 6 are jumper at equipment end

      Resistance

      Module

      SZR0, SZR40


      Tel: +86 (0)512 6807 7192

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