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APN-91 (NEC EHS Cable) Product Information

Electronic Hook Switch (EHS) cables provide communication between your phone and Plantronics headset, enabling you to answer and end your calls using your headset call control button.

Installation Information

  • Click here to view the installation instructions for the APN-91.

Compatibility Information

EHS cables are designed to work with specific phone models and Plantronics products. The table below provides the compatibility information for the APN-91.

EHS CablePhone Make and ModelCompatible Plantronics Product
Part No. 89280-11
  • DT 330
  • DT 730
  • DT 750
CS500 Series:
  • CS510
  • CS520
  • CS530
  • CS540
Savi 700 Series:
  • W710
  • W720
  • W730
  • W740
  • W745

Voyager Legend CS

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