Modules and Boards

Yeastar S2 2-FXS Extension Module

  • New: $135.00
Availability: In Stock

Yeastar S2 2-FXS Extension Module (YST-S2)

The Yeastar S2 Module is used to customize the connectivity of a compatible Yeastar MyPBX or S-Series phone system. Specifically, this module gives two ports FXS connectivity for the addition of two analog telephones.

This module fits into one of the on-board module slots for the S412, S20, and S50. It requires an expansion board to fit into the S100 or S300 units.


  • Gives FXS connectivity to 2 ports on compatible Yeastar IP-PBX unit
  • Allows for addition of 2 analog telephones


  • Yeastar S-Series (S20, S50, S100, S300, S412)
  • Yeastar MyPBX SOHO
  • Yeastar MyPBX Standard
  • Yeastar MyPBX U100
  • Yeastar MyPBX U200
  • Yeastar MyPBX U500 Series

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