Yeastar O2 2-FXO Extension Module

Yeastar O2 2-FXO Extension Module

  • New: $110.00
Availability: In Stock
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Yeastar O2 2-FXO Extension Module (YST-O2)

The Yeastar O2 Module is used to customize the connectivity of a compatible Yeastar MyPBX or S-Series phone system. Specifically, this module allows for FXO connectivity on two ports for the for the connection of 2 analog PSTN (POTS) lines.

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 FXO connectivity to 2 ports on compatible Yeastar IP-PBX unit
  • Allows for connecting VoIP system to POTS (analog) telephone lines


  • 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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