The Yeastar O2 Module is a high-performance 2-port FXO (Foreign Exchange Office) dual-daughter card engineered to seamlessly expand the physical trunking capabilities of Yeastar IP-PBX phone systems. Designed for integration with Yeastar MyPBX series, S-Series (S20, S50, S100, S300), and P-Series (P550, P560, P570) IP-PBX hardware, the O2 module adds 2 physical RJ11 FXO ports to connect traditional analog central office (PSTN/POTS) lines directly into your modern VoIP environment.
This module allows businesses to maintain legacy PSTN landline connections for incoming/outgoing calls, backup emergency trunking during internet outages, and local landline number preservation alongside SIP trunks. Built with advanced echo cancellation and impedance matching, the Yeastar O2 module guarantees crystal-clear voice quality, stable call handoffs, and effortless plug-and-play installation onto mainboards or expansion boards without requiring complex external power adapters.
Comprehensive Key Features:
Dual FXO Trunk Connectivity: Provides 2 physical RJ11 ports to terminate 2 traditional analog PSTN (POTS) phone lines into the IP-PBX system.
Broad Yeastar Hardware Compatibility: Works natively with Yeastar S-Series (S20/S50/S100/S300), P-Series Appliance/Standard editions, and MyPBX series.
PSTN Failover & Lifeline Support: Ensures unbroken business communication by automatically routing calls over analog lines during VoIP/internet outages.
Plug-and-Play Modular Installation: Easily installs directly onto the IP-PBX mainboard or expansion card slot without external cabling or drivers.
High-Quality Audio & Echo Cancellation: Features built-in hardware impedance matching and digital echo cancellation for crisp voice calls.
Caller ID & Signal Detection: Full support for Bellcore, ETSI, and DTMF caller ID detection, line polarity reversal, and busy tone disconnection.
Extended Technical Specifications:
Manufacturer / Brand: Yeastar Information Technology Co., Ltd.
Model / SKU: Yeastar O2 Module (O2-FXO)
Interfaces / Ports: (2) RJ11 FXO Ports (Connects to PSTN / CO Lines)
Loop Current: 15 mA to 120 mA
Ring Frequency: 15 Hz to 50 Hz
Ring Voltage: 40V RMS to 90V RMS
Caller ID Support: Bellcore Type 1 & 2, ETSI, NTT, DTMF
Impedance Matching: Programmable to match global PSTN standards
Operating Temperature: $0^\circ\text{C}$ to $40^\circ\text{C}$ ($32^\circ\text{F}$ to $104^\circ\text{F}$)
Storage Temperature: $-20^\circ\text{C}$ to $65^\circ\text{C}$ ($-4^\circ\text{F}$ to $149^\circ\text{F}$)
System Requirements: Yeastar S-Series, P-Series, or MyPBX IP-PBX mainboard / EX08 expansion board slot
| brand | Yeastar |