Power Banks
Brother Printers
IP PBXs
Yeastar O2 Module (2FXO) YST-O2
Key Features
Brand:Yeastar
2 FXO Ports – Connects two analog PSTN lines to your IP PBX
Compatible with MyPBX and S-Series PBX Systems
Flexible Call Routing – Configure inbound and outbound call rules with ease
Plug-and-Play Installation – Installs easily into available expansion slots
High Voice Quality – Ensures stable analog-to-VoIP communication
Cost-Effective Integration – Use existing PSTN lines without extra infrastructure
1 Year Warranty
Yeastar O2 Module (2FXO) YST-O2 Central Analog Trunk Expansion Infrastructure Component
The Yeastar O2 Module (2FXO) YST-O2 is an enterprise-grade, field-installable hardware expansion component engineered to introduce two native analog Public Switched Telephone Network (PSTN) trunks directly into compatible Yeastar IP-PBX phone systems. Purpose-built to eliminate reliance on external media converter boxes, this low-profile circuit card mounts internally onto the main telephone exchange board. Whether you are maintaining a reliable copper landline connection for corporate offices in Westlands, securing emergency analog fallback channels for a financial hub in the Nairobi CBD, or deploying localized PSTN connectivity in Kilimani, this robust module ensures continuous telecom infrastructure flexibility and hardware-level uptime.
Direct Analog Trunk Aggregation and Seamless Network BridgingÂ
Integrating the Yeastar O2 module into your communications exchange is an exceptionally effective method to preserve traditional landline connections and cleanly route them into your modern IP voice environment.Â
-
- Dual-Channel Analog Line Aggregation: Empowers your telephony system to house 2 active traditional analog phone lines, instantly adding dedicated physical carrier trunks into your corporate call distribution loops in Upper Hill.
- Universal PSTN Signaling Interoperability: Natively supports worldwide Loop Start analog trunk signaling, ensuring plug-and-play matching with domestic and international telecommunication service providers in Parklands.
- Hardware-Level Impedance Matching: Outfitted with software-configurable AC impedance profiles to ensure natural audio transmission, eliminating line echo and signal loss along Mombasa Road.
- Zero-Footprint Internal Installation: Connects seamlessly inside the main chassis using specialized pin-out arrays, drawing operating power directly from the PBX system bus without requiring loose external cables or wall transformers.
Why Deploy the Yeastar O2 (2FXO) Module
The Yeastar O2 module delivers the precise combination of physical trunk redundancy, localized utility dialing, and zero-footprint hardware scalability required for active workplaces.
1 High-Reliability Landline Redundancy and Business Uptime
Protect your business from sudden internet drops, fiber network cuts, or cloud VoIP platform outages. Acting as a critical physical failover gateway, the module ensures that if your primary digital SIP connections go dark, your essential client hotlines, sales queues, and emergency communication channels are automatically rerouted through traditional copper telephone lines to keep your workflow fully operational.
2 Preservation of Local Landline Infrastructure
Drastically reduce your monthly corporate toll bills by leveraging existing local carrier relationships. By placing physical PSTN trunks directly into your exchange, the PBX can harness legacy local call rates or keep public phone numbers active that are widely recognized by your customer base, allowing a smooth migration to VoIP without losing your physical network footprint.Â
3 Universal Component Compatibility and Modular Scalability
Take the guesswork and extra hardware deployment costs out of your system upgrades. The YST-O2 module matches the exact technical parameters required to plug directly into the internal expansion slots or expansion boards of major Yeastar hardware lines, allowing IT teams to scale up physical analog trunk capacity dynamically as the organization grows.
Key Technical Specifications
- Product Brand Identity: Yeastar Telephony Module Series
- Model Configuration: YST-O2 (O2 Module)
- Telephony Interface Density: 2 x Analog FXO Ports (Foreign Exchange Office)
- Physical Hardware Connector: Integrated RJ11 Interface Pinouts on the Main Bracket
- Line Signaling Standard: Traditional Loop Start Analog Trunk Compliance
- System Power Parameter: Powered Entirely via Internal IP-PBX Motherboard Bus Interface
- Target Hardware Compatibility: Natively Optimized for Modular Yeastar S-Series (such as the Yeastar S20 and Yeastar S50), Yeastar P-Series Appliances (including the P550, P560, and P570 via expansion boards), and legacy MyPBX Series
- Advanced Signaling Profiles: Supports Caller ID Generation (FSK/DTMF), Loop Current Detection, and Custom Progress Tones
