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Yeastar: S2 Module

Yeastar S2 Module (2 FXS Ports)

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S2 Module, Telecom, PBX Accessory, Yeastar, S2 Module

Telephony module with 2 analog FXS ports, connecting 2 analog telephones, fax machines, or POS terminals directly to Yeastar PBX systems.

verified2 Analog FXS PortsverifiedDual RJ11 Extension InterfacesverifiedConnects Analog Phones & FaxesverifiedCompatible with P-Series & S-SeriesverifiedPlug-and-Play Hardware Detection
KES 7,500.00KES 9,375.00
local_offerSave KES 1,875 today
1 Year Manufacturer Warranty
Variants
S2 Module2 Analog FXS Ports · Dual RJ11 Extension Interfaces · Connects Analog Phones & Faxes · Compatible with P-Series & S-Series · Plug-and-Play Hardware DetectionO2 Module2 Analog FXO Ports · 2 PSTN CO Landline Inputs · Connects Traditional Telkom Lines · Compatible with P-Series & S-Series · Built-in Lightning & Surge ProtectionSO Module1 FXS Port + 1 FXO Port · PSTN Lifeline Power Failover · Auto Loop-Through during Blackout · Compatible with P-Series & S-Series · Single Slot Hybrid DesignB2 Module2 ISDN BRI Ports (RJ45) · 4 Digital Voice Channels · Software-Configurable TE/NT Modes · Compatible with P-Series & S-Series · Digital ISDN Line InterconnectGSM Module1 GSM SIM Channel · Quad-Band 850/900/1800/1900 MHz · Cellular Voice & SMS Support · SMA Antenna Connector Included · Compatible with S-Series PBX3G Module1 3G UMTS SIM Channel · High-Definition 3G Voice · 900/2100MHz & 850/1900/2100MHz · SMA Antenna Connector Included · Compatible with S-Series PBX4G LTE Module1 4G LTE Cellular Port · High-Speed LTE Data & VoLTE · 4G / 3G / 2G Network Fallback · Dual External SMA Antennas · Compatible with P-Series & S-SeriesEX08 Expansion Board4 Telephony Module Slots · Supports up to 8 FXS/FXO/BRI Ports · Supports up to 4 Cellular Channels · Fits S100, S300, P560, P570 · Internal Motherboard Bus ConnectionEX30 Expansion Board1 E1/T1/J1 PRI Port (RJ45) · 30 Concurrent Digital Voice Channels · ISDN PRI Signaling Support · Fits S100, S300, P560, P570 · Seamless Carrier Digital TrunkingD30 ModuleAdds 100 IP Users · Adds 30 Concurrent Calls · Hardware DSP Voice Processing · Fits S100, S300, P560, P570 · Zero Reconfiguration Required

Product Overview

The Yeastar S2 Module is a plug-in telephony expansion daughterboard equipped with 2 FXS (Foreign Exchange Station) ports. It allows businesses to terminate two standard analog telephone handsets, analog conference phones, or fax machines directly into Yeastar IP-PBX systems without purchasing external analog telephone adapters (ATAs). Compatible with Yeastar P-Series IP PBXs (P550, P560, P570, P520) and S-Series VoIP PBXs (S20, S50, S100, S300), the S2 module features automatic hardware detection upon installation, robust line surge protection, and high-quality voice transmission.

Why Buy This Product

Seamless Analog Migration

Connect favorite analog desktop phones or conference stations directly to modern IP PBXs.

Reliable Fax Termination

Provides dedicated analog signaling for uninterrupted office fax machine operations.

Modular Architecture

Buy only the exact number of analog extension ports your business actually requires.

Best for These Applications

Hospitality & Multi-Room Setups

Terminating guest room analog phones into PBX module slots.

Corporate Common Areas

Supplying dial tone to lobby phones, elevator intercoms, and breakroom extensions.

Key Advantages

  • Zero External Power Supplies:Draws operating power directly from the PBX chassis, eliminating messy power brick clutter.
  • Full Telephony Feature Access:Connected analog handsets enjoy caller ID, voicemail, call transfer, and conferencing.
  • Cross-Generation Compatibility:Works identically across Yeastar P-Series Appliance edition and classic S-Series VoIP PBXs.

Frequently Asked Questions

It installs directly into P520, P550, S20, S50, and onto EX08 expansion boards in P560, P570, S100, and S300.
Yes, it supports Bellcore, ETSI, and NTT caller ID transmission formats.
Yes, you can freely combine S2 (FXS) and O2 (FXO) modules in available slots.

Technical Specifications

ParameterSpecification
Product Weight0.05
Shipping Weight0.12
Analog Extensions2
Expansion Slots1
System ArchitectureModular Telephony Plug-in Card
Dimensions47 x 45 x 15 mm
Operating Temperature0°C to 40°C (32°F to 104°F)
CertificationsCE, FCC, RoHS
Stock2
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