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 |
The Apple MacBook Pro (Retina, 15-inch, Mid 2017 - A1707) delivers exceptional computing power and ultra-fast storage in a sleek, precision-milled aluminum unibody enclosure. Engineered for creative professionals, developers, and power users, it features a stunning 15.4-inch Retina display with LED backlighting, IPS technology, and P3 wide color gamut support, offering remarkable detail and color accuracy for photos and high-resolution video content.
At its core, this configuration is driven by a high-tier Quad-Core 3.1 GHz Intel Core i7 processor (Kaby Lake) with Turbo Boost speeds reaching up to 4.1 GHz. Equipped with dual graphics processing—Radeon Pro discrete graphics alongside integrated Intel HD Graphics 630—it automatically switches between processors to balance performance and battery efficiency. Packed with 16 GB of 2133 MHz LPDDR3 memory and an ultra-fast 1 TB PCIe-based onboard flash storage module, it delivers fluid multitasking and instant file access. The innovative Touch Bar with integrated Touch ID replaces the traditional function keys with dynamic, context-aware controls for maximum productivity.
Comprehensive Key Features:
Pro-Grade Quad-Core Performance: Powered by a 3.1 GHz Quad-Core Intel Core i7 processor (Turbo Boost up to 4.1 GHz) with 8 MB shared L3 cache.
Brilliant Retina Display with P3 Color: 15.4-inch IPS display featuring 500 nits brightness and P3 wide color gamut for true-to-life visual fidelity.
Interactive Touch Bar & Touch ID: Multi-Touch glass strip providing context-sensitive shortcuts alongside quick, secure Touch ID biometric authentication.
Dual Graphics Architecture: Combines discrete Radeon Pro graphics with integrated Intel HD Graphics 630 for efficient graphic rendering and power optimization.
Massive High-Speed Storage: Includes a large 1 TB PCIe-based onboard SSD delivering read/write speeds up to 3.2 GB/s.
Versatile Thunderbolt 3 Connectivity: Four high-speed USB-C / Thunderbolt 3 ports supporting power charging, DisplayPort output, and data transfers up to 40 Gbps.
Expansive Trackpad & Audio: Oversized Force Touch trackpad paired with high-fidelity stereo speakers featuring wide dynamic range and deep bass.
Extended Technical Specifications:
Model / SKU: MacBook Pro (15-inch, Mid 2017) / Model Identifier: MacBookPro14,3 / Model Number: A1707
Processor: 3.1 GHz Quad-Core Intel Core i7 (7700HQ "Kaby Lake", Turbo Boost up to 4.1 GHz) with 8 MB L3 cache
Graphics:
Discrete Graphics: AMD Radeon Pro 560 with 4 GB of GDDR5 memory (or Radeon Pro 555)
Integrated Graphics: Intel HD Graphics 630
Display: 15.4-inch (diagonal) LED-backlit IPS Retina display (2880 x 1800 native resolution at 220 ppi, 500 nits, P3 color)
Memory: 16 GB of 2133 MHz LPDDR3 onboard memory
Storage: 1 TB PCIe-based onboard flash storage
Wireless & Connectivity:
Wi-Fi: 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible
Bluetooth: Bluetooth 4.2 wireless technology
I/O Ports:
(4) Thunderbolt 3 (USB-C) ports (Supports Charging, DisplayPort, Thunderbolt 40 Gbps, USB 3.1 Gen 2 up to 10 Gbps)
(1) 3.5 mm headphone jack
Audio & Camera:
Stereo speakers with high dynamic range and 3 microphones
720p FaceTime HD camera
Keyboard & Input: Full-size backlit keyboard with Touch Bar and integrated Touch ID sensor; Force Touch trackpad
Battery & Power: Built-in 76.0-watt-hour lithium-polymer battery; 85W USB-C Power Adapter