4 Port POTS RJ11 Landline Phones and 2 Gigabit Ethernet Over Fiber Optic Converter Extender Kit, Telephone Over Fiber – Singlemode 20Km, Multimode 500m

Specification: Phone RJ11 port specifications: 1.Voice coding: PCM coding, 64Kbps per voice 2.Crosstalk attenuation: ≥65dB 3.Balanced noise: ≤63.7dBmop 4.Insertion loss: -3 ± 0.75dB 5.Frequency characteristics: 300 to 3400 Hz (-0.6 to +3 dB) 6.Relay port (FXO): connected to the switch 7.Two-wire AC input impedance: 200+680//0.1 Ω (three components) 8.Ringing voltage: 35 ~ 150V 9.Ringing frequency: 17~60HZ 10.Return loss: 20 db 11.User Interface (FXS): Connect to the user's telephone 12.Two-wire AC input impedance: 200+680//0.1 Ω (three components) 13.User line loop resistance: less than 1KΩ (including phone) 14.Ringing voltage peak-to-peak value: 110~150V 15.Ringing frequency: 22~28HZ 16.Feed voltage: 28V 17.Feed current: 20~50mA; 18.Return loss: 20 db 19.Bell flow: AC90 plus or minus 15V Ethernet RJ45 port specifications: 1. Rate: 100M/1000Mbps, full duplex, half duplex fully adaptive 2. Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN) 3. Physical interface: RJ45, support AUTO-MDIX (cross line straight line adaptive) Power supply: 1.Working voltage AC100~240V, DC5V/2A. 2.US/EU/UK/AU power supply adapter is available. Package include: 1x Telephone over fiber Transmitter 1x Telephone over fiber Receiver 1x FREE 3M SC/SC SM fiber patch cord. 2 x External power supply adapters 1 x Manual

• Extend your landline phones and Network: 4 Independent telephone lines + 2 Gigabit Ethernet (10/100/1000 Mbit/s) Autosensing port over fiber optic to far end. Gigabit Ethernet connection will over SAME fiber optic along with 4 phones.
• Suitable for Both Fiber Types (Single-mode and multimode). Single-mode (SM) fiber for a long distance up to 20 km(12.4miles), Multimode (MM) fiber for a distance up to 500m(0.31miles).
• Support Called id & Ring, even Fax Supported. No Delay Transmission and Protocol Support: Unlike VoIP products - these converters transmit signals directly over fiber cables, thus offering NO DELAYS, plus support for fax & legacy applications that is not supported by VoIP lines.
• Compact design, Durable Metal. Bilateral heat dissipation. LEDs for power supply and optical fiber link, data status indication can monitor the operating status of the system.
• Simple to Install, Plug and Play, No setup or configuration needed, SC connector for fiber optical port, RJ-11 connector for telephone ports and RJ-45 for Ethernet.