8-Channel PCM Voice Telephone Over Fiber Optic Multiplexer with SC Port & 10/100Mbps Ethernet - Telephone Converter/Extender for Office, Data Center & Telecom Applications

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: 10M/100M, full duplex, half duplex fully adaptive 2. Actual transmission bandwidth: 50Mbps per network port 3. Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN) 4. Physical interface: RJ45, support AUTO-MDIX (cross line straight line adaptive) Power supply: 1.Suitable working voltage AC100~240V, DC5V/2A. 2.US/EU/UK/AU power supply adaptor is optional. Applicable environment: Major communication operators, governments, enterprises and institutions. Package include: 1x PCM telephone Transmitter 1x PCM telephone Receiver 1x 3M SC/SC singlemode fiber patch cord 2x Power supply (default US, EU/UK/AU optional) Manual