Two mini telephone Optical

Product Features: This is a point to point voice telephone PDH optical transmission equipment, it is implemented in the form of a concise voice channel (FXO, FXS) multiplexing transmission over fiber. With alarm monitoring capabilities improve, high integration, low power consumption, stable performance, easy to use. Product Features: Provides two-way voice, support FXO, FXS way; optional voice interface for two / four-wire E & M audio; choose AC power 220V, DC -48V; Product parameters: optical interface (single fiber / dual fiber) Wavelength : Single-mode 1310nm / 1550nm; multimode 850nm / 1310nm fiber counts: transceiver pairs, single transceiver transmit power: -9dBm / -5dBm transmission length: 2 km multimode, singlemode 40,60,120 km receiver sensitivity: better than -36dBm (BER27dB Connector: SC / FC / ST * Features: Can be customized according to user needs for different types of voice interfaces interface characteristics (RJ45 / RJ11) FXS telephone ports ringing voltage:. 75V ringing frequency: 25HZ-wire Input impedance: 600Ω (hook) Return Loss: 40 dB FXO switch interface ring detection voltage: 35V ring detection frequency: 17HZ-60HZ-wire input impedance: 600Ω (hook) Return Loss: 40 dB