30Voice+4E1 PCM Fiber Optic Multiplexer
Brellet Telecom's PCM Fiber Optic Multiplexer provides 30-channel telephone with 4-channel E1 interface. It is very flexible. It has alarm function. It is reliable and stable during the work and has the features of low power consumption, high integration and small size.
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Features
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Based on self-copyright IC
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E1 interface comply with G.703, adopts digital clock recovery and smooth phase-lock technology Voice port supports FXO and FXS port
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Support FXO/FXS, EM2/4 audio, Magnet telephone Interface, FXO port docking with program-controlled switchboard, FXS port connected to the user's telephone
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1~30channel Voice access, supports caller ID feature and reverse polarity billing functions
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Support various sites mutual number allocation function
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Telephone interface with lightning protection, lightning reached IEC61000-4-5 Short circuit current wave 8 / 20μs, the peak output voltage 6KV open standards
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The transmission distance is up to 2-120Km without interruption
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AC 220V, DC-48V, DC24V can be optional