1-30 Chanel Voice Fiber Optical Multiplexer
3
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Maximum transmission distance: 40Km
Transmission distance: 40KM@9/125um single mode fiber, attenuation
(0.35dbm/km)
Wave Length: 1310nm
Transmitting power: -9dBm (Min) ~-8dBm (Max)
Receiver sensitivity: -27dBm (Min)
Link budget: 18dBm
FXS Phone Interface
Ring voltage: 75V
Ring frequency: 25HZ
Two-line Impedance: 600 Ohm (pick up)
Return loss: 40 dB
FXO Switch Interface
Ring detect voltage: 35V
Ring detection frequency: 17HZ-60HZ
Two-line Impedance: 600 Ohm (pick up)
Return loss: 40 dB
E1 Interface
Interface Standard:
comply with protocol G.703;
Interface Rate:
2048Kbps±50ppm;
Interface Code:
HDB3;
E1 Impedance:
75Ω (unbalance), 120Ω (balance);