72 PROTON 206/308 V1 System Manual
Technical Specifications
System capacity:
Transmission Parameters:
CO lines (FXO)
Stations Lines (FXS)
Environmental Conditions
Hardware Application
PROTON-
206
PROTON-
308
CO lines (FXO) Analog PSTN/CO Line connectivity. 2 3
Stations (FXS) Analog Phone, Modem, Fax connectivity. 6 8
DTMF Decoders 2 2
DTMF Encoders 2 2
Speech Paths 3 7
Return Loss More than 18dB
Insertion Loss Less than 2dB
Inter-channel cross-talk Less than -65dB
Idle channel noise Less than -65dBm
Longitudinal Balance Better than 40dB
Switching Space division CMOS crosspoint switch
Off Hook Line Impedance 600 Ohms
Loop Limit 1500 Ohms
Pulse Dialing 10 PPS ± 5%, Make/Break = 33:37
DTMF Dialing and Detection As per ITU-T Q.23 & Q.24
Protection Solid State (over voltage and over current protection)
Connectivity Push-type (Single pair wire, 0.5mm/0.019inch)
Loop Limit 250 Ohms Max. (Excluding Telephone)
Loop Current 35mA Max.
Ring Voltage 50Vrms, 25Hz
Off Hook Line Impedance 600 Ohms
Pulse Detection 10 PPS ± 5%, Make/Break = 33:37
DTMF Detection As per ITU-T Q.23 & Q.24
Protection Solid State (over voltage and over current protection)
Connectivity Push-type (Single pair wire, 0.5mm/0.019inch)
Power Failure Transfer All CO lines to fixed stations
Power Supply 90-265V AC, 47-63Hz, 10W typical
Operating Temperature 0°C to +55°C (34°F to 131°F)
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