DUOPHONE SYSTEM 209 (430-0617) Specifications Faxback Doc. # 8070 Pulse Dialing Rate.................................................10 pps Make/Break Ratio..................................................40/60 % Inter-Digit Pause..................................................800 ms Redial Memory Capacity Pulse Mode......................................................32 Digits Tone Mode.......................................................31 Digits Tone Dialing................................................Standard DTMF Connector..................................................USOC Type RJ14 Access Pause....................................................2 Seconds Memory Capacity Pulse Mode......................................................16 Digits Tone Mode.......................................................15 Digits Memory Position.Capacity...................21 Stations (including redial) Intercom Reception RF Frequency Originate.........................................................390 kHz Answer............................................................320 kHz Signal To Noise Ratio......................45 dB at 10 mV Input (handset) 48 dB at 10 mV Input (speaker) Audio Output at 10mV Input Speaker.at 1 kHz Dev...............................................-2 dBm Handset.at 1 kHz Dev..............................................-21 dBm Transmission RF Frequency Originate.........................................................320 kHz Answer............................................................390 kHz RF Output Voltage.Across 135 Ohm..................................-21 dBv Dimensions............................4 1/8 x 7 1/8 x 9 1/16 Inches (HWD) Weight........................................................2 lbs 3 oz. Operating Parameters Interface......................................................Loop Start Ringer...............Standard Bridged Ringer 20-60 Hz sine or square wave 40-105 volts ring signal Current......................................5-12 VDC (off hook) 20-70 mA Resistance..........................10 Mohm (on hook), 210 Ohm (off hook) (jlc-08/17/93) (smm 08/24/93)