1.5 SpecificationsSystem Outline 1-71.5.1 General DescriptionSystem Capacity Outside lines 3 max.Extensions 8 max. (12 max. with eXtra Device Port,16 max. with eXtra Device Port and 4-SLTExtension Expansion Card)Control Method CPU: 8 bit CPUControl ROM: 768 KB, Control RAM 128 KBSwitching Non Blocking PCM Time Sharing SwitchPower Supplies Primary 120 VAC, 60 Hz (0.7 A)Secondary Circuit Volt: +5V, +15V, +30VDialing Dial Pulse (DP) 10 pps, 20 pps, Tone (DTMF) Dialing, DTMF-DPConnector Outside lines 6-pin Modular Connector (RJ25C)Extensions/Doorphone 50-pin (Amphenol 57JE series or theequivalent)Pager/Music Source EIAJ RC-6701 A plug (two-conductorø 2.5mm in diameter)Extension Connection CableSMDR (Station Message Detail Recording)Interface Serial Interface (RS-232C) (D-SUB, 9-pin)Output Equipment PrinterDetail Recording Date, Time, Extension Number, OutsideLine Number, Dialed Number, CallDuration, Account Code, Caller ID, RingDuration, Timed ReminderStandard telephonesKX-T7420, KX-T7425, KX-T7431,KX-T7433, KX-T7436, KX-T7220,KX-T7230, KX-T7235, KX-T7250KX-T7130, KX-T7020, KX-T7030,KX-T7050, KX-T70551 pair wire (T, R)1 pair wire (D1, D2) or2 pair wire (T, R, D1, D2)2 pair wire (T, R, D1, D2)