Preliminary Issue 2006 2.0 GENERAL DESCRIPTION The LKA-200 is a single-line telephone which primarily intended to be used in PBX, Key System, Hybrid, and Central Office applications. Most of the telephone features provide a solution that meets the necessary requirements.
There are three different melodies with high, medium, low and off sound level. See section 5.0 for programming procedure. 4.0 HARDWARE REQUIREMENTS Each telephone model is comprised of the following major components: Baseset Handset Handset cord...
Items Lower 2800 1000 6.1.2 Telephone noise Required result: Less than - 60 dB for all conditions. 6.1.3 Receiver noise Required result: Less than - 85 dB for all conditions. 6.2 NETWORKING SIGNAL CHARACTERISTICS 6.2.1 DTMF Level DTMF Level generated for each of the two fundamental frequencies under 900 ohm termination at loop current of 20 mA.
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_________________________________________________________________________________________________ 6.2.3 Frequency Deviation The accuracy for each of the two fundamental frequencies compare to DTMF frequency table. Required result: Less than + 1.5 % 6.2.4 DTMF Signal Duration Required results: Signal duration time : Inter-digit time 6.2.5 DTMF Total Harmonic Distortion Required result: Less than –20 dB at 20 mA current condition.
_________________________________________________________________________________________________ 6.4 DC CHARACTERISTICS 6.4.1 on-hook AC impedance Required result: f < 200 Hz : 697 < f < 1,633 Hz : f > 3,200 Hz : 6.4.2 off-hook AC impedance Required result: 400 ~ 1,400 ohm 6.4.3 Return Loss Required result: More than 10 dB through frequency range 200 ~ 3,200 Hz 6.5 CALL ALERTING CHARACTERISTICS 6.5.1 Minimum Ring Start Voltage...