Installation manual

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Operator Manual for MC-4044 Series 5 G/93040 Issue 6 Page 14
SPECIFICATIONS
AMPLIFIER
Frequency Range 300 Hz to 3.4 kHz (-3dB).
Input - Output Impedance 220 ohm + (120 nF // 820 ohm) (complex).
Return Loss > 17 dB, 300 Hz to 3400 Hz.
Insertion Gain 20 dB +/- 2 dB maximum.
Output Level -10 dBm → 0 dBm programmable.
Noise < -50 dBm unweighted, 300 Hz to 3.4 kHz.
Method of operation Software controlled AGC with noise discrimination.
CONTROL LOGIC
Processor Motorola 6809.
Random Access Memory 8K static.
Program Memory 64K byte EPROM.
Interface 8 bit latched data.
Number, Status & Option Storage Electrically Erasable Programmable Read Only Memory (EEPROM).
Dialling Pulse (Decadic) Electronic, controlled by processor.
10 pps. 34/66 Mark/Space ratio.
Tone (DTMF) Electronic, controlled by processor.
70 ms on, 70 ms off.
Number Storage 1 → 8 phone numbers of up to 20 digits each (local, STD or IDD calls),
programmable from Keypad or remotely by telephone.
Displays Single digit 14mm 7 segment LED.
Power On LED (Red).
Divert On LED (Green).
Controls 12 button keyboard.
Firmware Storage Medium EPROM
System Number V5841
Speech Number V2.05
RECORDED VOICE ANNOUNCEMENTS
Standard Voice Announcements
Storage medium EPROM.
Recording method 32K bit/sec ADPCM.
Personalised Voice Announcements (Optional)
Storage medium Linear EEPROM.
Recording method Analogue, time sampled at 8 kHz.
Record time Up to 32 seconds.
DETECTORS
Activity detector
Sensitivity Software adjustable.
DTMF detector
Sensitivity > -40 dB.
Detect time > 50 ms.
Dial Tone detector
Frequency range 380 Hz - 550 Hz.
Sensitivity > 50 mV.