RPU-Ì-Å module is intended for digitization of speech signal that is received from intercommunication and switching equipment and for its reconversion; it is also intended for interaction with computing system of ÀÒÌ-2E terminal in interface card mode.
2. INFORMATION STREAM PARAMETRS AT MODULE INPUT AND OUTPUT
• Information rate in «VOCODER» mode is 1200/2400 bit/s, in «LINEAR PREDICTIVE VOCODER» mode - 1200/2400/9600 bit/s.
• Signal exchange with terminal computing system - via serial interface.
• Voice path:
Intercommunication and switching equipment interface provides speech signal and on-line control («TANGENTA», «SMPR-Ê») exchange.
Input resistance - 600 Ohm;
Output resistance - 600 Ohm;
Output level rating value is minus 3.5 dB.
• Power supply
DC power supply, 6.3V and minus 6.3V voltage, consumption current is up to 0.2A and 0.08A respectively.
• Operation parameters
Continuous twenty-four-hour operation in the room without attending personnel;
Failure interval - no less than 20 000 hours;
Lifetime - 10 years.
• Construction parameters
Overall dimensions - 234x168x18 mm;
Weight - up to 0,5 kg.
• Ambient conditions
Operating temperature - minus 40°C to 55 °C;
Low atmospheric pressure - to 5 mm of mercury column;
Sinusoidal vibration, 10 to 2000 Hz frequency;
Humidity - to 98% at +35°C ambient temperature.