Specifications - Philips SM30 User Manual

15 SM30 SYSTEM
GENERAL
The specification relates to a Control Centre with corresponding modules.
MICROPROCESSOR HARDWARE
- EEPROM data storage time
RECORDED MESSAGE MODULE
- data retention
- audio bandwidth
- max. total recording time
- max. number of messages
- microphone phantom power supply voltage
AUDIO OUTPUTS
Music input to music output
- gain:
control range
mute
- input level
- output level symmetrical:
nominal
maximum
- amplifier output distortion:
THD at nominal level
THD at max.output
- amplifier S/N output at nominal level
Call Station or Microphone input to call output
- output level symmetrical:
nominal
maximum
- Microphone Input Module:
input level
frequency response
signal-to-noise ratio
- Call Station:
input level
frequency response
signal-to-noise ratio
- amplifier output distortion:
THD at nominal level
THD at max.output
Music and call Output Impedance
- at 1 kHz
SPECIFICATION
: > 10 years
: > 30 days
: 320 - 6000 Hz
: 65 seconds
: 4
: 12 V DC
: > 60 dB (2 dB steps)
: > 80 dB
: > 150 mV
: 0 dBV
: +12 dBV
: 0.1%
: 0.3%
: > 80 dB (flat)
: 0 dBV
: +12 dBV
: > 1.5 mV
: 50 - 15000 Hz (± 2 dB)
: 68 dB (flat)
: > 84 db (SPL)
: 440 - 12500 Hz (± 3 dB)
: 58 dB (flat)
: 0.1%
: 0.3%
: < 50 Ω
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