ASL INTERCOM PS 289, Руководство пользователя

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User manual PS 289 / Issue 1 © 2006 ASL Intercom, Utrecht, The Netherlands
12.0 TECHNICAL SPECIFICATIONS PS 289
POWER SUPPLY
mains voltage range All units : 100 – 240 V 50/60Hz AC
DC ouput voltage +30 V +/- 5% DC
ripple and noise < 11 mV rms
max. output current 2.5 A continous, 3.5 A peak
circuit breaker delay time 0.2 sec.
automatic reset time 3.0 sec.
DC Input 12 – 28 V
AUX INPUT
input impedance 11 Kohms
Nominal input level -20 dBu to +10 dBu
Max. input level +21 dBu
DIMENSIONS AND WEIGHT
width 19" (483 mm)
height 1U (44.5 mm)
depth 150 mm
weight 1.85 Kg
GENERAL SYSTEM SPECIFICATIONS
intercom line impedance 350 ohms (1kHz)
2.2 Kohms (DC)
intercom line audio level nom. –18 dBu
Max. +4 dBu
dynamic range 80 dB
call send signal +2.8 mA
call receive signal threshold +2.4 V DC
supply voltage +30 V DC (12 V to 32 V)
mic mute power interrupt time 0.1 sec.
Note: 0 dBu = 775 mV into open circuit.
ASL reserve the right to alter specifications without further notice.