PAGE 8
User Manual PS 680 / Issue 2010 © ASL Intercom BV
11.0
EARTHING CONCEPT
12.0
TECHNICAL SPECIFICATIONS PS 680
System
dynamic range: 80 dB (1 kHz, THD < 1%)
call signal (send): +2.8 mA
call signal threshold (receive): +2.4V DC
supply voltage: +30 V DC (12 V to 32 V)
power interrupt time (mic mute): 0.1 sec
Intercom Line
line impedance: 350 Ω (1kHz), 2.2 kΩ (DC)
audio level: nom.
–18 dBu, max. +4 dBu
Switch Mode Power Supplies
mains voltage range: 90
– 240 V AC, 50 - 60Hz
DC output voltage: +30V DC (+/- 5%)
ripple and noise: < 11 mV rms
max. output power: 2x 45 watt
circuit-breaker delay time: 0.2 sec.
automatic reset time: 3.0 sec.
Aux Inputs
Input impedance:
30 kΩ (balanced line level)
4.6 kΩ (balanced mic level)
nominal input level:
-18 dBu to +6 dBu (line level)
-38 dBu to
–14 dBu (mic level)
max. input level:
+22 dBu (line level)
+2 dBu (mic level)
phantom power +30 V DC (mic level selected)
Dimensions & Weight
Width: 19" (483mm)
Height: 1U (44.5mm)
Depth: 250mm
Weight: 2 Kg
0 dBu defined as 775 mV into open c
irc
uit
ASL reserves the right to alter specifications without prior notice
