ASL INTERCOM PS 680 Руководство пользователя - Страница 5
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FRONT PANEL CONTROLS
1
POWER ON/OFF switch
Mains power push button to switch the internal
power supplies On or Off
2
OVERLOAD LEDs
There is an overload LED for channel A, C and E
(powered by PSU 1) and an overload LED for
channel B, D and F (powered by PSU 2).
An overload LED illuminates if a circuit breaker
has shut off the 30V DC line power due to
overload. A cause for overload can be too many
user stations connected or a short-circuit in the
interconnecting cables. The circuit breaker resets
automatically 3 seconds after the cause of the
overload has been removed, restoring the line
power. During short-circuit the overload LED
flashes every 3 seconds. Every time mains
power is switched on the LED is lit for a few
seconds.
6.0
REAR PANEL CONTROLS & CONNECTORS
8
LINE connectors A – F (XLR-3)
To connect 6 intercom party lines (standard
microphone cable)
Pin assignments :
pin 1: 0V / ground shield
pin 2: +30V power wire
pin 3: audio wire
9
AUX INPUT connectors (XLR-3)
These two Aux inputs are electronically balanced
and accept mic or line level audio levels.
Pin assignments :
pin 1: 0V / ground
pin 2: signal +
pin 3: signal -
10
MIC / LINE switches
To select Line level or Mic level for each AUX
input. If mic level is selected, a +30V DC phantom
power is supplied to pins 2 and 3 of the AUX input
connector.
PAGE 5
User Manual PS 680 / October 2013 © ASL Intercom BV
3
POWER LED
This LED illuminates if line power is supplied by
the internal power supply
4
ALL MICS ON/OFF button
To mute all microphones of the connected
stations
5
ALL BUZZERS ON/OFF button
To mute all buzzers of the connected stations
6
AUX MASTER VOLUME control knobs
To adjust the level of each aux input signal to the
intercom lines
7
AUX MATRIX trimmers
To adjust the volume of each AUX input signal as
sent to each channel A - F
11
MIC GAIN trimmers
To adjust the sensitivity of the AUX input if mic
level is selected.
12
FUSE holder
The fuse protects the PS 680 against severe
internal damage, in case of malfunction of the
internal power supplies.
Before replacing the fuse the mains cord must
be removed. The fuse has to be T 1250 mA for
all mains voltages 100 – 240V AC.
13
MAINS inlet
IEC Mains connector.
For correct wiring see section 4.0.