BASIC SERIES ARCHITECTS AND ENGINEERS SPECIFICATIONS
17
BASIC SERIES TECHNICAL SPECIFICATIONS
General
Dynamic range 80 dB (1kHz,THD<1%)
CALL signal (send) +2,4 mA
CALL signal threshold (receive) +2,5 VDC
Power Supply
Mains voltage range 100 - 240 V AC 50/60Hz auto select
DC output voltage +30 V +/-5% DC
Max output current 1,5 A continuous,2 A peak
Intercom Line
Impedance 350 Ohm at 1 kHz
Audio level nom. -18 dBu;max.+4 dBu
Mic Pre-amp
Mic impedance (headset mic) 200 Ohm
Gain 40 - 70 dB adjustable internally
Frequency response 200 Hz - 13 kHz (-3dB)
Output Amp
Max output level 9 V rms
Max output power (headset) 400 mW rms into 200 Ohm
Headphone impedance 50 ohm - 2 K ohm
Sidetone Rejection Adjustable 0 - 30 dB
Note:0 dBu defined as 775 mV rms into open circuit.
In keeping with our policy of continued improvement,ASL reserve the right
to alter specifications without further notice.This range of products was
designed,developed and produced by ASL Intercom BV, Utrecht,
The Netherlands.
The intercom system shall be of the full duplex type and
consist of one or two party lines (so-called 'channels'),
to which all intercom stations are connected,enabling
the users to 'talk' and 'listen' simultaneously.
The user stations shall be powered by an intercom
power supply with built-in line impedance via the
interconnecting cables.All interconnecting cables shall
be of the balanced microphone cable type, with
connectors of the XLR-3 type.
All user stations shall have heavy gauge steel or strong
ABS housing and high quality controls and connectors.
All rack mount housings shall be of the 19" format.
All intercom audio circuitry shall provide a dynamic
range of 80dB and a frequency range of 200 Hz to 13
kHz (-3dB),power amplification for headsets of 400
mW into 200 Ohm and a 'high intelligibility' frequency
correction system.
All user stations shall have a CALL system,offering both
flashing visual and audible signaling.Every channel
shall have its own CALL button and CALL indicator on
each station.
All user stations shall have a volume control of the
audible CALL signal and,for each channel,trimmers for
side-tone adjustment.
It shall be possible to connect any headset,with a
headphone impedance 50 ohms - 2K ohms and with a
dynamic or electret microphone.
All power supplies shall be of the switch mode type and
may be connected to mains voltages from 100 -240V
AC (50/60 Hz).Power supplies shall be fully protected
and shall have LED status indication for 'power on'.
The intercom system shall provide a volume controlled
input for balanced auxiliary program audio signals.
The intercom product range shall at least embody:a
two channel master station with built-in power supply,
a single channel beltpack,a single channel separate
power supply,a dual channel power supply and
accessories such as line sockets,line split boxes,a CALL
beacon,headsets and handsets.
The intercom system shall be the BASIC SERIES of ASL
Intercom.
BASIC SERIES
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