19
DI-010 TECHNICAL SPECIFICATIONS
Input impedance 1M ohm to >=100K ohm
(depending on attenuator position)
Max.Input Level +10 dBu to +42 dBu
(depending on attenuator position
and load)
Max.Output Load >200 ohms
Max.Output Level +9dBu to +12 dBu
(depending on load)
Frequency Response -3 dB/40Hz - 20 kHz
Harmonic Distortion <0,1 %
Noise <-100 dBu
Filters 12 dB/octave.
Power Optimal performance
with pahntom power 48 VDC
TR-2 TECHNICAL SPECIFICATIONS
Max Output Level + 26 dBu
Frequency
Response 12 Hz - 40 kHz
Total Harmonic < 0.02% at any
output level up to 0 dBu
< 0.03% at any output
level up to +10 dBu
Insertion Loss 1.6 dB
Common Mode 50 Hz:78 dB/1 kHz:
Rejection Ratio 69 dB/ 20 KHz: 42 dB
The intercom system shall be of the full duplex type and
consist of one or more party lines (so-called 'channels'),
to which all user stations are connected,enabling the
users to 'talk' and 'listen' simultaneously.
The user stations shall be powered by intercom power
supplies 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,
aluminum or strong ABS housing and high quality
controls and connectors.All rack mount housings shall
be of 19" format.
All user stations shall provide automatic headset
detection and reverse power protection.
All intercom audio circuitry shall provide a dynamic
range of 80dB and a frequency range of 200 Hz to 15
kHz (-3dB),high power amplification for headsets of 1
W rms, and a 'high intelligibility' frequency correction.
All user stations shall have a CALL system,offering both
flashing visual and audible signaling.It shall be possible
to centrally disable all audible CALL signals. Each
channel shall have its own CALL button and CALL
indicator on each station.All user stations shall have
volume control of the audible CALL signal and,for each
channel,trimmers for side-tone adjustment.
All user stations shall have 'Mic Mute' circuitry.
A Mic Mute push button on the intercom power supply
shall enable the user to centrally disable all
microphones connected to the user stations.
All TALK switches shall be latching or momentary. It
shall be possible to connect any dynamic headset with
headphone impedance 100 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' and
'overload'.
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,four or six channel master
Loudspeaker Station with built-in power supply; one
and two channel beltpacks;one, two, four and six
channel speaker stations; two and six channel separate
power supplies, 6-channel matrix switches, 4-wire and
telephone interfaces and accessories such as line-
sockets,line split boxes,a CALL beacon, headsets and
handsets.
The intercom system shall be the PRO series of ASL
Intercom.
SPECIAL AUDIO PRODUCTS
PRO SERIES ARCHITECTS AND ENGINEERS SPECIFICATIONS
(11 pages)
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