Sennheiser SZI 20 Instructions for Use - Page 10

On/off, Switch, Automatic, Function, Technical, Infrared, Auxiliary, Radiator

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ON/OFF SWITCH - AUTOMATIC ON/OFF FUNCTION SZI 20 infrared auxiliary radiators and NT 20 power supply units do not have an ON/OFF switch. • LED Ll lights up after the power supply unit has been connected to the mains. L1 indicates that the unit is ready for use (STAND-BY). TheSZI20 infraredauxiliaryradiatorfeatures an automatic on/off function which is set in action by the incoming RF signal. L2 on the front panel of the unit indicates that the transmitter is broadcasting a signal. TECHNICAL DATA Carrier frequencies Receiving diodes RF imput voltage for max. modulation Imput impedance RF input/socketJ2 RF input/socketJ1 Supply voltage Current consumption Dimensions Weight Delivery includes SZI 20 INFRARED AUXILIARY RADIATOR 40 - 600 kHz 12 400 mV approx. 20 k≤ 3.5 mm mono jack, switchable terminating resistor 3.5 mm mono jack 24 - 27 V via 2-pole Texas socket approx. 120 mA approx. 118 x 25 x 90 mm infrared auxiliary radiator: approx. 140 g power supply unit: approx. 270 g 1 SZI 20 infrared auxiliary radiator Available accessories: NT 20 ... power supply units, IZK 20 clips, IZM 20 cluster mounting sets, diverse connecting cables. Please find enclosed with this product a list of the IR 20 modules available. Subject to alterations. Errors and omissions excepted. 10

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ON/OFF
SWITCH
-
AUTOMATIC
ON/OFF
FUNCTION
SZI
20
infrared
auxiliary
radiators
and
NT
20
power
supply
units
do
not
have
an
ON/OFF
switch.
•
LED
Ll
li
ghts
up
after
the
power
supply
unit
has
been
connected
to
the
mains.
L1
indicates
that
the
unit
is
ready
for
use
(STAND-BY).
The
SZI
20
infrared
auxiliary
radiator
features
an
automatic
on/off
function
which
is
set
in
action
by
the
incoming
RF
signal.
L2
on
the
front
panel
of
the
unit
indicates
that
the
transmitter
is
broadcasting
a
signal.
TECHNICAL
DATA
SZI
20
INFRARED
AUXILIARY
RADIATOR
Carrier
frequencies
40
-
600
kHz
Receiving
diodes
12
RF
imput
voltage
for
max.
modulation
400
mV
Imput
impedance
approx.
20
k≤
RF
input/socket
J2
3.5
mm
mono
jack,
switchable
terminating
resistor
RF
input/socket
J1
3.5
mm
mono
jack
Supply
voltage
24
-
27
V
via
2
-pole
Texas
socket
Current
consumption
approx.
120
mA
Dimensions
approx.
118
x
25
x
90
mm
Weight
infrared
auxiliary
radiator:
approx.
140
g
power
supply
unit:
approx.
270
g
Delivery
includes
1
SZI
20
infrared
auxiliary
radiator
Available
accessories:
NT
20
...
power
supply
units,
IZK
20
clips,
IZM
20
cluster
mounting
sets,
diverse
connecting
cables.
Please
find
enclosed
with
this
product
a
list
of
the
IR
20
modules
available.
Subject
to
alterations.
Errors
and
omissions
excepted.
10