W
ITHOUT
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OAX
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W
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OAX
27
(GB- '99)
476. Video distributor-amplifier.
It allows for the distribution of the video signal
coming from the cameras on 5 independent
lines. It is not necessary to close on 75
Ω
the
unused outputs.
Connection of the coaxial cable with distribution on maximum 5 column rising (serial and/or with video floor distributors)
Connection of coaxial cable with distribution on 9 columns rising
In video systems with different
columns rising or with a high
number of users, it is necessary
to use the video distributor-am-
plifier art.476.
It is not necessary to close the
unused outputs on the 75
Ω
re-
sistance.
If more than one video distributor is to be
used, an extra supply, art. 1281 is neces-
sary.
Connection of art. 476 as video amplifier for long distance systems
For this use, one output is to be connected; do not close the other outputs on the 75
Ω
resistance.
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M
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RRE
P/R
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P
ROJECT
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P
UNTO
V
IRGOLA
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S
LIM
Terminals
F
General ground
14 Positive power supply
IN Video signal input
1-2-3-4-5
Video signal outputs
Video ground (shield of the coaxial cable)
Technical data
Power supply
21 ± 3Vdc
Operating current at max. load
250mA
Gain at max. load
from 0 to 3.5dB (adjustable)
Gain with one output closed to 75
Ω
from 0 to 9dB
(adjustable)
Bandwidth
>5MHz
Operating temperature
0°÷+50°C
Maximum permissible humidity
90% RH
Housing DIN 8 modules A
INSTALLATION INSTRUCTIONS
