Monacor VAM-3 Manuel d'utilisateur télécharger pdf (Page 8)

Please unfold page 5. Then you can always see the

operating elements and connections described.

1 Operating Elements and Connections

1 Terminal for the control channel output to connect

a signal device or another additional unit

The terminal is placed at ground with activated

control channel (also see fig. 2 and chapter 4.2.3)

2 Ground terminal for the control channel output

3 Selector switch for the polarity of the video signal

lower switch position

for standard picture transmission

upper switch position

for encoded picture transmission with negative

video signal polarity (see chapter 4.3.3)

4 Yellow phono jack for the video signal output, e. g.

for the connection of a monitor

5 Phono jacks for the audio signal output:

white jack for the left channel (audio A)

red jack for the right channel (audio B)

6 Jack for the voltage supply of 7 – 30 V (150 mA

at 12 V);

centre contact = positive pole;

required low voltage plug 5.5/2.1 mm (outside/

inside diameter)

7 Receiving antenna with 2.5 dB gain; do not

scratch

8 Control to correct the video level for the output (4);

the video level is set according to standard (1 Vpp)

and can be changed to 0.5 – 1.5 Vpp

9 Control to adjust the dwell time (1 – 5 s) of a re-

ceiving channel with activated switching mode

10 Rotary switch to adjust the receiving channel

Pos. Channel

0, 1 1

6 ... 9 1 + 5 (autom. switching mode)

A1+3+5 (autom. switching mode)

B...F 1

11 Green power LED

2 Safety Notes

This receiving module corresponds to the EC direc-

tive 89/336/EEC for electromagnetic compatibility.

●

The module is only suitable for indoor use. Protect

it against dripping water and splash water, high air

humidity, and excessive temperatures (admissible

ambient temperature range

10 °C up to +55 °C).

●

Only use a dry, soft cloth or a brush for cleaning,

never use chemicals or water.

●

If the module is used for purposes other than orig-

inally intended, if it is not correctly connected or

operated or not repaired in a qualified way, there is

no liability for possible damage.

●

If the module is to be put out of operation defini-

tively, it must be taken to a local recycling plant for

disposal which is not harmful to the environment.

3 Applications

The receiving module AVM-250R is especially de-

signed for the installation into a housing and serves

for wireless audio and video transmission in combina-

tion with a 2.4 GHz transmitter of the “AV-...” series of

MONACOR. For setting up a wireless video transmis-

sion system merely a video camera and a monitor are

additionally required.

4 Setting into Operation

4.1 Placing of transmitter and receiver

Practical experience has shown that an optimum

reception is achieved when placing the units at a

height of minimum 1.5 m to 2 m above the ground.

Prior to final mounting, a trial run is recommended as

the transmission quality can be substantially changed

by displacing the transmitter and the receiver by a few

centimetres only.

4.2 Connecting the units

Prior to connecting units, switch them off first. Always

connect the power supply for the receiving module

last of all units. Prior to changing existing connections

first switch off the power supply for the receiving

module and the connected units.

4.2.1 Surveillance monitor

1) Connect the video input of the monitor via a 75 Ω

coaxial cable to the yellow phono jack (4).

2) For audio transmission connect the audio input of

the monitor via a screened audio cable to the white

phono jack (5) and in case of stereo sound addi-

tionally to the red jack.

4.2.2 TV set

Instead of a monitor, a TV set can be connected as

well. Depending on the existing connection jacks at

the TV set an adapter may be required (e. g. VC-162

of MONACOR).

If no video and audio input is provided at the TV

set, the receiving module can be connected via an RF

modulator (e. g. VAM-3 of MONACOR) to the antenna

jack of the TVset.

4.2.3 Signal device or another additional unit

If the transmitter is equipped with a control channel, it

is possible to activate an optical or acoustical signal

device or another additional unit connected to the

AVM-250R (e. g. video recorder for automatic start of

a recording) via this channel. The connection is made

via the terminals (1 + 2) and is shown in fig. 2 where

the unit to be connected is symbolized by R1. Con-

nection wires with a cross section of 0.14 to 1 mm

may be used. Press the corresponding orange clip to

insert or pull out a wire. Strip the connection wires

approx. 10 mm.

ENGLISH

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Monacor VAM-3 Manuel d'utilisateur Page 8

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