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ADDLESTONE BH184 Installation Manual

Video launch amplifier / vda unit

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TYPE BH184
VIDEO LAUNCH AMPLIFIER / VDA UNIT
Installation Guide
CAUTION
 Protect unit and power supply from rain / excessive moisture.
 Do not use the 12V power supply if its casing has been damaged.
APPLICATION
The BH184 unit combines a Video Launch Amplifier and Video Distribution Amplifier in one
unit. Installed at the camera it will function as a Launch Amplifier to improve picture quality
and increase transmission distances. Used at the control room end of the cable run it will
function as a Distribution Amplifier, splitting the video signal into two identical outputs with no
loss of signal strength or quality.
PACKAGE CONTENTS
When you open the packaging you should find the following:
1 x BH184 unit
1 x Type BH98 12V DC Regulated Power Supply
1 x Installation Guide
CARE AND MAINTENANCE
Following installation the BH184 unit should require little or no maintenance.
If required clean unit using damp cloth with a little mild detergent (having first disconnected
the power supply). The coax signal cables may be fitted or removed without disconnecting
the power supply.
END OF LIFE DISPOSAL
When this product eventually reaches the end of its working life it needs to be disposed of
correctly to prevent damage to the environment. It should not be disposed of with general
household type waste.
If you phone WeeeCare plc on 0844 800 2004 and quote our Account Number 135027 they
will arrange collection of this product from you. They will then correctly dispose of the unit
and recover any materials that may be recycled and reused. There will be no charge to you
for this service.

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Summary of Contents for ADDLESTONE BH184

  • Page 1  Do not use the 12V power supply if its casing has been damaged. APPLICATION The BH184 unit combines a Video Launch Amplifier and Video Distribution Amplifier in one unit. Installed at the camera it will function as a Launch Amplifier to improve picture quality and increase transmission distances.
  • Page 2 (For clarity only one camera run is shown) ADJUSTMENT The BH184 unit is adjusted in the factory for Unity output so that an input signal of 1.0 Volt peak to peak @75R will give an output signal of 1.0 Volt peak to peak @75R. For medium / long cable runs it will be necessary to increase the output signal level.
  • Page 3 TO DRIVE TWO MONITORS ADJUSTMENT The BH184 unit is adjusted in the factory for Unity. An input signal of 1.0V peak to peak @ 75R will give an output signal of 1.0V peak to peak @75R. If the monitors or other items of signal receiving equipment are some distance from the BH184 unit it will probably help to increase the signal output of the BH184 unit.
  • Page 4 Two BNC type coax connectors SURGE PROTECTION Transorbs fitted as standard (gas tubes optional for extra protection) POWER 12V DC for BH184 unit. 230V AC for type BH98 power REQUIREMENTS supply POWER CONSUMPTION The BH184 unit requires 0.2W OPERATING TEMP.