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AV4x1P
Audio/Video Switchers
AV8x1P
AV8x1A
Manual Version 2.01
BURST ELECTRONICS INC
ALBUQUERQUE, NM 87109 USA
(505) 898-1455 VOICE
Made in USA
(505) 890-8926 TECH SUPPORT
(505) 898-0159 FAX
www.burstelectronics.com
Hardware, software and manual copyright by Burst Electronics. All rights reserved. No part
of this publication may be reproduced or distributed in any form or by any means without the
written permission of Burst Electronics.
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Passive and Active
Audio/Video Switches
This manual covers the operation of the Burst
Electronics Models AV4x1P, AV8x1P, and
AV8x1A. The AV4x1P is a 4 input passive audio/
video switcher. The AV8x1P is an 8 input passive
audio/video switcher. The AV8x1A is an 8 input
passive audio/video switcher with an amplified
audio output for use with stereo headphones,
mini monitor speakers, etc. Switching for all of
these products is accomplished by the use of a
mechanical pushbutton switch. Depress the
appropriate pushbutton switch to select the A/V
input. With the exception of the AV8x1A, all video
connectors are standard BNC type and all audio
connectors are standard RCA type. The AV8x1A
uses BNC and RCA connectors, but also includes
a 3.5mm stereo headphone jack and volume
control for the headphone output.
AV4x1P and AV8x1P
The video and audio selection is done by
pressing the appropriat e pushbutton switch. Both
audio and video selection are switched in an
audio follow video fashion.
Because of the passive design, the input and
output function may be interchanged. Example,
instead of four (or eight) inputs to one video
output, these units may be used for one A/V input
(connected to the Output connector) to be routed
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to any of the A/V outputs (connected to the
inputs).
AV8x1A with Audio Monitor Amp
This product operates the same as the AV4x1P
and AV8x1P with the exception of the headphone
jack output and the need for 12Vdc (used to
power the headphone audio amplifier). This
connector allows the user to monitor the audio by
the use of a standard 3.5mm plug stereo
headphone (not included), also a control knob is
installed on the front panel to allow the user to
adjust the volume level to the headphones. This
adjustment does not affect the volume of the
RCA audio outputs, it is just to allow a user to
monitor the audio passing through the AV8x1A.
Input Termination
The unselected video sources are terminated into
75 Ohm 1% loads. The unselected audio sources
are terminated into zero Ohm loads. This keeps
the audio crosstalk to a minimum. If termination is
not required, then the resistors may be cl ipped
from the printed circuit board. This will not
compromise the factory warranty.
Removing the Cover
AV4x1P: Remove the fron t panel by removing
both screws. Slide the top case off of the unit.
AV8x1P and AV8x1A: Remove one of the side
panels by removing all four screws. Slide the
bottom panel out of the enclosure.
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Removing Termination Resistors
AV4x1P: For Audio; clip zero Ohm resistor that
corresponds with the audio channel that must be
unterminated.
For Video; clip 75 Ohm 1% resistor that
corresponds to the video channel that must be
unterminated.
AV8x1P(A): For Audio; clip zero Ohm resistor
that corresponds with the audio channel that
must be unterminated.
For Video; clip 75 Ohm 1% resistor that
corresponds to the video channel that must be
unterminated.
Rack Mounts
Each of these switchers may be rack mounted.
Model Rack Kit Remarks
AV4x1P RM-3 Holds up to 3 units
RM-334 Holds up to 2 units
RM-344 Holds 1 unit
AV8x1P(A) RM-2-1 Mounts 1 unit
RM-2-2 Mounts 2 units side by
side
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Specifications
Video Connectors: BNC
Audio Connectors:
AV4x1P: RCA
AV8x1P: RCA
AV8x1A: RCA and 3.5mm stereo jack
Power: 12Vdc (AV8x1A only)
Size:
AV4x1P: 5.6W x 1.5H x 7.3D (inches)
AV8x1P: 8.3W x 1.75H x 6D (inches)
AV8x1A: 8.3W x 1.75H x 6D (inches)
Terminations:
Video: 75 Ohm 1%
Audio: 0 Ohm (wire jumper)
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