LIMITED WARRANTY
Comlab Telecommunications Inc. warrants all its products to be free from any defect in manufacture for a period of one
year after delivery to the original purchaser. All warranty returns must be authorized by a Comlab representative.
The limitation of liability under this warranty shall be to repair or replace any part of the product which proves to be
defective after inspection by Comlab. This warranty shall not apply to any Comlab product that has been disassembled,
modified, physically or electrically damaged, inappropriately installed, or any product that has been subjected to the
conditions exceeding the applicable specifications or ratings.
Comlab Telecommunications Inc. assumes no liability for any direct, indirect or consequential injury, loss, economic
loss, damage, fines or penalties incurred through the use, or inability to use Comlab products.
Comlab reserves the right to make design changes to its products without incurring any obligation to make the same
changes to previously purchased units.
This warranty is the full extent of obligation and liability assumed by Comlab with respect to its products. Comlab
neither makes nor authorizes any person or company to make any other guarantee or warranty concerning its
products.
Copyright © 1996 and 2001 by Comlab inc.
All rights of translation, adaptation and reproduction by any means reserved for all countries. The contents of this
manual may not be reproduced or transmitted in any form, in whole or in part, without written permission from Comlab.
AVS-01
AUDIO/VIDEO SELECTOR
December 14, 2001 VERSION 1.0 1
DESCRIPTION
The AVS-01 Audio/Video selector is a unit that can be used with the M•A•C Monitoring
System, with the DAPD-01 and DVPD-01 Audio and Video presence detectors or in
standalone mode to switch from different audio and video sources.
The AVS-01 includes two audio selectors and one video selector. Each selector can be
controlled individually or all three of them can be tied together. A manual override is also
available for each selector.
To use the AVS-01 with an external dry contact, follow the instructions given in section 2.
To use it with an external voltage to control the selectors, follow the instructions in section
3.
CURRENT CONSUMPTION
The AVS-01 requires +12 V regulated supply. The current consumption is as follows:
+12 V = 120 mA
AVS-01
AUDIO/VIDEO SELECTOR
December 14, 2001 VERSION 1.0 2
JUMPER CONFIGURATION
OPERATION WITH EXTERNAL DRY CONTACTS (RELAY CLOSURE)
To control each or all selectors from a dry contact closure, configure the jumpers based on the information
below:
JMP 1 Enables pull-up resistor on Audio 1 Control Input. (Factory default)
JMP 2 Enables pull-up resistor on Audio 2 Control Input. (Factory default)
JMP 3 Enables pull-up resistor on Video Control Input. (Factory default)
JMP 4 Attaches the Control Input common with the DC ground. (Factory
default)
JMP 9-10 When installed close to U2, they set proper logic level for operation of
Audio input 1 with external dry contacts. (Factory default)
JMP 7-8 When installed close to U2, they set proper logic level for operation of
Audio input 2 with external dry contacts. (Factory default)
JMP 5-6 When installed close to U2, they set proper logic level for operation of
Video input with external dry contacts. (Factory default)
JMP 11 Attaches the Video ground to the DC Ground. (Factory default)
JMP A,B,C Tie the 3 switchers together. (Factory default). Any one input will
operate all switchers. To break one or all switchers simply open the
corresponding jumper. (A for Audio 1, B for audio 2, C for Video)
AVS-01
AUDIO/VIDEO SELECTOR
December 14, 2001 VERSION 1.0 3
OPERATION WITH EXTERNAL DC VOLTAGE (UP TO 24 VOLTS)
To control each or all selectors from a DC voltage, configure the jumpers based on the information
below:
JMP 1 Off
JMP 2 Off
JMP 3 Off
JMP 4 Off. (Becomes the External Ground and provides the opto-coupler
isolation)
JMP 9-10 When installed away from U2, they set proper logic level for operation
of Audio Input 1 with external DC Voltage.
JMP 7-8 When installed away from U2, they set proper logic level for operation
of Audio Input 2 with external DC Voltage.
JMP 5-6 When installed away from U2, they set proper logic level for operation
of Video Input with external DC Voltage.
JMP 11 Attaches the Video Ground to the DC Ground. (Factory default)
JMP A,B,C Tie the 3 switchers together. (Factory default). Any one input will
operate all switchers. To break one or all switchers simply open the
corresponding jumper. (A for Audio 1, B for audio 2, C for Video)
BACKPLANE CONNECTOR PINOUT
BOTTOM WEIDMULLER (16 positions)
1 Audio 1 IN A+
2
Audio 1 IN A -
3 Audio 1 IN B+
4 Audio 1 IN B -
5 Audio 1 OUT +
6 Audio 1 OUT -
7 Audio 2 IN A +
8
Audio 2 IN A -
9 Audio 2 IN B +
10 Audio 2 IN B -
11 Audio 2 OUT +
12 Audio 2 OUT -
13 Control input audio 1
14 Control input audio 2
15 Control input common or External ground (if external control is DC)
16 +12vdc
17 GND
TOP WEIDMULLER (2 positions)
1
Control input video
2 Control input ground or External ground (if external control is DC)
BNC connectors
IN A Video Input A
IN B Video Input B
OUT Video Output
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
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