Scientel AVS-01, Operation Manual

AVS-01  

A

UDIO

/V

IDEO 

S

ELECTOR

December 14, 2001

VERSION 1.0

 2 

JUMPER CONFIGURATION 

OPERATION WITH EXTERNAL DRY CONTACTS (RELAY CLOSUR

E)

 
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)