7I/O DESCRIPTION

7.1About I/O

The I/O connector controls input and output of signal, and it includes 1 I/O input terminal, 1 I/O output terminal and 1 RS-232 converter or half duplex RS-485 port.

Port description:

Port

Name

Description

1

AGND

analog ground

2

485B/RXD

 

3

485A/TXD

 

4

DGND

digital ground

5

+12V

max. output current:100mA

6

I/O-OUT

 

7

I/O-IN

 

8

hold

hold

Notes: the current(+12V) output to the peripheral equipment should not exceed 100mA, otherwise the overloading is possible to damage the AV adapter and inner components.

7.2 Example about I/O

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Sierra VSP 3001 manual About I/O, Example about I/O