Avocation-systems CA-4 Uživatelský manuál stáhnout pdf (Strana 2)

Serial Connections

The CA-4 can be controlled via RS-232 or RS-485.

The RS-232 port is the 9-pin D-Sub connector.

RS-485 is connected to the - (A) and + (B) positions on the terminal block.

Baud rate is adjustable from 1200 to 115200 baud 8 bits, no parity and 1

stop bit.

1 2 3 4

Teach

RS-232

Conﬁrm

+VGndS+

VGA-4HD

Automatic/Manual

VGA Selector

Baud

Auto

Term

Transmit

Receive

Ground

1 2 3 4

Teach

RS-232

Conﬁrm

+VGndS+

VGA-4HD

Automatic/Manual

VGA Selector

Baud

Auto

Term

RS-485

1200 baud 2400 baud 4800 baud 9600 baud 19200 baud 38400 baud 57600 baud 115200 baud

Serial Commands

The following is a master list of commands the CA-4 will recognize. Each will be described in detail in the following pages.

Please see the notes at the end of the list for a description of the variables in each command.

Switching Command

ASiBn<CR>

Select an input AS0B2<CR>

i = Unit ID 0-7 Selects input 2

n = Input to select 1-4

Response: ASi-A/V input = n<CR>”

Status Command

ASiSn<CR>

Request current status of unit AS0S<CR>

i = Unit ID 0-7 Request status

Response: ASi-A/V input = n<CR>”

10956 Ammons St.

Westminster, CO 80021

Ph: 303-410-6639 l 1-877-805-6639

www.avocationsystems.com

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