Sima VS-712 EX User Manual download pdf (Page 18)

Page 18

SVS-CONTROL Interface

The SVS-CONTROL interface on the VS-712EX lets you connect the unit to a home automation system and control the

various functions of the unit.

SVS-CONTROL Connection

The specifications of the SVS-CONTROL port are:

9600 baud

1 start, 8 bits, no parity

no handshaking

DB-15, female connector

Here is the pin out of the SVS-CONTROL port on the VS-712EX

Pin Function

1 Ground

3 Transmit

4 Receive

RS232 Command Structure

RS232 commands sent to the VS-712 consist of five bytes: a start character, an address character, a command mode

character, a sub-command character and a command data byte. There is no need to send a carriage return or line feed at

the end of the message. If these characters are sent, they will be ignored. The received message structure is summarized

in the following table:

Start

Character

Address Command Sub-Command Data

S = Standby

A = Auto Select

L = Loop protect

R = Record follows play

P = Front Panel Switches

S = Setup

D = LED Dimmer

0 = Off

1 = On

1 – 7 = Channel selection

Any (next LED brightness step -

decreasing)

V = View

R = Record

E = Every signal

1 – 7 = Channel selection

C = Compander C = Compander 0 = Off

1 = On

U = Compander UP

D = Compander Down

? = Status Request Any Any

@ 0

D = Diagnostics D = Diagnostics 0 = Off

1 = On

Note that not all command / sub-command / data combinations are valid. See section 7.4 for a summary of all valid

commands.

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Sima VS-712 EX User Manual Page 18

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