Tascam AV-452 User Manual download pdf

AV-452

Serial Control Specification

7733 Telegraph Road • Montebello, CA 90640 • (323) 726-0303 • http://www.tascamcontractor.com

All features and specifications are subject to change without notice. Contact your local TASCAM representative for the latest information.

Page 1 of 8

AV-452_RS-232_spec.pdf

031104

• Channel Mute or Dim Command & Status

• Complete AV Routing Command & Status

• Amp A and B In/Out Command & Status

• Intercom and Cascade Command & Status

• Room Volume Up/Down Commands

• "Query All Status" Macro Command

• Dip Switch Setting and EMG Circuit Status

• Uses RS-232, RS-422, or RS-485 Protocol

• Assignable Address for RS-485

• Generates Status Commands on State Changes

• Command to Program Outbound IR Strings

(For this feature, see AV-452_IR_PRG.pdf)

SERIAL IMPLEMENTATION OVERVIEW

SERIAL ROTARY DIAL SETTING AND CABLE PIN-OUT

TASCAM's AV-452 has a serial port capable of

operating in standard RS-232, RS-422 or RS-485

protocols which offers access to most switches and

indicator status on the AV-452. The AV-452 saves

resources on recursive scanning with a "query all"

command and by generating status replies on status

changes. An additional RS-232 command allows IR

strings to be learned for projector control, outlined

separately in: AV-452_IR_PRG.pdf.

Settings and Voltages

Note: The rotary control and most dip switches are only

scanned at power-up. You will need to turn the AV-452 off

and back on for any changes to take effect.

Under the security panel, there is a rotary dial that

determines the machine ID (address). This allows multiple

AV-452 machines to be connected to a single serial line and

still be addressed individually. If you are not using multiple

machines, this should probably be set to "1".

The RS-422 and RS-485 operation follows normal

specifications. However, RS-232 operation is a modification

of the RS-422 port. It operates at 0-4.5V, rather than ±9V.

This will operate normally with most equipment, such as old

control systems or PC computers. If you have trouble with

RS-232, try switching to RS-422 if you can to see if that

solves the problem.

Cable Pin-Out, and Control System Settings

Connector shown from perspective of the rear panel female

connector. The male connector for your cable will be the

mirror image of this diagram.

Connector:

Port Speed:

Command Spacing:

Character Length:

Parity:

Female DB9

9600 bps

>25msec

8 bit

None

12345

6789

GND Rx-

Tx-

Pin 2:

Pin 3:

Pin 5:

Rx-Data

Tx- Data

Ground

RS-232:

GND Rx-

Tx-

Rx+

Tx+

Pin 2:

Pin 3:

Pin 5:

Pin 6:

Pin 7:

Rx-Data

Tx- Data

Ground

Rx+ Data

Tx+ Data

RS-422:

GND

TxRx-

TxRx+

Pin 2:

Pin 3:

Pin 5:

Pin 6:

Pin 7:

TxRx-Data

Ground

TxRx+ Data

RS-485:

REAR PANEL MACHINE ID

ROTARY ENCODER

100W/ch @ 8Ω

160W/ch @ 4Ω

SW FUNCTION FUNCTION

UP DN

EXC

LEARN IR

CASCADE

SPK OUT

MIC HPF

INT GATE

AV DUCK

AV DUCKER LINE

OUTPUT

MIC GRP

INSERT

LINE OUTPUT MEETING DVD VCR CD-RW CASSETTE RS-232

RELAY

CONTROL

PHANTOM

POWER

MIC4 MIC3 MIC2 MIC1

GND - +GND - + GND - + GND

MIC1MIC2MIC3MIC4

- +

OFF ON

ST MONO

LEVEL

INTERCOM

(-) 12VEMG IN GND 24V 70V

RATIO THRESH

GATE

THRESH

SPEAKER

OUTPUT

POWER RGB2 THRU IN

VCR MONITOR

OUT

CASCADE INPUT

R L R

OUT

IN OUTIN OUTININ OUTOUT

DVD

B A

CV IN

EMG

SERIAL

ADDRESS

CUSTOMIZE

SUM

OFFON OFFON

OFFON

MON

UP DN

SERIAL

ADDRESS

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Serial Control Specification

AV-452Serial Control Specification 7733 Telegraph Road • Montebello, CA 90640 • (323) 726-0303 • htt

Page 2 - COMMAND STRUCTURE