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Section4 Details of each Command

4.1 Commands Transmitted from the External Device (Computer) to the AR-3000

The following 5 types of command are transmitted from the external device to the AR-3000. “External” in these explanations refers to the computer. “AR” refers to the AR-3000.

1) Control (execute) commands

These command signals cause the AR-3000 to operate; e.g., playback or record. The player functions use mostly these commands.

2) Editing commands

To prevent accidental erasure of data, edit commands are executed after entering Delete mode. Commands are executed using the following procedure.

1. External

to

AR

The DM command is sent, and the AR-3000 enters Delete mode.

2.

AR

to

External

When the command is received correctly, an ACK is returned.

 

 

 

 

 

If the command is not correct, an error code is returned, and Delete

 

 

 

 

 

mode is automatically exited.

 

 

 

 

 

* When no command is received for two minutes, the Delete mode is

 

 

 

 

 

automatically exited.

3.

External

to

AR

If no error has occurred, transmit the command to be executed.

4.

AR

to

External

The command transmitted in step 3 will be re-transmitted for

 

 

 

 

 

confirmation.

5. External

to

AR

If the command is correct, transmit an ACK command.

 

 

 

 

 

The command will be executed, and Delete mode will be exited

 

 

 

 

 

automatically. If the command is an error, transmit an ER command

 

 

 

 

 

“ER:1;”. Delete mode will be exited automatically.

Commands valid when in Delete mode

 

 

External to AR

 

 

CD

: Delete Card

CP

: Copy Card

CO

: Convert Card

FM

: Format Card

LS

: Recorded phrase protect mode

LW

: Recorded phrase protect mode

SP

: System copy

PC

: Copy Phrase

PD

: Delete Phrase

RC

: Convert recording type

PT

: Delete the silent portions (Truncate)

 

 

PV

: Divide Phrase

 

 

PM

: Combine phrase

TS

: Time Stretch

RC

: RDAC-Mode Convert

PI

: Seek and set playback points at the

 

 

 

locations of silent portions

In Delete mode, when a command other than an Edit command is received by the AR-3000, it will automatically exit Delete mode, and execute that command. If the AR-3000 receives an Edit command when not in Delete mode, it will transmit an ER command, and ignore the Edit command that was received.

AR-3000 RS-232C Reference -6