Panasonic AJ-D250P External interface specifications, Sending format computer VTR, $ Data format

Odata

RS-232C

2. Software specifications

(1) External interface specifications

Communication	Asynchronous system, full duplex
system
Baud rate	1200, 2400, 4800, 9600 or 19200 bps
Bit length	8 bits or 7 bits
Stop bit	1 bit or 2 bits
Parity	None, odd or even

<Notes>

OThe factory settings are 9600 bps, 8 bits, 1 stop bit and none as the parity.

OThe unit has a 127-byte receive buffer.

(2) Sending format (computer VTR)

$Data format

[STX]	[discrimination]	[:]	[data]			[ETX]
02H	XX XX XX	3AH	XX	.....	XX	03H

20H<XX<7FH (XX= HEX character code)

Odiscrimination : Command identifier (3 bytes)

O :: Code representing a delimiter between the command and data.

: The data code is added as required.

1.All send commands must start with STX (character code 02H).

Next comes the discrimination, which identifies the command.

If required, the data is added following the colon. At the very end comes ETX (character code 03H).

2.When STX is re-sent before ETX is sent, the receive buffer inside the VTR is cleared (all the data received so far will be destroyed), and the data is processed anew with the STX which was received again at the head.

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