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Rs-232 protocol and control details - rev. 2, Rs-232 interface, Bel canto – player-1(a) – Bel Canto Design PL-1 User Manual

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bel canto – PLayer-1(A)

RS-232 Protocol and Control Details - Rev. 2


Configuration - The following settings should be used for RS-232 transmission:

Baud Rate – RS-232 baud rate is configured using jumpers on the internal RS-232
interface located on the upper 480p board or on the separate RS232 board.
Available settings are 2400, 4800, 9600 and *19200. *Factory default is 19200.

Baud Rate

Jumper 1

Jumper 2

2400 Jumped

Jumped

4800 Open

Jumped

9600 Jumped Open

19200 Open Open


Data Bits – Eight (8) data bits.
Stop Bits – One (1) stop bit.
Parity – No parity checking.
Flow Control – None.

RS-232 Interface –

Commands are to be sent to the unit via RS-232 using the following format:
Arguments 1 through 3 are in decimal format.
=


= = HEX or <202><254> = DECIMAL

=
=
=
=

= 0 – 255


EXAMPLE OF DECIMAL COMMAND:
To send the command “Play”, send <202><254><3><1><0><0>
Note: Command 1 and 2 are for IR Equivalents only. Direct Commands are # 3 and higher.
Any invalid command received via RS232 is ignored and will not affect normal operation.

Status Byte –

Upon receiving the command “Poll Status” command [CAh FEh 09h 00h 00h 00h], a
single status byte will be transmitted. The format for the status byte is:

=

= 0b

: Reserved

= 000b

: Reserved

=

001b

:

Reserved

=

010b

:

Reserved

=

011b

:

Reserved

=

100-111

:

Reserved


= 0b

: Unit is in standby.

= 1b

: Unit is not in standby.





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