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.
=
= 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
: Unit is in standby.
= 1b
: Unit is not in standby.
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