Toshiba KV-HD01A - Manual (Page 42)

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APPENDIX 1. -- RS-232 Protocol
1.Setup
1.1 Use Null Modem cable (The standard RS-232 9 Pin Cable with Pin 2 and Pin 3 exchanged, see
pin configuration chart below for details) to connect the COM 1 on the rear panel of the unit to a PC.
1
2
3
4
5
6
7
8
9
RS-232
1
2
3
4
5
6
7
8
9
RS-232
RX
TX
GND
RTS
CTS
RX
TX
GND
RTS
CTS
1.2 Set the RS-232 option to SLAVE in the COMMUNICATION page of the main menu.
1.3 Set communication parameters: 9600 bps, No Parity, 8 Data Bits, 1 Stop Bit.
2. Communication Protocol:
2.0 General Command Format
,
, ..,}
Lead Code = 0x41
Main Category = 0x01 Keys and Signals
= 0x02 Command
Second Category = 0x01 Handshake
= 0x02 Request Time/Set Time
= 0x05 Request System State
End Code = 0x4f
The different command types and their corresponding parameters are as follows: