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1. Se rial communications Basics
returned data = Data[0]....Data[3]
value = Data[0]*2563+ Data[1]*2562+ Data[2]*256 + Data[3].
1.3 Communication settingsBaud rate
Defines the speed of the data transfer. The baud rate can be set using the menu structure.
Consult the Owner’smanual of the projector on how to change the baud rate setting.
Data Bits
Eight data bits are used for each character of the data transfer.
Parity
There is no parity bit used to perform error checking.
Stop Bits
One stop bit is used to define the end of a character.
1.4 HardwareOverview
• Female D9–pin connector labelled “RS232 IN” used to connect the projector with the computer.
Pin out of the D9 connector:
Pin Name Full Name
1CD Carrier Detect
2RxD Received Data
3TxD Transmitted Data
4DTR Data TerminalReady
5GND Signal Ground
6DSR Data Set Ready
7RTS Request ToSend
8CTS Clear ToSend
9RI Ring Indicator
• Standard serial Cable
- order number R9827560 (cable length = 15m )
- order number R9827570 (cable length = 30m )
R5976884 RLM SERIES 04/04/2006 7