E–43
Cable Connection
Communication Protocol
Baud rate:
9600 bps
Data length:
8 bits
Parity:
No parity
Stop bit:
One bit
X on/off:
None
Communications
Full duplex
procedure:
If the CPU of the projector has received the data correctly, it returns an ACK(C5H). If the received data is not correct, the CPU returns
a NAK(CAH), then the following status:
Receiving success:
C5
Receiving failure:
CA Err
Err 01:
Command Error (command not supported)
Err 02:
Checksum Error
Err 03:
Busy (command not acceptable)
Err 04:
Parameter Error ( parameter data abnormal)
Note: If failing in powering-on, the CPU returns the following
NAKs:
CA Err 1
Err 1 8X (Apply the corresponding bit.)
Bit 0: Lamp cover is not attached correctly
Bit 1: Fan stoppage
Bit 2: Overheated
Bit 3: Lamp lighting failure
1
2
5
4
3
6
7
8
To RxD of PC
©
PC Control Connector (DIN-8P)
To TxD of PC
§
To GND of PC
©
