Cable Connection - NEC MultiSync LT140 User Manual

Cable Connection

Communication Protocol
Baud rate:
Data length:
Parity:
Stop bit:
X on/off:
Communications
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:
Receiving failure:
Err 01:
Err 02:
Err 03:
Err 04:
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
9600 bps
8 bits
No parity
One bit
None
Full duplex
C5
CA Err
Command Error (command not supported)
Checksum Error
Busy (command not acceptable)
Parameter Error ( parameter data abnormal)
PC Control Connector (DIN-8P)
8
5
2
To GND of PC
E–43
To RxD of PC
6
7
4 3
1
To TxD of PC