NEC MT830 user manual Cable Connection Communication Protocol, PC Control Connector DIN-8P, E-46

Models: MT830

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Cable Connection

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 LCD 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: Either filter panel or lamp cover is not attached correctly

Bit 1: Fan stoppage

Bit 2: Overheated

Bit 3: Lamp lighting failure

PC Control Connector (DIN-8P)

To RxD of PC

 

8

7

6

 

 

 

5

 

4

3

2

1

To GND of PC

To TxD of PC

E-46

Page 47
Image 47
NEC MT830 user manual Cable Connection Communication Protocol, PC Control Connector DIN-8P, E-46