Elmo HV-3000XG RS-232C connector specifications DSUB-9P, Data format specifications, Presenter

RS-232C connector specifications (DSUB-9P)

Pin No.	Code	Name	Direction of data
			Presenter	PC
1	CD	Carrier Detect
2	RXD	Received Data
3	TXD	Transmitted Data
4	DTR	Data Terminal Ready
5	SG	Signal Ground
6	DSR	Data Set Ready
7	RTS	Request To Send
8	CTS	Clear To Send

Data format specifications

This command is executed in the form of 1-command/1 packet. The next command is not accepted until the previous processing is completed.

•The communication command always starts with STX (Start of Text) [02H], and ends with ETX (End of Text) [03H].

•If the communication format or command name is wrong, NAK (Negative Acknowledgement) [15H] will be sent from the Presenter as a result of failing to receive correctly.

•When the communication format is correctly received, the Presenter sends ACK (Normal Acknowledgement) [06H].

Transmission Command (PC Presenter)

Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as follows:

	S
(PC)	T
	X

Command

Parameter

Data

E T X

	[02H]
(Presenter)	ACK

[06H]

[03H]

All response data are sent in ASCII code in correspondence to the parameters on the table of the communication commands.

• Status request format (Parameter 0)

	S	Lighting	Input		Color	Pointer			Local	E
(Presenter)	T			30H			30H	Pause		T
		selection	selection		/B&W	display			Lock out
	X									X

• Status request format (Parameter 2)

(Presenter)

• ROM version

S T X

30H

Gamma selection

30H

Aparture selection

30H

30H

30H

30H

E T X

(Presenter)

S T X

V

56H

H

48H

E

45H

H

H

H

E T X

Version

25