JVC DT-V24L1D, DT-V20L1D specifications Using the serial communication

Operation

1 Set “PARALLEL TYPE” of “REMOTE SETTING” to “MAKE” or “TRIGGER” in the set-up menu.

2 Short-circuit the 7th pin terminal (external control) to the 8th pin terminal (GND) so that the monitor can be controlled by the external control.

3 When selecting “MAKE” (make contact) system: Operate each function by short-circuiting the corresponding pin terminal to the 8th pin terminal (GND) or opening it.

When selecting “TRIGGER” system: Operate each function by pulse control, that is short-circuiting the corresponding pin terminal to the 8th pin terminal (GND) for about 1 second and opening it.

NOTE

•When changing the input with MAKE (make contact) system, only one pin terminal must be short-circuited. (Other pin terminals must be opened.)

•When selecting the “TRIGGER” system, you can operate only one function at a time. Operate the functions one by one.

7Using the serial communication

You can control the monitor from a personal computer etc. via RS-485 or RS-232C terminal.

• Consult your dealer if you want to know the detail of the external control specification.

<Communication specifications>

Input terminal	Cable	Terminal	Communication specifications
		specification
RS-485	A straight LAN cable		Baud Rate	: 4800 bps
RS-232C	A straight cable with a D-sub 9-pin		Data Bits	: 8 bits
			Parity	: No parity
	connector (male for the monitor,	☞ the right
			Stop Bits	: 1 bit
	female for the personal computer
			Flow Control	: No control
	etc.)
			Communication Code	: ASCII Code

<Command outline>

•To start communication, send the connection command from the personal computer etc.

•To terminate the communication, send the termination command from the personal computer etc.

Example of communication procedures

1Starting the communication: connection command (!00BCN1Cr)

2 Monitor’s status (@00BOKCr) Monitor

3Selecting “SDI 1” input (!00BINACr)

Personal computer	4 Monitor’s status (@00BOKCr)
etc.

5Terminating the communication: termination command (!00BCN0Cr)

6Monitor’s status (@00BOKCr)

•Commands starting with “!” are operation commands from the personal computer etc. For details, see <Command list> on the right.

•Character strings starting with “@” are status returns from the monitor.

<Command list>

Type

No.

Commands

Functions

Data

1*1

!

*

**2

B

C

N

1

Cr

Starts communication (connection)

No data

2*1

!

*

**2

B

C

N

0

Cr

Terminates communication (termination)

No data

3

!

*

**2

B

I

D

S

E

T

x

x*3 Cr

Assigns the control ID

01 – 99

4

!

*

**2

B

I

D

R

E

T

Cr

Initializes the control ID

No data

5

!

*

**2

B

I

D

D

S

P

x

x*3 Cr

Displays/hides the ID

00: Hide

01: Display

6

!

* **2 B I

D

C

H

K x

x*3 Cr

Flashes/hides the selected ID No. of the

00: Hide

monitor

01: Display

7

!

*

**2

B

M

E

N

U

Cr

Displays the main menu/Quits the menu

No data

operation

commands

8

!

*

**2

B

U

P

Cr

Moves the cursor upward (

)

No data

11

!

*

**2

B

A

D

J

L

Cr

Makes setting/adjustment (

)

No data

9

!

*

**2

B

D

O

W

N

Cr

Moves the cursor downward ( )

No data

10

!

*

**2

B

A

D

J

R

Cr

Makes setting/adjustment (

)

No data

Basic

13*1

!

*

**2

B

P

W

1

Cr

P

Cr

Turns on the monitor

No data

12

!

*

**2

B

S

E

T

U

Displays the set-up menu

No data

14

!

*

**2

B

P

W

0

Cr

Turns off the monitor (standby)

No data

15*4

!

*

**2

B

I

N

A

Cr

Selects “SDI 1” input

No data

16*4

!

*

**2

B

I

N

B

Cr

Selects “SDI 2” input

No data

17

!

*

**2

B

I

N

C

Cr

Selects “DVI” input

No data

18

!

*

**2

B

I

N

D

Cr

Selects “COMPO. / RGB” input

No data

19

!

*

**2

B

I

N

E

Cr

Selects “VIDEO 1” input

No data

20

!

*

**2

B

I

N

F

Cr

Selects “VIDEO 2” input

No data

21

!

*

**2

B

D

I

S

P

Cr

Displays the status*5

No data

22

!

*

**2

B

A

M

U

T

E

x

x*3 Cr

Turns muting on/off

00: Off, 01: On

23

!

*

**2

B

A

S

P

x

x*3 Cr

Changes the aspect ratio

00: 4:3, 01: 16:9

• “Cr” is 0Dh.

*1 These commands can be used while the monitor is off (standby). *2 “**” is monitor’s ID. Normally, set to “00.”

*3 Enter the appropriate data to “xx”.

*4 These commands are available for only DT-V24L1D and DT-V20L1D.

*5 Displays the information shown when INPUT SELECT button of the current input is pressed (☞ “About the Status Display” on page 7). While controlling with MAKE (make contact) system, the information is displayed only at the moment of short-circuiting.

<Specifications of RS-485 terminal>				<Specifications of RS-232C terminal>
	Pin No.	IN terminal	OUT terminal		Pin No.	Signal
		signal	signal		1	NC
	1	TXD +	TXD +
					2	RXD
	2	TXD –	TXD –
					3	TXD
	3	RXD +	RXD +
This is a female				This is a female	4	NC
terminal.	4	NC	NC	terminal.	5	GND
	5	NC	NC
					6	NC
		RXD –	RXD –
	6				7	RTS
	7	NC	NC		8	CTS
	8	GND	GND		9	NC

• The 7th terminal and the 8th terminal are connected.

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