JVC GM-F520S, GM-F470S, GM-F420S specifications Using the serial communication

Using the serial communication

You can control the monitor from external control equipment (a personal computer or a dedicated controller) via the RS-485 or RS-232C terminal.

<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 RS-232C		Data Bits:	8 bits
	connector (male for the monitor,	See below.	Parity:	No parity
	female for the external control		Stop Bits:	1 bit
	equipment)		Flow Control:	No control
			Communication Code: ASCII Code

<Command outline>

When the monitor is turned on, the external control is not ready.

To start communication, send the connection command from the external control equipment.

To terminate the communication, send the termination command from the external control equipment.

Example of communication procedures:

<Basic command list>

No.

Commands

Functions

Data

1*

!

*

*

B

C

N

1

Cr

Starts communication (connection)

No data

2*

!

*

*

B

C

N

0

Cr

Terminates communication

No data

(termination)

3

!

*

*

B

I

D

S

E

T

x

x

Cr

Assigns the control ID

01 – 25

4

!

*

*

B

I

D

R

E

T

Cr

Initializes the control ID

No data

5

!

*

*

B

I

D

D

S

P

x

x

Cr

Displays/hides the ID

00: Hide, 01: Display

6

!

*

*

B

I

D

C

H

K

x

x

Cr

Flashes/hides the selected ID No. of

00: Hide, 01: Flash

the monitor

7

!

*

*

B

M

E

N

U Cr

Displays the MAIN MENU/Quits the

No data

menu operation

8

!

*

*

B

U

P Cr

Moves the cursor upward (5)

No data

9

!

*

*

B

D

O W

N Cr

Moves the cursor downward (∞)

No data

10

!

*

*

B

A

D

J

R

Cr

Makes setting/adjustment (3)

No data

11

!

*

*

B

A

D

J

L

Cr

Makes setting/adjustment (2)

No data

12

!

*

*

B

E

N

T

E

R Cr

Enters the password for the Security

No data

Lock

13

!

*

*

B

S

E

T

U

P Cr

Displays the SET-UP MENU

No data

14*

!

*

*

B

P

W

1

Cr

Turns on the monitor

No data

15

!

B

P

W

0

Cr

Turns off the monitor

No data

External control

equipment

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

2 Monitor’s status (@00BOKCr) Monitor

3Selecting the Input VIDEO (!00BINACr)

4 Monitor’s status (@00BOKCr)

5Terminating the communication: termination

command (!00BCN0Cr)

6 Monitor’s status (@00BOKCr)

*

*

16

!

*

*

B

I

N

A Cr

Selects Input VIDEO

No data

17

!

*

*

B

I

N

B Cr

Selects Input RGB

No data

18

!

*

*

B

I

N

C Cr

Selects Input DVI

No data

19

!

*

*

B

D

I

S

P

Cr

Displays the status

No data

20

!

*

*

B

V P L S Cr

Turns the volume up

No data

21

!

*

*

B V M N S Cr

Turns the volume down

No data

22

!

*

*

B

V

O

L

x

x

Cr

Adjusts the volume

0 – 30

23

!

*

*

B

A

M

U

T

E

x x Cr

Turns muting on/off

00: Off, 01: On

00: REGULAR,

01: FULL,

24

!

*

*

B

A

S

P

x

x

Cr

Selects the aspect ratio

02: ZOOM,

03: PANORAMIC,

•Commands starting with “!” are operation commands from the external control equipment. For details, see <Basic command list> on the right.

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

<Specifications of the RS-485 terminal>					<Specifications of the RS-232C terminal>
		Pin	IN terminal	OUT terminal		Pin No.	Signal
		No.	signal	signal		1	—
		1	TXD +	TXD +
						2	RD (Receive Data)
		2	TXD –	TXD –		3	TD (Transmit Data)
This is a		3	RXD +	RXD +	This is a	4	—
		4	NC	NC
						5	GND (Ground)
					female
female		5	NC	IR. OUT
						6	—
					terminal.
terminal.
		6	RXD –	RXD –
						7	RTS
		7	5 V power	NC
						8	CTS
		8	GND	GND
						9	—
• The 5 V power supply of the 7th terminal is for the					• The 7th terminal and the 8th terminal are
	dedicated controller. Do not use it for other devices.				connected.

04: REAL DOT

25

!

*

*

B

A

S

P

T

Cr

Changes the aspect ratio

No data

00: DYNAMIC,

26

!

*

*

B

P

I

C

M

O

D x

x Cr Selects the picture mode

01: NORMAL,

02: USER

27

!

*

*

B

P

I

P

x

x

Cr

Turns on/off the PIP mode

00: Off, 1: On

28

!

*

*

B

P

B

P

x

x

Cr

Turns on/off the PBP mode

00: Off, 1: On

* These commands can be used while the monitor is on standby.

•“**” substitutes the ID number of the monitor. The initial setting is “00.” When 2 or more monitors are connected and controlled, the commands for the ID “00” controls all the monitors.

•Enter the appropriate data to “xx” or “x.”

•“Cr” is 0Dh.

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