JVC DT-V20L1D Computer Monitor User Manual


 
15
7 Using 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
specification
Communication specifications
RS-485 A straight LAN cable
the right
Baud Rate : 4800 bps
Data Bits : 8 bits
Parity : No parity
Stop Bits : 1 bit
Flow Control : No control
Communication Code : ASCII Code
RS-232C A straight cable with a D-sub 9-pin
connector (male for the monitor,
female for the personal computer
etc.)
<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
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.
1 Starting the communication: connection command (!00BCN1Cr)
3 Selecting “SDI 1” input (!00BINACr)
5 Terminating the communication: termination command (!00BCN0Cr)
6 Monitor’s status (@00BOKCr)
4 Monitor’s status (@00BOKCr)
2 Monitor’s status (@00BOKCr)
Personal computer
etc.
Monitor
<Command list>
Type No. Commands Functions Data
Basic commands
1*
1
!
*
*
*
2
BCN1Cr Starts communication (connection) No data
2*
1
!
*
*
*
2
BCN0Cr Terminates communication (termination) No data
3!
*
*
*
2
BI DSETx
x*
3
Cr Assigns the control ID 01 – 99
4!
*
*
*
2
BI DRETCr Initializes the control ID No data
5!
*
*
*
2
BI DDSPx
x*
3
Cr Displays/hides the ID
00: Hide
01: Display
6!
*
*
*
2
BI DCHKx
x*
3
Cr
Flashes/hides the selected ID No. of the
monitor
00: Hide
01: Display
7!
*
*
*
2
BMENUCr
Displays the main menu/Quits the menu
operation
No data
8!
*
*
*
2
BUPCr
Moves the cursor upward ( )
No data
9!
*
*
*
2
BDOWNCr
Moves the cursor downward ( )
No data
10 !
*
*
*
2
BADJRCr
Makes setting/adjustment ( )
No data
11 !
*
*
*
2
BADJLCr
Makes setting/adjustment ( )
No data
12 !
*
*
*
2
BSETUPCr Displays the set-up menu No data
13*
1
!
*
*
*
2
BPW1 Cr Turns on the monitor No data
14 !
*
*
*
2
BPW0 Cr Turns off the monitor (standby) No data
15*
4
!
*
*
*
2
BI NACr Selects “SDI 1” input No data
16*
4
!
*
*
*
2
BI NBCr Selects “SDI 2” input No data
17 !
*
*
*
2
BI NCCr Selects “DVI” input No data
18 !
*
*
*
2
BI NDCr Selects “COMPO. / RGB” input No data
19 !
*
*
*
2
BI NECr Selects “VIDEO 1” input No data
20 !
*
*
*
2
BI NFCr Selects “VIDEO 2” input No data
21 !
*
*
*
2
BDI SPCr
Displays the status*
5
No data
22 !
*
*
*
2
BAMUTEx
x*
3
Cr Turns muting on/off 00: Off, 01: On
23 !
*
*
*
2
BASPx
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.
This is a female
terminal.
Pin No. IN terminal
signal
OUT terminal
signal
1
TXD + TXD +
2
TXD – TXD –
3
RXD + RXD +
4
NC NC
5
NC NC
6
RXD – RXD –
7
NC NC
8
GND GND
This is a female
terminal.
<Specifications of RS-232C terminal>
Pin No. Signal
1
NC
2
RXD
3
TXD
4
NC
5
GND
6
NC
7
RTS
8
CTS
9
NC
The 7th terminal and the 8th terminal are
connected.
<Specifications of RS-485 terminal>
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.
DT-V2420L1D_UA_R.indd 15DT-V2420L1D_UA_R.indd 15 06.11.17 10:40:23 AM06.11.17 10:40:23 AM