Using The Serial Communication - JVC DT-V21G11 Bedienungsanleitung

External Control (cont.)

Using the serial communication

You can control the monitor from a personal computer etc. via the RS-485 or RS-232C terminal.
Consult your dealer for the details of the external control specification.
<Communication specifications>
Input terminal
RS-485
RS-232C
<Specifications of the RS-485 terminal>
This is a female terminal.
<Specifications of the RS-232C terminal>
This is a female terminal.
<Command outline>
All commands consist of the following segments.
Header
On Header
"!" : Operation commands from the personal computer, etc. (
"?" : Reference commands from the personal computer, etc.
"@" : Status returns from the monitor
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
PC, etc.
24
Cable
A straight LAN cable
A straight cable with a D-sub 9-pin connector (male
for the monitor, female for the personal computer
etc.)
Pin No. IN terminal signal
1 TXD +
2 TXD −
3 RXD +
4 NC
5 NC
6 RXD −
7 NC
8 GND
Pin No.
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.
Monitor ID Command ID
1 Starting the communication: connection command (!00BCN1Cr)
2 Monitor's status (@00BOKCr)
3 Selecting "SDI 1" input (!00BINACr)
4 Monitor's status (@00BOKCr)
5 Terminating the communication: termination command (!00BCN0Cr)
6 Monitor's status (@00BOKCr)
Terminal
specification
See below
OUT terminal signal
TXD +
TXD −
RXD +
NC
NC
RXD −
NC
GND
Signal
Function
<Basic command list> on page 25)
Communication specifications
Baud Rate: 4800 bps
Data Bits: 8 bits
Parity: No parity
Stop Bits: 1 bit
Flow Control: No control
Communication Code: ASCII Code
Data Cr (0Dh)
Monitor