Using The Serial Communication - JVC DT-R24L41D 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 specifi cation.
<Communication specifi cations>
Input terminal
RS-485 A straight LAN cable
RS-232C A straight cable with a D-sub 9-pin connector (male
for the monitor, female for the personal computer etc.)
<Specifi cations of the RS-485 terminal>
This is a female terminal.
<Specifi cations of the RS-232C terminal>
This is a female terminal.
• The 7th terminal and the 8th terminal are connected.
<Command outline>
All commands consist of the following segments.
Header Monitor ID
On Header
"!": Operation commands from the personal computer, etc. (☞ <Basic command list> on page 21).
"?": 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.
20
Cable
Pin No. IN terminal signal
1 TXD +
2 TXD –
3 RXD +
4 NC
5 NC
6 RXD –
7 NC
8 GND
Pin No. Signal
1 NC
2 RXD
3 TXD
4 NC
5 GND
6 NC
7 RTS
8 CTS
9 NC
Command ID
1Starting the communication:
connection command (!00BCN1Cr)
2Monitor's status (@00BOKCr)
3Selecting "SDI 1" input (!00BINACr)
4Monitor's status (@00BOKCr)
5Terminating the communication:
termination command (!00BCN0Cr)
6Monitor's status (@00BOKCr)
Terminal
specifi cation
☞ See below
OUT terminal signal
TXD +
TXD –
RXD +
NC
NC
RXD –
NC
GND
Function Data
Monitor
Communication specifi cations
Baud Rate: 4800 bps
Data Bits: 8 bits
Parity: No parity
Stop Bits: 1 bit
Flow Control: No control
Communication Code: ASCII Code
Cr (0Dh)