JVC GM-F420S Instruction Manual - Page 21

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. Input terminal Cable Terminal specification Communication specifications RS-485 RS-232C A straight LAN cable A straight cable with a RS-232C connector (male for the monitor, female for the external control equipment) See below. Baud Rate: 4800 bps Data Bits: 8 bits Parity: No parity Stop Bits: 1 bit Flow Control: No control Communication Code: ASCII Code 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: 1 Starting the communication: connection command (!00BCN1Cr) 2 Monitor's status (@00BOKCr) External control equipment 3 Selecting the Input VIDEO (!00BINACr) 4 Monitor's status (@00BOKCr) 5 Terminating the communication: termination command (!00BCN0Cr) 6 Monitor's status (@00BOKCr) Monitor • Commands starting with "!" are operation commands from the external control equipment. For details, see on the right. • Commands starting with "@" are status returns from the monitor. This is a female terminal. Pin IN terminal OUT terminal No. signal signal 1 TXD + TXD + 2 TXD - TXD - 3 RXD + RXD + 4 NC NC 5 NC IR. OUT 6 RXD - RXD - 7 5 V power NC 8 GND GND • The 5 V power supply of the 7th terminal is for the dedicated controller. Do not use it for other devices. This is a female terminal. Pin No. 1 2 3 4 5 6 7 8 9 Signal - RD (Receive Data) TD (Transmit Data) - GND (Ground) - RTS CTS - • The 7th terminal and the 8th terminal are connected. No. Commands 1* ! * * B C N 1 Cr 2* ! * * B C N 0 Cr 3 ! * * B I D S E T x x Cr 4 ! * * B I D R E T Cr 5 ! * * B I D D S P x x Cr 6 ! * * B I D C H K x x Cr 7 ! * * B M E N U Cr 8 ! * * B U P Cr 9 ! * * B D O W N Cr 10 ! * * B A D J R Cr 11 ! * * B A D J L Cr 12 ! * * B E N T E R Cr 13 ! * * B S E T U P Cr 14* ! * * B P W 1 Cr 15 ! * * B P W 0 Cr 16 ! * * B I N A Cr 17 ! * * B I N B Cr 18 ! * * B I N C Cr 19 ! * * B D I S P Cr 20 ! * * B V P L S Cr 21 ! * * B V M N S Cr 22 ! * * B V O L x x Cr 23 ! * * B A M U T E x x Cr Functions Starts communication (connection) Terminates communication (termination) Assigns the control ID Initializes the control ID Displays/hides the ID Flashes/hides the selected ID No. of the monitor Displays the MAIN MENU/Quits the menu operation Moves the cursor upward (5) Moves the cursor downward (∞) Makes setting/adjustment (3) Makes setting/adjustment (2) Enters the password for the Security Lock Displays the SET-UP MENU Turns on the monitor Turns off the monitor Selects Input VIDEO Selects Input RGB Selects Input DVI Displays the status Turns the volume up Turns the volume down Adjusts the volume Turns muting on/off 24 ! * * B A S P x x Cr Selects the aspect ratio 25 ! * * B A S P T Cr Changes the aspect ratio 26 ! * * B P I C M O D x x Cr Selects the picture mode 27 ! * * B P I P x x Cr 28 ! * * B P B P x x Cr Turns on/off the PIP mode Turns on/off the PBP mode Data No data No data 01 - 25 No data 00: Hide, 01: Display 00: Hide, 01: Flash No data No data No data No data No data No data No data No data No data No data No data No data No data No data No data 0 - 30 00: Off, 01: On 00: REGULAR, 01: FULL, 02: ZOOM, 03: PANORAMIC, 04: REAL DOT No data 00: DYNAMIC, 01: NORMAL, 02: USER 00: Off, 1: On 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. 21