dedicated KVM switch and rackmount screen technology User Manual Multi-display Control Module Protocol MCS Multi-display control solution 751 Designed and manufactured by Austin Hughes UM-CV-751-MCS-Q114V1 www.austin-hughes.
Contents < Part. 1 > Interface 1.1 1.2 Connection Connection Standard < Part. 2 > Command 2.1 2.2 2.3 CAN Bus Registry Get Address Get Name 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.
< Part 1 > Interface < 1.1 > Connection - As shown in Fig. 1-1, first, connect the personal computer’s RS-232C serial port to the 1st LCD dis play’s LINK port and then begin to add connections from a LCD display, starting from the OUT port. - The first & last LCD displays located at both ends of daisy chain connection must be terminated by setting the pin 1 & 2 of DIP switch ( Set ) to ON position, located next to OUT port.
< 1.2 > Connection Standard 1) Computer to LCD display connection standard - Conducts bi-directional communication using serial RS232. - Use three signal wires of TxD, ( pin 2 ), RxD ( pin 3 ) and GND ( pin 5 ), among the RS232 standard wires, as Fig. 2-1. - Use DTR ( pin 4 ), RTS ( pin 7 ) for hot-plug detect. - The distance between the PC computer to LCD display is limited 15 feet.
< 1.2 > Connection Standard 4) The status lights ( LED ) Port Color Activity IN Green Solid LED indicates that the MSC board is powered on. No light indicates the board is powered off. IN Orange Blinking LED indicated that the data is being transmitted through the connection. No light indicates no data is transmitted Table 2-1 RS-232 Communication Standards Bit Rate 9600 bps Data Bits 8 bits Parity None Stop Bits 1 bit Flow Control None Fig.
< Part 2 > Command No.
< 2.1 > Detailed Description of Commands 1) CAN Bus Registry • Function The computer registers the MCS module of LCD display(s) to CAN bus daisy chain connection. *Registration requires when add or remove the LCD displays from the CAN bus connection.
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< 2.7 > Get PIP Status • Function The computer shows the PIP setting of the LCD display The PIP function may or not be available on a particular LCD display depending on the model selected • Get PIP Status Header 0x06, 0x4D,0x43 • Command 0x07 Val 1 ID Val 2 0x00 0x00 Val 3 Val 4 Val 5 0x00 0x00 0x00 Val 3 Val 4 Val 5 Val 6 0x00 Footer Checksum 0x0D, 0x0A Ack Header 0x4D, 0x43,0x06 PIP : Command 0x07 Val 1 ID PIP Val 2 P.Sour P.
< 2.8 > Set Display ID • Function The computer changes the LCD display ID number. • Set Display ID number Header 0x06, 0x4D,0x43 Command 0x15 Val 1 ID NewID Val 2 0x00 Val 3 0x00 Val 4 0x00 Val 5 0x00 Val 6 0x00 Footer Checksum 0x0D, 0x0A NewID : Changes the LCD display’s ID to New ID number (1~64). *The new ID number will be treated as bad parameter, if the number is 0, 65 ~ 255 or the new ID number already occupied by other LCD display.
< 2.9 > Set Display Name • Function The computer sets the name of the LCD display.
< 2.10 > Show Display ID & Name • Function The LCD Display shows the ID number & name on the screen • Show Display ID and Name Header 0x06, 0x4D,0x43 Command 0x17 Val 1 ID Time Val 2 0x00 Val 3 0x00 Val 4 0x00 Val 5 0x00 Val 6 0x00 Footer Checksum 0x0D, 0x0A Time : The second value for the screen shows the display ID no.
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< 2.16 > Sound Select Control • Function The computer switches the sound setting of the LCD display The PIP function may or not be available on a particular LCD display depending on the model selected • Set Sound Header 0x06, 0x4D,0x43 Command 0x25 Val 1 ID S.Sel Val 2 0x00 Val 3 0x00 Val 4 0x00 Val 5 Val 6 0x00 0x00 Val 5 Val 6 Footer Checksum 0x0D, 0x0A S.
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< 2.19 > Auto Adjust Control • Function Auto adjusts the VGA picture position on the screen Available only when input source is VGA • Set Auto Adust Header 0x06, 0x4D,0x43 Command 0x28 Val 1 ID A.Adj Val 2 0x00 Val 3 0x00 Val 4 0x00 Val 5 Val 6 0x00 0x00 Val 5 Val 6 Footer Checksum 0x0D, 0x0A A.Adj : The auto adjust code for the LCD display ( 0x00 ) • Ack Header 0x4D, 0x43,0x06 • Command 0x28 Val 1 ID Val 2 Val 3 Val 4 A.
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< 2.21 > PIP Control • Function The computer turns the PIP function of the LCD display.
< 2.22 > PIP Source Control • Function The computer adjusts the PIP source of the LCD display The PIP function may or not be available on a particular LCD display depending on the model selected Available only when PIP function is ON • Set PIP Source Header 0x06, 0x4D,0x43 Command Val 1 ID 0x51 P.Sour Val 2 0x00 Val 3 0x00 Val 4 Val 5 0x00 0x00 Val 6 0x00 Footer Checksum 0x0D, 0x0A P.
< 2.22 > PIP Source Control **The PIP is operable in the following table: PIP VGA S-Video Composite DVI-D HDMI SDI YPbPr TV VGA X O O O O O O O S-Video O X X O O O O X Composite O X X O O O O X DVI-D O O O X X O O O HDMI O O O X X O O O SDI O O O O O X X O YPbPr O O O O O X X O TV O X X O O O O X Main P.25 UM-CV-751-MCS-Q114V1 P.27 www.austin-hughes.
< 2.23 > PIP Swap Control • Function The computer swaps the main screen with PIP screen The PIP function may or not be available on a particular LCD display depending on the model selected Available only when the PIP function is ON • Set PIP Swap Header 0x06, 0x4D,0x43 Command 0x52 Val 1 ID P.Swp Val 2 0x00 Val 3 0x00 Val 4 0x00 Val 5 Val 6 0x00 0x00 Val 5 Val 6 Footer Checksum 0x0D, 0x0A P.
< 2.24 > PIP Location Control • Function The computer adjusts the PIP position of the display The PIP function may or not be available on a particular LCD display depending on the model selected Available only when the PIP is in small or large size state • Set PIP location Header 0x06, 0x4D,0x43 Command Val 1 ID 0x53 P.Loc Val 2 0x00 Val 3 0x00 Val 4 0x00 Val 5 Val 6 0x00 0x00 Val 5 Val 6 Footer Checksum 0x0D, 0x0A P.
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