RS-232 Controller / Multi-Display Controller User Manual
Contents
1. 2 LCD display to LCD display connection standard Conducts bi directional communication using CAN bus A maximum of 64 LCD display units can be daisy chained to one CAN bus up to 1 000 meters The distance between LCD Displays is limited 300 meters via Cat 5 6 cable 3 Command communications The CAN bus requires the MCS module of LCD display registration by sending command lt 0x01 gt to add or remove the LCD display s from the CAN bus before command communications Please refer to page 6 for more details All communications are conducted in the form of hexadecimal number and the checksum calculation method as below Total Command ID Val1 Val2 Val3 Val4 Val5 Val6 Checksum 256 Total Unsigned character of Checksum Total 0 Get Power Status e g Power ON amp ID 1 Checksum 0x4D e Semmens SS salt x0 0x4D 1 0xF 0x43 0x06 0x04 0x01 0x00 0x00 0x00 0x00 0x00 Ox0D Ox0A Here each set functions according to the commands received and responds with ACK at the same time Therefore the operation of each set should be checked after this process UM CV 751 MCS Q113V1 P 2 lt 1 2 gt Connection Standard 4 The status lights LED IN Green Solid LED indicates that the MSC board is powered on No light indicates the board is powered off Blinking LED indicated that the data is being transmitted through the connection No IN Orange tte a F light indicates no data is tr2. Checksum 0x06 0x4D 0x43 Ack Checksum mn os es es en POM pen oon os a e ew om os 80 om Ctrast The contrast value of the display Bright The brightness value of the display Nak Checksum 0x4D 0x43 0x15 0x06 0x00 0x00 0x00 0x00 0x00 0x0D 0x0A UM CV 751 MCS Q113V1 P 10 lt 2 7 gt Get PIP Status e 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 e Get PIP Status Checksum e Ack Ta p mesoo par ee peol pe o o 00 The PIP status value code for the display 0x0D 0x0A P Sour The PIP source code for the display P Loc The PIP location code for the display Nak ee sis UM CV 751 MCS Q113V1 P 14 lt 2 8 gt Set Display ID e Function The computer changes the LCD display ID number Set Display ID number Checksum NewlD 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 e Ack Checksum e Nak Checksum 0x4D 0x43 0x15 0x15 0x00 0x00 0x00 0x00 0x00 0x0D 0x0A UM CV 751 MCS Q113V1 P 12 lt 2 9 gt Set Display Name e Function The computer sets the name of the LCD display e Set Display Name Checksum Chari The 1st character of the name
3. Ox0D Ox0A Char2 The 2nd character of the name Char3 The 3rd character of the name Char4 The 4th character of the name Char5 The 5th character of the name Char6 The 6th character of the name Character of the name can allow a z A Z 0 9 amp space character e Ack ee E 0x4D 0x43 0x06 Nak ee Bea on on on on won 28H ero em om om em ems ee 0x4D 0x43 0x15 UM CV 751 MCS Q113V1 P 13 lt 2 10 gt Show Display ID amp Name e Function The LCD Display shows the ID number amp name on the screen Show Display ID and Name cours err roe 0e ow 00 os fo Time The second value for the screen shows the display ID no amp name 5 255 Ox0D 0x0A Checksum e Ack Checksum Nak Checksum Ox0D Ox0A UM CV 751 MCS Q113V1 P 14 lt 2 11 gt Volume Control e Function The computer changes the volume level of the LCD display The audio function may or not be available on a particular LCD display depending on the model selected e Set Volume Checksum Vol The volume level value code of the LCD display 0 100 Ox0D Ox0A e Ack ie Se e Nak ee Bee oe om e 0x4D 0x43 0x15 P 15 lt 2 12 gt Mute Control e Function The computer turns the mute ON or OFF of the LCD display The audio function may or not be available on a particular LCD display depending on the model selected e Set Mute Contro
4. aRA ESE EAEAgSESEF 4 Es el ES ED P 25 UM CV 751 MCS Q113V1 P 27 www rackmountsales com lt 2 23 gt PIP Swap Control e 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 e Set PIP Swap Checksum Ox0D 0x0A P Swp 0x00 always e Ack corea Nak oe on on on on on 2 28 en om 0x4D 0x43 0x15 P 28 lt 2 24 gt PIP Location Control e 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 e Set PIP location Checksum P Loc The PIP location code for the LCD display 0x0D 0x0A Ack Checksum e Nak Checksum Ox0D Ox0A P 29 The company reserves the right to modify product specifications without prior notice and assumes no responsibility for any error which may appear in this publication Crystal Image Technologies Inc 800 542 2489 sales rackmountsales com
5. aT CRYSTAL IMAGE T E CHN GL G dedicated KVM switch and rackmount screen technology User Manual Multi display Control Module Protocol MCS Multi display control solution 751 Crystal Image Technologies Inc 800 542 2489 sales rackmountsales com lt Part 1 gt 1 1 1 2 lt Part 2 gt 2 1 2 2 2 3 2 4 2 5 2 6 27 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 24 Contents Interface Connection Connection Standard Command CAN Bus Registry Get Address Get Name Get Power Status Get Display Status Get Screen Status Get PIP Status Get Display ID Get Display Name Get Display ID amp Name Volume Control Mute Control Input Source Select OSD Button Control Infrared Remote Control Sound Select Control Contrast Control Brightness Control Auto Adjust Control Power Control PIP Control PIP Source Control PIP Swap Control PIP Location Control P 1 P2 3 P 4 P 5 P 6 ead P 8 P 9 P 10 P 11 P 12 P 13 P 14 P 15 P 16 P 17 P 18 P 19 P 20 P 21 P 22 P 23 P 24 P 25 P 26 27 P 28 P 29 lt Part 1 gt Interface lt 1 1 gt 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 amp last LCD displays located at both ends of daisy chain con
6. ansmitted Table 2 1 RS 232 Communication Standards Bit Rate 9600 bps Fig 2 1 RS 232 pin out DB 9 pin used for Asynchronous Data 12345 UM CV 751 MCS Q113V1 P 3 lt Part 2 gt Command UM CV 751 MCS Q113V1 P 4 lt 2 1 gt Detailed Description of Commands 1 CAN Bus Registry e 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 e Register MCS Module s Checksum e Ack Es eee eee MAC1 MAC2 MAC3 MAC4 0x0D 0x0A 0x4D 0x43 0x06 MAC1 The 1st byte of MAC address for the LCD display MAC2 The 2nd byte of MAC address for the LCD display MAC3 The 3rd byte of MAC address for the LCD display MAC4 The 4th byte of MAC address for the LCD display e Nak el ses ERR Error code that shows the type of error that occurred Display controller error Serial controller error Unsupported Command UM CV 751 MCS Q113V1 P S lt 2 2 gt Get Address e Function The computer shows the 32 bit MAC address of the LCD display e Get LCD Display Address Checksum Ack Checksum MAC1 MAC2 MAC3 MAC4 0x0D Ox0A 0x4D 0x43 0x06 Nak Checksum UM CV 751 MCS Q113V1 P 6 lt 2 3 gt Get Name e Function The computer shows the name of the LCD display e Get LCD Display Address Checksum e Ack acer acc
7. e Ack ae Em 0x4D 0x43 0x06 Nak ee Bee oe en es pe oe MPH oc es oe pee pe o om ver 0x4D 0x43 0x15 P 23 lt 2 20 gt Power Control e Function The computer switches the power for the screen of LCD display e Set Power Checksum Power The power code for the screen of LCD display Ack ee Nak Pee ae oe om om ae os Mam os 0x0D 0x0A 0x4D 0x43 0x15 P 24 lt 2 21 gt PIP Control e Function The computer turns the PIP function of the LCD display The PIP function may or not be available on a particular LCD display depending on the model selected e Set PIP Control Checksum cx ew owe es oe oe PIP The PIP function code for the LCD display 0x0D 0x0A e Ack Checksum e Nak Checksum 0x0D Ox0A P 25 lt 2 22 gt PIP Source Control e 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 e Set PIP Source Checksum P Sour The PIP source code for the LCD display VGA 0x11 S Video e Ack sum Nak Checksum i 0x0D 0x0A P 26 lt 2 22 gt PIP Source Control The PIP is operable in the following table See Video Teens 0 TV EASE ERED 25 2s Se L_ ees Te EAE ESESZES EIEARwESES EI R
8. e 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 e Set Sound Checksum cones oe e gt oo oa on ow S Sel The sound select code for the LCD display Ox0D 0x0A ee ee e Nak ren eee on on on on on JOA en om 0x4D 0x43 0x15 P 20 lt 2 17 gt Contrast Control e Function The computer adjusts the contrast of the LCD display e Set Contrast Checksum cso os en we oe oan os ase ContV The contrast value code for the LCD display O 100 Ox0D Ox0A e Ack Pee Ki 0x4D 0x43 0x06 e Nak eee ee e om ey or om om ae os MA oo 0x4D 0x43 0x15 P 21 lt 2 18 gt Brightness Control e Function The computer adjusts the brightness of the LCD display Set Brightness Checksum cs 027 oron oe om on er o 25 en om Bright The brightness value code for the LCD display O 100 e Ack prs Sean e Nak ee Ee en es es es en POM an oe 0x4D 0x43 0x15 P 22 lt 2 19 gt Auto Adjust Control e Function Auto adjusts the VGA picture position on the screen Available only when input source is VGA e Set Auto Adust fesse eoe ee Cee oes Sch Checksum porao oat P aan er oe pe oe 00 A Adj The auto adjust code for the LCD display 0x00 0x0D Ox0A
9. l SS C Checksum cox pogoda Mute The mute code for the LCD display Ack SS A Checksum Fouo osone or nue sco oxo ote ooo oxo PEM oxo oc 0x0D Ox0A Nak epee ren E pene Checksum ee e ee oe o fo rer 0x4D 0x43 0x15 P 16 lt 2 13 gt Input Source Select e Function The computer changes the input source of the LCD display Some of inputs may or not be available on a particular LCD display depending on the model selected e Set Input Source Checksum ooo roe oe on ew ow oes Input The input source code for the LCD display l 0x0D 0x0A S Video ee YPbPr Ack Checksum e Nak Checksum P 17 lt 2 14 gt OSD Button Control e Function The computer switches the OSD button function ON OFF e Set OSD Button Header Command Val1 Val2 Val3 Val4 Val5 Val6 Footer Checksum 0x0D Ox0A LES ee ae e Nak ee a oe oe on on on JAH eno 0x4D 0x43 0x15 P 18 lt 2 15 gt Infrared Remote Control e Function The computer enables and disables the infrared reception feature of the LCD display e Set Infrared Remote Checksum Sm fm owe es os e gt IR Reception enable disable code for the LCD display infrared remote control e Ack COTE A e Nak PoE es oe pee oe o fo rer 0x0D 0Ox0A 0x4D 0x43 0x15 P 19 lt 2 16 gt Sound Select Control
10. nection must be terminated by setting the pin 1 amp 2 of DIP switch Set to ON position located next to OUT port For other daisy chain LCD display s please keep the pin 1 amp 2 of DIP switch at OFF position Pin 1 amp 2 are default at OFF position The new DIP switch setting requires a power cycle of LCD display to take effect The MCS module of LCD display will automatically assign an available ID number from 1 to 64 to each LCD display when connected to the daisy chain to eliminate LCD displays trying to use the same IDs simultaneously Fig 1 1 Connecting the PC amp LCD Displays Set switch For the 1st and last display push the set switch upward RS 232C ox For other daisy chain displays i 15 feet serial cable over 15 feet extender required push the set switch downward a D wi LINK OUT Cat5 6 cable Cat5 6 cable Cat5 6 cable ii max 300 meters max 300 meters max 300 meters RJ 45 jack Daisy chain up to 1 000 up to 64 displays meters and 64 displays UM CV 751 MCS Q113V1 P 1 lt 1 2 gt 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 15m
11. t or owe a one ee os on ow om mo oon 0x4D 0x43 0x06 Chari The 1st character of the name Char2 The 2nd character of the name Char3 The 3rd character of the name Char4 The 4th character of the name Char5 The 5th character of the name Char6 The 6th character of the name The default value of the character of the name is OxFF e Nak I ieee ae UM CV 751 MCS Q113V1 P 7 lt 2 4 gt Get Power Status e Function The computer shows the power status of the screen of LCD display e Get Power Status Checksum 0x06 0x4D 0x43 e Ack Checksum Power The power code for the LCD display 2 oe on oe wn en om Power ON e Nak Checksum UM CV 751 MCS Q113V1 P 8 lt 2 5 gt Get Display Status e Function The computer shows the current setting of the LCD display e Get LCD Display Address Checksum e Ack sum oe Joe ose Joon a o owe e oe an er om 0x4D 0x43 0x06 The volume value of the LCD display 1 100 Mute The mute code for the LCD display Input The input source code for the LCD display OSDB The OSD button control code for the LCD display IR The infrared remote control code for the LCD display Sound The sound select code for the LCD display Nak oe EA UM CV 751 MCS Q113V1 P 9 lt 2 6 gt Get Screen Status e Function The computer shows the current screen setting of the LCD display e Get Screen Status
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