CDK-111A-Lite Owner's Guide - Ross Video

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Protocol ElementsThe recommended wiring to a controller using a standard single-ended unbalancedfull duplex RS-485 or 0-12V RS-232 compatible interface is as follows:CDK-111BNC 3RX -ControllerTX -BNC 4TX -RX -CommonSingle-ended InterfaceIf differential input is required, the recommended CDK-111A-Lite to controllerwiring is as follows. Note the bias of approximately two volts on the RX minus inputconnection, internal to the controller:CDK-111ControllerBNC 3RX -TX -(No Connect)TX +BNC 4TX -RX -+5V7K5(No Connect)RX ++2V4K7CommonDifferential Input Interface4-4 • Appendix A. Serial Protocols CDK-111A-Lite • Owner’s Guide v4B
The components of the serial data are shown in the figure below. These are:1. The break character, to prepare the serial interface for communication.2. An address byte, to select the keyer as the device to communicate withthe editor. For the CDK-111A-Lite, this is factory shipped as 30H(Hex) with the ability to change it to any legal value.3. The command / message blocks,which actually direct keyer operation.The structure of these blocks is discussed in the next sections.BREAKADDRESSBYTESelectAddressorPollAddressCommand/Message BlocksProtocol ElementsBreak Character (00)The break character is sent by the editor to the serial port of the keyer to prepare itfor receipt of further data. The break character puts the editor interface into the“active” state. After receipt of the break character, the keyer ceases all buscommunications, resets any communication errors, empties the receive buffer of allpending commands, and awaits receipt of an address byte. The break character iscomposed of 17 to 20 bits of spacing data (low logic level) followed by a minimumof two bits of marking data (high logic level).Address Byte (Editor Select Address)Following receipt of the break character, the editor interface will expect a one-byteaddress, either the Select Address or the Poll Address. Most often, the address sent isthe Select Address. The editor select address identifies the keyer as the device tocommunicate with the editor.The Select Address must always be an even number. The Poll Address equals theSelect Address plus “1”, and is sent by the editor to determine if the keyer is on thebus. If the keyer is present (active), it sends an “acknowledge byte” of 84H (Hex)back to the editor and remains in the active state. The keyer is now ready to acceptcontinuous command/message transmission from the editor without going throughthe initial break/address sequence again. Any communication errors or “time outs”cause the keyer to send a “negative acknowledge byte” of 85H, reject anyunexecuted commands, and return to the idle state.Receipt of any other device’s Select Address also causes the serial interface to enterthe idle state, requiring the break/address sequence to be performed before thecommunication can be restored. If another device’s Poll Address is received, it isignored and the serial interface remains in the active state.The Select Address is set on the CDK-111A-Lite via the rotary Board ID dial at thecard edge. The select address for the keyer is the indicated Board ID on the dialmultiplied by 2. If zero is selected, the Select Address is determined by navigating tothe on-screen menu system. The on-screen menu system allows the selection of anylegal select address (00-FC, even numbers).CDK-111A-Lite • Owner’s Guide v4B Appendix A. Serial Protocols • 4-5
Page 1 and 2:
Ross Video LimitedCDK-111A-LiteOwne
Page 4 and 5:
Important Regulatory and Safety Not
Page 6 and 7:
Company AddressRoss Video Limited R
Page 9 and 10:
ContentsIntroduction 1-1A Word of T
Page 11 and 12:
Technical Specifications...........
Page 13 and 14: IntroductionA Word of ThanksCongrat
Page 15 and 16: Documentation ConventionsThe follow
Page 17 and 18: AbbreviationsThe following abbrevia
Page 19 and 20: Product Comparison ChartFor your re
Page 21 and 22: A Word about Technical SupportAt Ro
Page 23 and 24: Installation and SetupIn This Chapt
Page 25 and 26: OverviewCDK 11111023456798CDK111A-L
Page 27 and 28: BNC ConnectorsThis section defines
Page 29 and 30: Single CDK-111A-Lite Settings for R
Page 31 and 32: Accessing the Menu SystemSetup and
Page 33 and 34: Control Panel - DCP-111 (Optional)U
Page 35 and 36: Navigating Through the Menus Using
Page 37 and 38: The next series allow you to config
Page 39 and 40: 8012345 67Card Address Configuratio
Page 41 and 42: OperationIn This ChapterThis chapte
Page 43 and 44: 4) Menu Select/FTB Button (SW4)•
Page 45 and 46: Control Panel - DCP-111 (Optional)T
Page 47 and 48: GPIs and TalliesThis section descri
Page 49 and 50: The Menu SystemThe CDK-111A-Lite is
Page 51 and 52: Menu 1: Runtime ParametersAuto Tran
Page 53 and 54: Menu 4: Box Mask PositioningMenu 4:
Page 55 and 56: Menu A: DiagnosticsMenu A: Diagnost
Page 57 and 58: Menu D: Card SetupTest PatternSelec
Page 59 and 60: Menu F: BNC ListingMenu F: BNC List
Page 61 and 62: Appendix A. Serial ProtocolsIn This
Page 63: By means of “read” and “write
Page 67 and 68: Receive commandfrom editorMake chan
Page 69 and 70: Message BytesThe number of message
Page 71 and 72: Protocol Command DescriptionsList o
Page 73 and 74: Bit776655Analog Control Command (45
Page 75 and 76: NotePush-button / Lamp Control Comm
Page 77 and 78: Transition Mode Command (4A, CA)Fun
Page 79 and 80: Rate2=Next most significant digitRa
Page 81 and 82: Software Version Command (6C, EC)Th
Page 83 and 84: Error Status Command (71, 72)The ed
Page 85 and 86: GVG MASTER2100 Emulation ProtocolTh
Page 87 and 88: Command ListThe following table lis
Page 89 and 90: Select Transition Type (0x03, TX_TY
Page 91 and 92: FunctionCrosspoint byte values:00 N
Page 93 and 94: Key Enable (0x0B, KEY_ENABLE)Functi
Page 95 and 96: FunctionQUERYErrorCodeFunctionQUERY
Page 97 and 98: either end of the communications li
Page 99 and 100: Appendix B. Software UpgradesIn Thi
Page 101 and 102: CautionCard may be hot to the touch
Page 103 and 104: Appendix C. SpecificationsIn This A
Page 105 and 106: Feature Comparison ChartFeature CDK
Page 107 and 108: CDK-111A-Lite BNC SettingsConnector
Page 109 and 110: I/O, Power, Delay SpecificationsTec
Page 111 and 112: BNC 4 (Tx) RS422/RS485 Jumper Confi
Page 113 and 114: Index112-Bit Analog Value..........
Page 115 and 116:
GPIabbreviation ...................
Page 117 and 118:
SW5, Board ID Switch ..............
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CDK-111A-Lite Owner's Guide - Ross Video

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