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

Card Status Command (73, 74)The editor uses the read command to determine the current status of the key. Theresponse from the keyer will be in the form of the write command, the message bytehaving the formats shown in the figure below the table.NoteThe CDK-111A-Lite will treat bits 0 and 1 as interchangeablesince it only has one keyer.NoteThe write command updates the appropriate key status displayand may or may not change the key status.The write command is shown (see below) for explanationpurposes only. It is not intended to be sent by the editor to thekeyer.Card Status Command (73, 74)Function Byte Count EffectsAddressCommandCodeREAD: 02 00 73 NoneMessageWRITE: 03 00 74 Card Status ByteBit7654321Bit0Don't Care Bits0 = Key 1 off Air1 = Key 1 on Air0 = Unused1 = Unused0 = On Air1 = Faded to BlackCard Status Byte Format4-22 • Appendix A. Serial Protocols CDK-111A-Lite • Owner’s Guide v4B