52 CCDI TM8100/TM8200 Computer-Controlled Data Interface (CCDI) Protocol Manual© Tait Electronics Limited April 2007■ [STATUS] is a two digit string representing the received status for statuscalls. If a [STATUS] value is not received, then [STATUS] will be “FF”.■ [CALLER_ID] is a caller’s ID which is optional and of variable length.If the ID is different to the radio’s ID, the destination ID is placed in frontof the caller ID, separated by a “-”. This required Selcall output to beenabled using the FUNCTION command. Refer to “FUNCTION”,[FUNCTION]=0, [SUBFUNCTION]=3.Note By checking [SIZE] in RING message, PC will be able to knowif the whole [CALLER_ID] part is missed or not.Example r0714000FFA6 This message indicates that the received call is anSDM call.1.10.10 TDMA_DATAUnsolicited. TM8200 only.The TDMA_DATA message is sent to the DTE in response to a receptionof a TDMA data packet.Format z [SIZE] [TDMA_DATA] [CHECKSUM]■ ‘z’ is sent as a single ASCII character representing the TDMA_DATAmessage.■ [TDMA_DATA] is raw TDMA message data.Example z15Hi_TDMA_data_receivedccindicates that the RU has valid TDMA packet, which is“Hi_TDMA_data_received”.cc is a placeholder of the CCDI message checksum.1.10.11 TRANSACTION OKThe Transaction OK response is a single ASCII full stop character (2Eh).This message is sent when the radio receives a command from the PC andconfirms that the command has been received.6 Message7 Status query8 Status update9 Emergency alarm rqt [?]10 P25 acknowledgement