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 status
calls. 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 front
of the caller ID, separated by a “-”. This required Selcall output to be
enabled using the FUNCTION command. Refer to “FUNCTION”,
[FUNCTION]=0, [SUBFUNCTION]=3.
Note By checking [SIZE] in RING message, PC will be able to know
if the whole [CALLER_ID] part is missed or not.
Example r0714000FFA6 This message indicates that the received call is an
SDM call.
1.10.10 TDMA_DATA
Unsolicited. TM8200 only.
The TDMA_DATA message is sent to the DTE in response to a reception
of a TDMA data packet.
Format z [SIZE] [TDMA_DATA] [CHECKSUM]
■ ‘z’ is sent as a single ASCII character representing the TDMA_DATA
message.
■ [TDMA_DATA] is raw TDMA message data.
Example z15Hi_TDMA_data_receivedcc
indicates 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 OK
The Transaction OK response is a single ASCII full stop character (2Eh).
This message is sent when the radio receives a command from the PC and
confirms that the command has been received.
6 Message
7 Status query
8 Status update
9 Emergency alarm rqt [?]
10 P25 acknowledgement
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