TM8100/TM8200 Computer-Controlled Data Interface (CCDI) Protocol Manual
CCR
65
© Tait Electronics Limited
April 2007
2.8.7
Receive DCS Value
Description
This command disables the DCS filter if the code is “000”. If the code is not
recognized as an octal, the radio does not act on the command and sends a
NAK (range error) back.
Command
C03xxxcc
Where:
Effect
This command has immediate effect and closes the mute to signals without
a valid DCS tone.
2.8.8
Transmit DCS Value
Description
This command disables the DCS encoding if the code is “000”. If the code
is not recognized as an octal, the radio does not act on the command and
sends a NAK (range error) back.
Command
D03xxxcc
Where:
Effect
This command loads the value into memory ready for the next PTT or
Selcall encode activity.
2.8.9
Encode Selcall Sequence
Description
This command turns the transmitter on and sends the Selcall string
following a short delay (network 1 lead-in delay). If the number of tones is
incorrect the command is rejected (NAK-format error).
Parameter
Value
C
ASCII letter C denotes the Receive DCS Value load command
03
ASCII hex number 03 is the number of characters for parameters
xxx
ASCII number xxx represents a DCS code in octal
cc
ASCII hex number cc is the checksum
Parameter
Value
D
ASCII letter D denotes the transmit DCS value to be sent on transmit
03
ASCII hex number 03 is the number of characters for parameters
xxx
ASCII number xxx represents a DCS code in octal
cc
ASCII hex number cc is the checksum
