14 CCDI TM8100/TM8200 Computer-Controlled Data Interface (CCDI) Protocol Manual
© Tait Electronics Limited April 2007
If set to Aux, the radio will use the AUX_TXD and AUX_RXD lines on
the auxiliary connector.
If set to Internal Options, the radio will use the IOP_TXD and IOP_RXD
lines on the internal options connector.
For more information on MAP27 data transmission, refer to Technical Note
TN-1075-AN, MAP27 Implementation Form (Appendix A7).
1.3 Before Operating
Before using CCDI, the following is useful to check.
■ The radio must be correctly programmed for use with the CCDI
protocol. See “Programming” on page 14 for configuration information.
■ At power on, the radio will select its default channel. To change the
channel, select the channel using the normal radio interface or using the
CCDI Go_To_Channel command. Refer to “GO_TO_CHANNEL”
on page 29.
■ The radio will power on into the mode selected in the ‘Powerup State’
field in the Data form.
■ Power, Tx and Rx LED indicators are helpful for establishing proper
operation. The radio speaker can be used to listen to data coming in.
■ Data flow is controlled either by the customer’s embedded computer
system or by a PC running a data-sending application such as
Hyperterminal.
1.4 Limitations
Important Some data applications require extended transmission
times. This may be for larger file transfers or for real-time
telemetry information. This may put undue stress on the
radio transmitter and care must be taken to control trans-
mission times using flow control. Refer to “Hardware Flow
Control” on page 15.
1.5 Programming
For information on the parameters in the Data form of the programming
application, refer to:
■ the Help of the programming application
■ Technical Note TN-919-AN Configuring the TM8100 for Data
Operation.
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