Logic Level Compatibility; Gps Port; Map27 Port - Tait TM8100 Protocol Manual

1.2.2

Logic Level Compatibility

Digital Input
Compatibility and
Tolerance
Digital Output
Compatibility
1.2.3

GPS Port

1.2.4

MAP27 Port

TM8100/TM8200 Computer-Controlled Data Interface (CCDI) Protocol Manual
© Tait Electronics Limited April 2007
The following table show the compatibility of the radio's digital I/O used
for CCDI with common industry logic standards.
Logic standard input compatibility and tolerance
Digital Input
Line
3.3V CMOS
AUX_RXD Yes
IOP_RXD Yes
CH_RXD Yes
MIC_RXD
PRG_RXD
a. Level compatible but not tolerant. Inputs can be made RS-232 tolerant by using 3.3kΩ series
resistance inserted at the radio end.
Logic standard input compatibility and tolerance
Digital Output
Line
3.3V CMOS
AUX_TXD Yes
IOP_TXD Yes
CH_TXD Yes
MIC_TXD
PRG_TXD
a. These outputs can be made 5V CMOS compatible using a 3.3kΩ pull-up resistor to 5V that is
provided by the device being driven.
The GPS receiver/antenna is also connected to an asynchronous serial port
and must be different to the CCDI UART Port. The GPS receiver/antenna
is set in the Data form of the programming application, GPS tab, and can be
set to Mic, Aux or Internal Options.
If set to Aux, the GPS receiver will send NMEA messages to the radio via
the AUX_RXD line on the auxiliary connector.
If set to Internal Options, the GPS receiver will send NMEA messages to
the radio via the IOP_RXD line on the internal options connector.
MAP27 data transmission and reception also requires an asynchronous serial
port and must be different to the CCDI UART Port. The MAP27 port is
set in the Data form of the programming application, MAP27 tab, and can
be set to Mic, Aux or Internal Options.
If set to Mic, the radio will use the MIC_TXD and MIC_RXD lines on the
microphone connector.
5V CMOS 5V TTL
Yes Yes
Yes Yes
Yes Yes
5V CMOS 5V TTL
No Yes
a
No Yes
No Yes
RS-232
Yes
a
No
Yes
RS-232
No
No
No
CCDI 13