D E V I C E O V E R V I E W
3. DEVICE OVERVIEW
The TDM880i is used as a data-only radio allowing applications to send/receive SDS messages as well as use IP
data services via a PEI-based serial interface.
The PCB connector has a 3-wire serial port with 2.78 V voltage levels for data communications. The RS232 voltage
levels and HW flow control are provided with accessories.
The TDM880i also provides a set of digital I/O lines that can be configured as inputs or outputs. The outputs can be
controlled by SDS messages; the inputs can be used to trigger a status message or location sending to predefined
destinations. For the I/O lines, a 15-pin board-to-wire connector is provided.
The radio module features a GPS receiver for positioning applications. An external active GPS antenna is required
for the receiver. A passive GPS antenna must not be used.
The radio module does not have an integrated TETRA antenna. Thus, a connector for an external antenna is
provided. A combined TETRA/GPS antenna can also be used.
Note:
Simultaneous use of AT commands and IP data is not supported.
Figure 1 TDM880i radio module
Figure 2 LEDS in TDM880i radio module
Содержание TDM880i
Страница 1: ...PS11129BENAC01 06 2017 TDM880i Instruction Manual...
Страница 37: ...TRA TR APP 00093 02 03 EN PS11129BENAC01...