TRANSCEIVER 400 MHz MTP700 Portable Radio / Detailed Service Manual 4.1 - 25
RS232, SB9600, JTAG
The RedCap2 processor (RCE) uses the three serial protocols: RS232/UART, SB9600,
and JTAG to communicate with external devices via the bottom connector of the unit.
There is no external hardware for switching from one protocol to another because the
RedCap2 handles the switching and line multiplexing functions internally.
Battery ID
The battery is equipped with a Dallas 2502 EPROM. A one-wire serial bus allows the
radio or the battery charger to communicate with the battery and identify whether or not
the battery is compatible. If the battery is determined to be incompatible, the unit auto-
matically shuts off, and the charger does not enter charging mode.
Besides compatibility data, the EPROM also stores the following information: battery
type, capacity, fuel-gauging parameters, and voltage threshold.
To Next Page
Loading...
