7.2. Dumb Mode
To give compatibility with existent radio, this mode is provided. In this mode, Standard
Terminal Emulation programs, such as Procomm, can be used for communication
between the SD-170E radios but the PTT/RTS line has to be controlled, manually, from
another source.
NOTE : The Dumb mode will not transmit simply by sending its data.
This operating mode uses 6wire cable like in hardware flow control and jumper position
of CON407. If the DTE has data to transmit, the DTE applies a 2.5V high to the
PTT/RTS line on pin 4 of the DB-15 connector, which will cause the radio disable the
receive circuits and switch the transmitter on, and then release data to radio. This size
of data to be released should be limited under size of the buffer memory of the slave
MCU. After all assigned data is transmitted, the DTE returns RTS signal below -2.5V to
complete the transmission. In other words, the RTS line is used like a conventional PTT
line in this mode.
Содержание ACC-513E
Страница 28: ...e Main window appears click Icon inside red circle f Click the Settings tab button ...
Страница 29: ...g Click the ASCII Setup button h Check Send line ends with line feeds and Echo typed characters locally ...
Страница 37: ...9 Pin out chart for ACC 513E 514E 9 1 Pin out for ACC 513E ...
