SATELLINE-3AS and SATELLINE-3ASd
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DATA COMMUNICATION
DATA COMMUNICATION
5.1
5.1
RS-Interface
RS-Interface
5.1.1
D15 Connector
The radio modem is referred as a DCE (Data Communication Equipment) and PC’s and
terminals as DTE’s (Data Terminal Equipment). The SATELLINE-3AS radio modem has a 15-pin
‘D’ type female connector for all the interface connections.
The design of the radio modem will take into account any filtering necessary on these
connections to ensure compliance with spurious emissions and EMC regulations. The user should
therefore not need to take any further precautions against emissions out of the radio modem.
The radio modem has two RS-ports, COM1 and COM2. Port COM1 has RS-232-level interface
and port COM2 has RS-232, RS-422 and RS-485 interfaces. Only one port can be used for
communication at a time. Port COM2 can be used in RS-422 or RS-485 mode only if it is
physically set at the factory, the mode change is not possible afterwards by software only.
NOTE!
WHEN MODE PIN (12) IS CONNECTED TO THE GROUND (SETUP MODE) THE RADIO
MODEM ALWAYS USES PORT COM1 (PINS 7,9,11) ! So if you are using port COM2
for communication you have to use an appropriate cable for SETUP mode.
