User's Manual

SATELLINE-4Pro
User Guide v0.93 DRAFT
16
4 SERIAL INTERFACE
The radio modem is referred to as DCE (Data Communication Equipment) whereas the PC is
referred to as DTE (Data Terminal Equipment). SATELLINE-4Pro includes a 8 pin ODU which
contains all the connections required to establish communication between the radio modem, acting
as the DCE, and the PC, acting as the DTE.
All EMC-requirements set forth by authorities have been taken into account in the design of the
radio modem. The radio modem user is thereby not required to take any special actions regarding
EMC-shielding (of the radio modem).
The radio modem has one serial port, Port 1 which complies with the RS-232 standard.
Signal 8-pin ODU
RD 4
TD 5
CTS 2
RTS 1
GND 3
Description of pins:
 RD = Receive Data. Output of the data received from the radio modem to the DTE.
 TD = Transmit Data. Input of the data to be transmitted from the DTE to the radio modem.
 CTS = Clear To Send.
 RTS = Request To Send.
 GND = both the negative pole of the operating voltage and the signal ground.