Radio Interface
6
SRL-35 Operator’s Manual
P/N: 1003224-01
• • • • • •
Radio Interface
The SRL-35 radio has three interfaces; Communication, User, and RF, and the Power connection. The power
connector on SRL-35 is a 4-pin mini style ODU connector. This chapter describes three interfaces available on
the SRL-35 in detail.
Figure 2: Radio Interfaces
Serial Interface
The radio modem is referred to as DCE (Data Communication Equipment) whereas the PC is referred to as DTE
(Data Terminal Equipment). The SRL-35 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.
Description of Pins:
•
RX
=
Output of the data received from the radio modem to the DTE.
•
TX
=
Input of the data to be transmitted from the DTE to the radio modem.
•
CTS
=
C
lear
T
o
S
end.
User Interface
Power Connector
Communication Interface
RF Connector
(Not Shown in Photo)
Table 8. 8-pin ODU Pinouts
Signal
8-pin ODU
RX
4
TX
5
CTS
2
RTS
1
GND
3
MODE
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