A.2. COM2
A.2 COM2
This 7-pin connector provides access to the second serial port (COM2). The receiver behaves
as Data Terminal Equipment (DTE).
PIN #
Description
1
+
5V DC output (not designed to power external equipment - max
200mA)
2
Signal ground (GND)
3
Clear To Send (CTS - input)
4
Request To Send (RTS - output)
5
Receive Data (RXD - input to the receiver)
6
Transmit Data (TXD - output from the receiver)
7
Not connected
A.3 COM3-4/USB
This 7-pin connector can be con
fi
gured in two modes:
•
COM3 and COM4
•
USB device
The electrical level at pin#7 de
fi
nes the operating mode.
COM3-4 device
This mode is selected by leaving pin#7 unconnected.
PIN #
Description
1
Not connected
2
GND
3
COM4 RX
4
COM4 TX
5
COM3 RX
6
COM3 TX
7
Leave unconnected
77
Содержание PolaRx5
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