Chapter 1 – Product Overview
RS232 9-Pin Functions of the Female End Connector
The following table explains the pin functions.
External Power
Signal
Pin 1 CD
Pin 2 RX
Pin 3 TX
Pin 4 DTR
Pin 5 GND
Pin 6 DSR*
Pin 7 RTS
Pin 8 CTS
Pin 9 RI
Note:
The DSR signal on pin 6 is always asserted by the router.
MultiModem rCell User Guide
IN/OUT
O
O
I
I
--
O
I
O
O
Serial Cable
Female Connector
25
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