JLCooper BTX Eclipse - Manual (Page 14)

Details of the RS-232 Interface Card
The RS-232 Interface is intended for operation with a host
computer. It provides the advantages of a standard interface,
which is found on many computers.
The RS-232 Interface has a male D-Sub connector. The port is
configured to communicate at 1 start bit, 8 data bits, 1 stop bit and
odd parity. Five jumpers allow the port speed to be set for 38400,
19200, 9600, 4800 and 2400 bits/sec to accommodate various
situations.
MCS-RS232 Interface Pinout
1 DCD*
2 Transmit
3 Receive
5 Ground
6 DSR*
8 CTS*
Note: These signals are at the RS-232 Interface card
* These pins are not used by the card and are
connected together for ports that require handshake.
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