Quatech RS-232 - Manual (Page 34)

The ESC(LP)-100 is a DTE device which connects to peripheral
equipment through an adapter cable’s eight male D-9 connectors. The
standard serial port connections are listed in Figure 15.
6 5 GND
2 9 RI
10 1 DCD
5 6 DSR
7 4 DTR
3 8 CTS
4 7 RTS
9 2 RxD
8 3 TxD
RJ-45 D-9
RS-232
Signal
Figure 15 --- ESC(LP)-100 D-9 connector pinouts
Figure 16 --- ESC(LP)-100 RJ-45 connector pinouts
ESC(LP)-100 User's Manual 28