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Appendix D – Port & Cable Pinouts
44 DL™ User Manual Rev 3
NULL-MODEM SERIAL CABLE
Figure 12: Null-Modem Serial Cable - Illustration
Reference Description Reference Description
1 Brown 8 Violet
2 Black 9 Grey
3 Red 10 White
4 Orange 11 Red marker at top of connector
5 Yellow 12 Male LEMO 10 pin plug
6 Green 13 DE9S (female)
7 Blue 14 10-conductor cable
Table 13: Null-Modem Cable - Pin Assignment
LEMO Pin No. RS232C Signal
COM1
RS232C Signal
COM2
Wire Color Code DE9S Pin No.
Pin 1 DCD DCD Brown Pin 4
Pin 2 RXD RXD Black Pin 3
Pin 3 TXD TXD Red Pin 2
Pin 4 DTR GND Orange Pin 6
Pin 5 GND GND Yellow Pin 5
Pin 6 DSR DSR Green Pin 4
Pin 7 RTS RTS Blue Pin 8
Pin 8 CTS CTS Violet Pin 7
Pin 9 NULL BAT Grey Pin 9
Pin 10 White (Not used) Pin 1 jumpered to Pin 6