User`s manual

NexSens Technology, Inc.
iSIC User‟s Manual 57
2.10.2 DB9 Connector Wiring
In the center of every iSIC data logger, between the analog and digital terminal strips, a DB9
connector for RS232 connection is available. This is the primary connection for iSIC data loggers
and allows a PC to connect directly to the iSIC.
Every iSIC includes an A72 iSIC communication cable which allows for connecting an iSIC
directly to the PC.
DB9 Signal Output
Pin 1
RS232 DTR/RTS
Pin 2
RS232 Transmit
Pin 3
RS232 Recieve
Pin 4
RS232 CD/CTS
Pin 5
Ground
Pin 6
RS485A
Pin 7
Not Connected
Pin 8
RS485B
Pin 9
+3.3V/+5V