JULABO CF40 Cryo-Compact Circulators - Manual (Page 28)

Electrical connections
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9. Electrical connections
Notice:
Use shielded cables only.
The shield of the connecting cable is electrically connected to the plug housing.
The unit ensures safe operation if connecting cables with a maximum length of 3
m are used. The use of longer cables does not affect proper performance of the
unit, however external interferences may have a negative impact on safe
operation.
RS232 serial interface
This port can be used to connect a computer with an RS232 cable
for remote control of the Cryo-compact circulator .
9 6
5 1
Pin assignments RS232:
Pin 2 RxD Receive Data
Pin 3 TxD Transmit Data
Pin 5 0 V Signal GND
Pin 7 RTS Request to send
Pin 8 CTS Clear to send
Pin 1; 4; 6, 9 Reserved - do not use!
Accessories:
Order No. Description
8 980 073 RS232 interface cable 9-pol./9-pol. , 2,5 m
8 900 110 USB interface adapter cable