JULABO CF41 Cryo-Compact Circulators - Manual (Page 66)

Electrical connections
66
10. 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.
9 6
5 1
SERIAL
RS232/RS485 serial interface
This port can be used to connect a computer with an RS232 or RS485 cable
for remote control of the Cryo-Compact Circulator .
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!
Pin assignments RS485:
Pin 3
B
Pin 5 0 V Signal GND
Pin 6 +5 V (50 mA max. load current)
Pin 8 A
Pins 1; 2; 7; 9 are reserved - do not use!
Notice: RS485 serial interface
The max. load current between Pin 5 and Pin 6 is 50 mA.
Accessories:
Order No. Description
8 980 073 RS232 interface cable 9-pol./9-pol. , 2,5 m
8 900 110 USB interface adapter cable