Electrical connections – JULABO LH 85 High Dynamic Temperature System User Manual
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Disturbances that are not indicated.
Pump motor overload protection
The pump motor is protected against overloading. After a short cooling
interval, the motor will automatically start running.
16
A
M
P
16
A
M
P
16
A
M
P
16
A
M
P
F1
F4
F2
F3
Fuses:
Mains circuit breakers (resettable).
10. Electrical connections
Important:
Use shielded cables only.
The shield of the connecting cable is electrically connected to the
plug housing.
9
6
5
1
SERIAL
RS232/RS485 serial interface (3.5)
This port can be used to connect a computer with an RS232 or RS485
cable for remote control of the temperature system.
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
A
Pin 5
0 VD
Signal GND
Pin 8
B
Pin 1; 2; 6; 7; 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