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Gebrauchsanleitung Durchsicht-Thermostate CT 53 CT 53 TT CT 53 ...

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Electrical connections<br />

24. Electrical connections<br />

Connection of flow-through cooler CK 300<br />

The flow-through cooler CK 300 is connected to pins 1 and 3. For the<br />

connection use the shielded control cable supplied with the cooler.<br />

Circuit: Operation = relay powered<br />

Alarm = relay not powered<br />

Pin assignment:<br />

Pin 1: +24 V ( max. current 25 mA)<br />

Pin 2: 0 V<br />

Pin 3: Alarm relay<br />

Pin 4: Reserved - do not use!<br />

Pin 5: Cooling pulse<br />

RS 232 C<br />

RS232C serial interface<br />

This port can be used to connect a computer with an RS232C cable<br />

for remote control of the circulator.<br />

Pin assignments:<br />

Pin 2 RxD Receive Data<br />

Pin 3 TxD Transmit Data<br />

Pin 5 0 VD Signal GND<br />

Pin 6 DTR Data terminal ready<br />

Pin 7 RTS Request to send<br />

Pin 8 <strong>CT</strong>S Clear to send<br />

Interface correspondence:<br />

Circulator<br />

Computer<br />

(9-pole, male)<br />

(25-pole, female)<br />

Pin 2 RxD Pin 2 TxD<br />

Pin 3 TxD Pin 3 RxD<br />

Pin 5 GND Pin 7 GND<br />

Pin 6 DTR Pin 6 DSR<br />

Pin 7 RTS Pin 5 <strong>CT</strong>S<br />

Pin 8 <strong>CT</strong>S Pin 4 RTS<br />

<br />

Use shielded cables only.

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