Electrical Connections - Xylem SI Analytics CT 72/2 Manual De Instrucciones

9.

Electrical connections

Notice
5 1
9 6
RS232C
2
4
5
1 3
Electrical connections
Use shielded cables only.
The shield of the connecting cable is electrically connected to the plug housing.
RS232 serial interface
This port can be used to connect a computer with an RS232 cable for remote
control of the circulator.
Beschaltung:
Pin 2
Pin 3
Pin 5
Pin 7
Pin 8
Pin 1; 4; 6, 9 reserved - do not use!
Schnittstellen-Verbindungskabel RS232:
CT72 (9pol)
Pin 2 RxD
Pin 3 TxD
Pin 5 GND
Pin 7 RTS
Pin 8 CTS
Connection of flow-through cooler CK300 / CK310
The flow-through cooler CK300 / CK310 is connected to pins 1 and 3. For the
connection use the shielded control cable supplied with the cooler.
Circuit:
Pin assignment:
Pin Signal
1 +24 V (I max. current 25 mA)
2
3 Alarm relay
4 Reserved - do not use!
5 Cooling pulse
RxD
TxD
0 V
RTS
CTS
⇔
⇔
⇔
⇔
⇔
Operation = relay powered
Alarm = relay not powered
0 V
96
Receive Data
Transmit Data
Signal GND
Request to send
Clear to send
PC (9pol
Pin 3 TxD
Pin 2 RxD
Pin 5 GND
Pin 8 CTS
Pin 7 RTS