Technical Information
How to Connect the Open Collector Inputs of the Controller
Signal characteristics and use
PIN N. SIGNAL NAME
1 +5 V (OUT)
2 TX (RS232)
3 RX (RS232)
4 A+ (RS422 Optional)
6 A + (RS485)
7 B - (RS422 Optional)
8 B - (RS485)
9 RESERVED
NOTE
Note that the vent valve can also be controlled by means of the serial
connection
A serial communication kit with a serial cable and the T-Plus
software is available (optional).
TwisTorr 304 FS on board Controller User Manual / 87-901-028-01 (C) 159/178