Serial InterfaceThe basic PCB UI has a plug for serial data transmission. The electrical design corresponds with RS232 and istherefore suitable for direct connection of a PC. The software program MATRIX is available for operation,diagnosis and recording.Basic PCB UI1 – Slot X4 – Serial Interface GND T X4: 1 Ground electronic ground 1.) /TXD T X4: 2 Transmit data In accordance with RS232 (data rate 9.6 or 19.2 kBaud) +5V T X4: 3 Supply +5 V voltage source (4.75...5.25 V) max. current 50 mA /RXD T X4: 4 Receive data in accordance with RS232 GND T X4: 5 Ground electronic ground 1.) CTS T X4: 6 Clear to send in accordance with RS232 +5V T X4: 7 Supply +5 V voltage source (4.75...5.25 V) max. current 50 mA RTS T X4: 8 Ready to send in accordance with RS232 PE CASE Earth earthing point1.) Electronic ground may float up to 35 V against PE.