This PT2002-A1 'PACE-Bus' (RS232) interface can be used to connect control panels or for diagnosis.

'PACE-Bus' (RS232) connector - 'CN4'

PT2002-A1 'PACE-Bus' (RS232) connector - 'CN4'

Pin

Description

Remark

1

TX

Send RS232 data

2

RX

Receive RS232 data

3

GND

GND reference voltage