Transmission principle
The data is transmitted from the PC to the handheld programming device or vice versa via the serial
interface COM1 or COM2�
The data is transmitted from the handheld programming device to the respective time switch via a
infrared interface or read out from the time switch by the handheld programming device�
The same method is used to transmit the switching programs from time switch to time switch�
16
IR interface
Manual programming
device
PC interface