User's Manual

3. Press 0 (zero) to display the current debug settings.
4. Press 3 and 4 to switch on the monitors. See Figure 225: Current Driver Debug Flag
Settings menu on page 333
.
Figure 225: Current Driver Debug Flag Settings menu
5. Press 0 (zero) to display the debug settings again. See Figure 226: DS30 and IPC
monitors ON on page 333
.
Figure 226: DS30 and IPC monitors ON
Messages on an idle system
IPC interface
After switching on the monitors, it is normal to see ping/pong (Hello messaging) messages on
the IPC monitor between the BCU and CCU.
Hello messaging is used to detect errors on the BCU to CCU communication interface.
The
BCU and CCU are not synchronized with one another. They send Hello messages
asynchronously, and there is no acknowledge. On receipt of a Hello message, the receiving
unit resets the timer for the receipt of the next Hello message. On sending a Hello message,
Messages on an idle system
DMC DECT Fundamentals August 2012 333