Sennheiser ADN instruction manual System analysis Diagnostics submenu, Display Meaning and causes

Configuring the conference system via the central unit

System analysis – “Diagnostics” submenu

Main Menu	System	Diagnostics
Conference	Ports	System Load
Audio	Diagnostics	Temperature
System	Versions	Bus Statistics
	No	No

Select and call up the “System” submenu

Select and call up the	The “Diagnostics”
“Diagnostics” submenu	submenu appears

Displaying status information on the current and voltage supply – “System Load”

The “Diagnostics” menu item provides information on the status of the current and voltage supply, on the status of data transmission and on interruptions due to faulty cables or cable connections.

	Diagnostics	Load
Main Menu	System Load		Current	Voltage
System	Temperature	Port 1	☺
Diagnostics	Bus Statistics	Port 2		– –

		No		No
Select and call up the	Select and call up the		View the information;
“Diagnostics” submenu	“Load” menu item		exit the menu item

Both ports can be subjected to undervoltages, overcurrents and short-circuits:

Display	Meaning and causes
Current	An overcurrent in the central unit can be caused by
	• metal parts (e.g. paper clips) that bridge the contacts of the plug
		connections
	•	faulty conference units
	•	faulty system cables
	• too long system cables
	• too many conference units connected to one port
Voltage	An undervoltage can be caused by
	•	faulty conference units
	• too long system cables
	• too many conference units connected to one port
Current	A short-circuit in the central unit can be caused by e.g.
	• metal parts (e.g. paper clips) that bridge the contacts of the plug
		connections
	•	faulty system cables
	• wrong cables (e.g. crossover cables)
Voltage	The port is deactivated due to e.g.

--• no conference units connected

• a short-circuit

If an error icon appears (see page 34), check your conference system for the errors mentioned above.

If an error is detected at startup of the central unit, first eliminate the error and then perform a manual self-test(see page 40) in order to check if the error still occurs.

If an error has only occured during operation and has already been elim- inated, this is automatically detected by the central unit.

Possible steps for error elimination:

•Eliminate the errors separately for each port.

•Calculate the maximum length of the cable string (see page 13) and, if neces- sary, reduce the cable length.

•Reduce the number of conference units to 15-20 max. per cable string.

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