Toa N-8000 Series User Manual
Page 107
1-90
Chapter 1
GENERAL DESCRIPTION
11.4.4. Paging busy input
Busy status data from an airport broadcast system or similar large sound systems can be received when the
N-8000MI is interlocked with such systems, allowing important information to be accurately transmitted.
N-8000MI
Busy signal
Audio signal
Large airport broadcast
system, etc.
11.4.5. System diagnosis
The N-8000MI/8000DI/8000AF diagnoses the system condition, and provides its results at the contact output
terminal as open or closed contact. The system diagnosis is performed in a way that the N-8000MI/8000DI/8000AF
connects the target equipment via the network.
The contact output terminal is closed only when an abnormality has been detected.
Thereafter, its closed terminal opens when the N-8000MI/8000DI/8000AF judges the condition to be normal.
This function aims to diagnose the exchange's line status and the network status of the connected equipment.
Note
Diagnosis is performed at the set time intervals*. Therefore, the diagnosis results are not obtained in real time.
The system condition, even if a change occurs, cannot be detected in the intervals from a diagnosis to the next
diagnosis.
* Diagnosis results are renewed every 20 seconds or less.
N-8000MI/8000DI/8000AF
I
M
0
0
0
8
-
N
X
E
0
1
0
8
-
N
X
E
0
0
0
8
-
N
Contact outputs
Network
11.4.3. Contact bridge function (external contact interlock)
Contact signals can be transmitted by way of a network.
N-8000MI/8000DI
N-8640DS
N-8000MI/8000DI
LAN
Contact input
Contact output
N-8050DS
Contact output
N-8000EX/8010EX
Contact output