COMSPHERE DualFlow Data Service Units
Displaying External Leads
The Display (Displ) selection allows you to view the external lead states. When Display is selected, the External Leads status report appears showing the current status of the
Changing External Leads
The Change (Chang) selection allows you to change the state of the two output leads (for example, to change a lead to signal a console operator or to reset a remote computer). Leads can be changed from the NMS.
After the leads are set, press the F2 key to save the leads in the specified state.
Reporting External Lead Changes to NMS
Changing either the output leads or the input leads changes the DSU's health and status message.
If the DSU is polled by the NMS, the NMS reports a change configuration notification (CCN) event. The NMS operator can then issue a CCN Display command to determine what caused the event.
•If the event was caused the state of the external leads, select Displ (F1) to see the current states of the leads.
•If a positive (+) voltage is detected in either one of the input leads, an external leads alarm is also reported.
Message Branch
The Messages (Msgs) branch of the
To receive messages:
.Procedure
1.Press the F3 key (Msgs).
2.Select Read (F1).
3.If the message is less than 16 characters in length, the entire message is displayed.
If the message is greater than 16 characters, press
the 
key to scroll additional lines of the message onto the screen.
To clear (delete) messages:
.Procedure
1.Press the F3 key (Msgs).
2.Select Clear (F2).
The message is deleted, and Msgs no longer appears over the F3 key.
December 1996 |
