NEC UNIVERGE NEAX 2000 IPS, Общее описание устройства

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CHAPTER 2 SYSTEM CONFIGURATION
UNIVERGE NEAX 2000 IPS General Description
Page 48
Issue 5
Conditions for Link Down Notice
•
Link Down Notice is available only for Dterm and DtermIP accommodated in Main Site
and Remote Site. This is not available for a single line telephone and Attendant Console.
•
For message display, Dterm/DtermIP with 24-digit or more LCD is recommended. 16-
digit LCD may not display all messages properly.
•
Notification message can be displayed regardless of idle or busy state of Dterm/DtermIP,
writing the message over the present display. After six seconds, the display returns to the
time display automatically.
•
The system detects a Link Down on the condition that UDP connection between Main
Site and Remote Site is interrupted. The Link Down is notified to the Dterm/DtermIP at
20-50 seconds (time programmable).
•
When the link between Main Site and Remote Site is interrupted, the lamp of
Dterm/DtermIP button becomes the state as shown below. Then press the button, the LCD
of the Dterm/DtermIP displays the following.
COLOR AND STATE
OF BUTTON
STATE AND
OPERATION
LCD DISPLAY
Red/Flashing
(Momentarily) 0.125 seconds ON-
0.125 seconds OFF Link Down occurrence -
Red/Flashing
(Slowly) 0.5 seconds ON-
0.5 seconds OFF Press the button after
Link Down occurrence Link Down to Site xx
(xx: Site No.)
Green/Flashing
(Intermittently) 0.125 seconds ON-
0.125 seconds OFF-
0.125 seconds ON-
0.625 seconds OFF Remote Site is survival
mode after Link
restoration -
Green/Flashing
(Intermittently) 0.125 seconds ON-
0.125 seconds OFF-
0.125 seconds ON-
0.625 seconds OFF Press the button with
Remote Site is survival
mode after Link
restoration Link Down to Site xx
(xx: Site No.)
OFF - Remote PIM is normal
mode after Link
restoration -
OFF - Press the button with
Remote Site is normal
mode after Link
restoration Normal Condition:
R-PIM
•
Link restoration is notified to the Dterm/DtermIP at 20-50 seconds. If the time is not
set by programming, the Link restoration is notified to the Dterm/DtermIP at 110-150
seconds later from the system detects the Link Ready. After the link is ready, the
lamp of Dterm/DtermIP button keeps flashing during the Remote Site operates on
survival mode. Since the color of lamp and the indication interval changes, an
administrator at the Remote Office can changeover the system operation from
survival mode to normal remote mode according to this indication. When the link
between Main Site and Remote Site recovers and the Remote Site starts subordinate
operation to the Main Site (normal mode), the flashing lamp of the button goes out.