User manual

CHAPTER 2 SYSTEM CONFIGURATION
Page 46 NEAX 2000 IPS General Description
NDA-24345, Issue 3
Conditions for Link Down Notice
• Link Down Notice is available only for Dterm and DtermIP accommodated in 2000 IPS and
IPSDM/IPSDMR. 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
seconds later from the time set by CM0B Y=31-60>52. If the time is not set by CM0B Y=31-
60>52, the Link Down is notified to the Dterm/DtermIP at 20-50 seconds later from the
system detects the Link Down.
• 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 seconds later from the time set by
CM0B Y=31-60>51. If the time is not set by CM0B Y=31-60>51, 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.