Diagnostics; General Description; Service Conditions - NEC NEAX 2000 IVS2 Maintenance Manual

DIAGNOSTICS

General Description

To assist maintenance personnel, this feature provides diagnostic capabilities such as fault code
generation, device status information and alarm information recording, which can be accessed
from the MAT or the CAT.

Service Conditions

(1) The following station status information can be displayed on the MAT or the CAT by direct
command:
• Idle
• Line Lockout
• Dialing
• Tone Trunk Connection (reorder tone, busy tone, service set tone, etc.)
• Types of Connection (station-to-station, three-way calling, voice calling, holding, etc.)
• Destination number (trunk number, register number)
• Short circuit on line
(2) The following trunk status information can be displayed on the MAT or the CAT by direct
command:
• Idle
• Ringing in
• Incoming queue to Attendant Console
• Holding
• In a tandem connection
• Incoming queue to UCD
• Dialing
• Receiving dialed digits
(3) The following information is stored and can be displayed on the MAT or the CAT using a
memory dump command in hexadecimal format:
• Program address where an endless loop has occurred
• Last initialization time for main program
• Last initialization time for firmware program
• The reason for initialization (power-on, RESET key, endless loop, rotary switch,
command from MAT or CAT)
(4) The PBX has a built-in patrol program that monitors the status of all connected devices.
Additionally, when no response or an invalid response from a device is received, this
program stores in memory the slot number of that device. From the MAT or the CAT, a
maintenance person can read the slot number of any device that does not respond to the
main processor or provides an illegal status to the main processor.
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NEAX2000 IVS Maintenance Manual
ND-70926 (E), Issue 3.0
CHAPTER 1 MAINTENANCE SERVICE FEATURES
Diagnostics
Page 35