NEC NEAX 2000 specifications Alarm Indications

ALARM INDICATIONS

ALARM INDICATIONS

General Description

Faults are indicated by the Major/Minor (MJ/MN) lamps located on the AC/DC Power Supply and, optionally, an external alarm display unit.

Station Application

Not applicable.

Operating Procedure

No manual operation is required.

Service Conditions

1.The following table shows a standard pattern of the faults that can be detected and their alarm indications. If required, the following alarm indications (MJ, MN, or no indication) can be changed on an individual fault basis. Refer to the Maintenance Manual for more information.

			Alarm Indications
	AC-DC Power		External Alarm		Multiline Terminal
	(PZ-PW121)		Display		Alarm
Contents of Alarm
	MJ	MN	MJ	MN	MJ	MN
System Initialization	X	X	X	X	—	—
Number of stack overflows was more than a fixed number	X	X	X	X	X Note 2	X Note 2
MP - FP/AP communication failure	X	X	X	X	X Note 2	X Note 2
FP/AP down	X	X	X	X	X Note 2	X Note 2
DTI line failure	X	X	X	X	X Note 2	X Note 2
DCH link failure	X	X	X	X	X Note 2	X Note 2
CCH link failure	X	X	X	X	X Note 2	X Note 2
Number of lockout stations was more than a fixed number	X	X	X	X	X Note 2	X Note 2
SMDR output buffer memory overflow	X	X	X	X	X Note 2	X Note 2
DLC failure	X	X	X	X	X Note 2	X Note 2
AC/DC power supply (PZ-PW121) Note 1
• AC input down	X	X	X	X	X Note 2	X Note 2
• DC output down (+5V, –27V)	X	X	X	X	X Note 2	X Note 2
• Fuse blown (+5V, –27V)	X	X	X	X	X Note 2	X Note 2
Alarm for pre-determined time	X	X	X	X	X	X

Note 1: MJ ALARM is always displayed for power failure regardless of programming.

Note 2: When FP/DLC, which accommodates the Multiline Terminal, becomes unusual, Alarm Indications cannot be displayed.

NEAX2000 IVS2
Business/Hotel/Data Features and Specifications	Page 5
NDA-24271, Issue 1.0