NEC ND-71762(E) system manual Relationship between System Messages and Lamp Indications, Name, Pwr

MAINTENANCE PROCEDURE

2.1 The Relationship between System Messages and Lamp Indications

When the system has detected a fault, the corresponding system message is displayed, at the same time, the related lamp on the TOPU.

Table 8-1 shows the relationship between system messages and default lamp indications.

Table 8-1 System Messages and Lamp Indications on TOPU

		SYSTEM MESSAGE		LAMP ON THE TOPU
No.		NAME	MJ		MN	SUP	PWR
13-A		CCH Clock Failure				⋅
13-B		CCH C-Level Infinite Loop				⋅
		(Permanent)
13-C		CCH C-Level Infinite Loop (Temporary)				⋅
13-D		CCH Lock Up Failure				⋅
		(Permanent)
13-E		CCH Lock Up Failure				⋅
		(Temporary)
13-F		CCH B-Level Infinite Loop				⋅
		(Permanent)
13-G		CCH B-Level Infinite Loop (Temporary)				⋅
13-H		CCS Link Failure (Permanent)				⋅
13-I		CCS Link Failure (Temporary)
13-J		Restoration from CCS Link
		Failure
13-K		CCH Reset Interrupt Failure				⋅
17-A		CCH MBR Key Turn ON
17-B		CCH MBR Key Turn OFF
Note:	⋅: Default Lamp Indication.

ND-71762 (E)CHAPTER 8

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