ADTRAN 25 manual S T E M User-Reported

RUN R U N

S T A T I O N T R U N K T E S T ( S ) TEST (S)

SEQUENCE SEQUENCE

TYPE OF TROUBLE INDICATED

BY THE LEDS AND ERROR LOG

MAINTENANCE

S Y S T E M			USER-REPORTED
T R O U B L E
REPORTED
		ALARM
	CAP
	REPORTED		CAP ALARMED

DISCUSS THE TROUBLE WITH SYSTEM USERS

READ PERMANENT SYSTEM ALARMS TABLE IN ERROR

L O G :

A N D C H E C K CIRCUIT BOARDS AND POWER LED STATUS

SYSTEM OR CANNOT
				READ (1) PERMANENT SYSTEM
ACCESS	ERROR LOG	DEFECTIVE
				A L A R M S ,		( 2 ) T R A N S I E N T
		P O W E R		SYSTEM		ERRORS TABLE,
		S U P P L Y		AND/OR (3) MOST RECENT
C H E C K	P O W E R
L E D A N D F A N S				SYSTEM ERRORS IN TABLE
					E R R O R L O G ;
				A N D C H E C K C I R C U I T
C P U / M E M O R Y			REPLACE	BOARDS AND POWER SUPPLY
CIRCUIT	FRONTPLANE/		POWER
					LED	STATUS
BACKPLANE DIAGNOSTIC			SUPPLY

PORTS

				ERROR LOG CONFIRMS
				USER-REPORTED TROUBLE
						NO ERROR LOG
P O W E R	C P U / M E M O R Y
						RESULTS
S U P P L Y	SERVICE CIRCUIT
CABINET	F R O N T P L A N E /	RECREATE USER-REPORTED TROUBLE
OR FANS	B A C K P L A N E		S T A T I O N S		T R U N K S O T H E R
	D I A G N O S T I C

I S O L A T E T R O U B L E T O REPLACEABLE MAINTENANCE UNIT (SEE TEXT)

( D E P E N D I N G

O N P R O B L E M , SEVERITY) FIRST. WARM START . IF

PROBLEM PERSISTS R E S T O R E

TRANSLATIONS F R O M T A P E . I F PROBLEM PERSISTS

ESCALATE .

Figure 4-1. Response to System 25 Trouble Report

4-10