Nortel Networks 553-3001-211 manual Led, Status, Red, Yel, Maint

Page 184 of 894 NT5D11 and NT5D14 Lineside T1 Interface cards

In general, the LEDs operate as shown in Table 71.

Table 71

NT5D14AA Lineside T1 faceplate LEDs

LED	State	Definition
STATUS	On (Red)	The NT5D14AA card either failed its self-test or it
		hasn’t yet been configured in software.
	Off	The card is in an active state.
RED	On (Red)	A red alarm has been detected from the T1 link.
		(This includes, but is not limited to: not receiving a
		signal, the signal has exceeded bit error thresholds
		or frame slip thresholds.)
	Off	No red alarm exists.
YEL	On (Yellow)	A yellow alarm state has been detected from the
		terminal equipment side of the T1 link. If the terminal
		equipment detects a red alarm condition, it may
		send a yellow alarm signal to the lineside T1 card
		(this depends on whether or not your terminal
		equipment supports this feature).
	Off	No yellow alarm.
MAINT	On (Red)	The card detects whether tests are being run or that
		alarms have been disabled through the
		Man-Machine Interface. The LED will remain lit until
		these conditions are no longer detected.

Off

The lineside T1 card is fully operational.

The STATUS LED indicates that the lineside T1 card has successfully passed its self test, and is functional. When the card is installed, this LED remains lit for two to five seconds as the self-test runs. If the self-test completes successfully, the LED flashes three times and remains lit. When the card is configured and enabled in software, the LED goes out. If the LED flashes continuously, or remains weakly lit, replace the card.

553-3001-211 Standard 2.00 September 2004