Nortel Networks 6300 manual Is pressed on Setup mode and flashing when

Chapter 4 Troubleshooting Procedures

Table 4-1. Remote Annex 6300 Front Panel LEDs (continued)

LED(s)	Description
Network/	TEST - RED network TEST LED is ON when the ISDN
Status	Network Interface is looped back. Loopback tests are
Alarms	activated either locally by the user or by the telephone
(continued)	company.
	SYNC - GREEN SYNC LED is ON when the PRI interface
	is properly synchronized with the received network signal
	and is receiving proper framing information.
	LOS - RED LOS LED is ON when the PRI inteface is
	detecting no signal (pulses) on the network interface
	receiver. When a LOS condition exists, the PRI interface
	transmits unframed all one (AIS) to the network.
	ATTN - The ATTN (Attention) LED is amber and ON
	when the Remote Annex requires operator attention. The
	LED flashes when there is a problem.
	STAT - The STAT (Status) LED is green and ON after the
	Remote Annex passes the core power-up diagnostics. The
	LED flashes after resetting the Remote Annex.
	TRAF - The TRAF (Traffic) LED is green and flashing
	when the Remote Annex 6300 successfully transmits or
	receives data from the LAN.
	SETUP - The SETUP LED is green when the		button
		Reset
	is pressed ON (Setup mode) and flashing when the

Reset

button is pressed ON for 3 seconds (Reset mode).

Power	This LED is ON when the Remote Annex 6300 is
	connected to an AC power source.

If you are using an external CSU, some of the Network/Status alarm LEDs may not give true readings. In this case, defer to the status and alarm conditions indicated on the external CSU.

Remote Annex 6300 Hardware Installation Guide 4-3