Nortel Networks BCM200 Viewing the BCM system LEDs, Base function tray system status display LEDs

Chapter 3 Viewing the BCM system LEDs 77

Chapter 3

Viewing the BCM system LEDs

Refer to the following sections for information on the BCM system LEDs:

•“Base function tray system status display LEDs”

•“Media bay module LEDs” on page 79

Base function tray system status display LEDs

A line of 10 LEDs displays on the base function tray faceplate of the BCM main unit (see Figure 45 and Table 18). The LEDs show the current state of various hardware components. Element Manager contains a monitoring tool that allows you to determine the current condition of the LEDs from your computer.

Figure 45 BCM base function tray system status LEDs

Red or Green			WAN	LAN 1
Power	Disk	Status	MSC	Modem	LAN 2	Temp	Fan

Table 18 summarizes the possible operating states of the LEDs on the front of the base function tray. The BCM expansion unit has both a power and a status LED, which provide the same indicators as for the base function tray.

Table 18 Base function tray system status LED states (Sheet 1 of 3)

LED	Description	LED states
Power	Indicates the status of all power components.	Green ON – normal operation
	The Power LED is used with the Status LED to show
	startup conditions (see Table 19).	Red ON – an excessive voltage deficiency or a
	An LED that monitors a component will also show a	component failure (such as a redundant power
	fault in combination with the Power LED.	supply module)
Disk	Indicates access to the system hard disk.	Green ON – hard disk activity detected
		This LED lights when the HDD is accessed. If the
		systems does not need to read or write to the HDD
		the LED is off.

BCM200/400 4.0 Installation and Maintenance Guide