Nortel Networks 400 4.0, BCM200 manual DTM LEDs, MBM LED descriptions, Power Status Description

80Chapter 3 Viewing the BCM system LEDs

Figure 46 MBM LEDs

Power Status

Table 20 describes the possible MBM LED states.

Table 20 MBM LED descriptions

Power	Status	Description
Off	Off	The MBM does not have power, or there is a failure of the MBM power
		converter.
On	Off	BCM to expansion unit failure or system initialization.
On	Blinking	Hardware is working, but there is an operational problem such as:
		• no link to main unit is detected
		• frame alignment is lost on messages from the main unit
		•	bandwidth not allocated
		• MBM is in maintenance state
		• MBM is in download state (GASM, GATM4/GATM8)
Blinking	Blinking	The MBM has power, but there is a hardware problem such as:
		• partial failure of power converter
		•	thermal overload
		•	fan failure
On	On	The MBM is ready to operate.

The following MBMs have additional LEDs:

•“DTM LEDs” on page 80

•“BRIM LEDs” on page 82

DTM LEDs

The DTM has additional LEDs that are not on most other MBMs. Figure 47 shows the location of the DTM LEDs.

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