Nortel Networks 400 4.0 User Manual

Chapter 19 System monitoring and troubleshooting

N0060612

N0060612

The LEDs on the BCM base function tray are part of the system status display (SSD) board. 

 shows an interior view of the base function tray and the SSD board location. 

Figure 99   SSD board connections

 shows what the LEDs look like on the outside of the base function tray. The labels in 

the illustration indicate the hardware that each LED supports.

PCI Riser 
card 
connectors

Modem 
card

Main card

DIMM 
connectors

I/O card 
connector

BIOS 
battery

Main card 
connector

SSD board

SSD Main 
card 
connector

System status display board mounting 
screws