Fujitsu BS2000 SE Series Operating Manual page 76

Rear of the HNC
Figure 42: ID/CSS/Global error indicator (HNC M2)
1 ID/CSS/Global error indicator
ID
CSS
76
ID indicator (blue)
Lights up blue when the HNC has been selected by pressing the ID button. To
deactivate, press the button again.
CSS and Global error indicator (yellow/orange)
Generally, the states of these indicators have the following meanings:
– Do not light up when the HNC is OK.
– If the event is still acute after a power failure, the indicator is activated after
the restart.
– Light up when a prefailure event was detected. The indicator also lights
up in standby mode.
– Flash when an error was detected. The indicator also flashes in standby
mode.
Irrespective of the color, when an indicator lights up or flashes this indicates
an error event. Please notify customer support.
HNC (High Speed Net Connect)
U41859-J-Z126-2-76