Product Info

LED indicator conditions
DN9913495 © Nokia Corporation Draft 49 (52)
Issue 3-0 en Nokia Proprietary and Confidential
7.4 Power supply unit LED
The condition of the power supply unit’s LED indicators are specified in Table 7.
7.5 Fan unit LED
The conditions for the fan unit’s LED indicators are specified in Table 8.
Table 6. LED conditions for an interface unit
LED colour Indication
Green OCXO operating
Yellow OCXO warming up
Red OCXO broken
Table 7. LED conditions of the power supply unit
LED colour Condition
Green Unit operating
Yellow 1. Output voltage OK, switch on the power supply
unit is in the ON position, BTS in cold start mode
2. Power shut down signal sent from the
BSC/NMS
3. Output voltage OFF because of a detected
overtemperature
Red Unit broken or short circuit in one of the BTS’s
units
Flashing yellow Input voltage OK, switch the power supply unit to
the stand-by position