Carrier Access Access Navigator - Manual (Page 336)

14-16 August 2003 Access Navigator - Release 1.8
Alarm Clearing
Power Status LEDs
Power Status LEDs
The Access Navigator may have one or two Controller cards. Each Controller card has a Power LED
indicator showing the status of the -48 VDC input power as well as the status of the card’s internal
power supply.
Table 14-9. Power Status LEDs
LED State Description Troubleshooting
Green Normal operation Normal operation.
Off -48V power failure or power
missing Check -48V input to unit. Input voltage
must be between -42 and -60 V.
Red Internal power supply failure Power supply is located on Controller
card. Replace suspect Controller card (A
or B) with known good card. Cards can
be replaced with power on.
Yellow Card is booting up after reset
or power-on. If a software upgrade to version 1.20 or
higher is performed on a standby
Controller without a SIMM installed, the
Controller’s POWER indicator will
remain yellow until the required SIMM is
installed