Brocade Communications Systems Brocade VDX 8770-4 - Manual (Page 63)

Brocade VDX 8770-4 Hardware Reference Manual 43
53-1002563-02
Determining the status of a power supply
4
FIGURE 9 Power supply
For absent or faulty indications, if the power supply is not improperly seated, contact the Brocade
VDX 8770-4 supplier to order replacement parts. You may also want to do this if the indication is
predicting failure.
Table 13 describes the power supply LED patterns and the recommended actions for those
patterns.
1 AC power input LED (AC OK) 3 Alarm LED (ALM)
2 DC power output LED (DC OK)
TABLE 12 Output for show environment power command
Output Explanation
OK Power supply is functioning correctly.
absent Power supply is not present. Could also be
improperly seated.
unknown Unknown power supply unit installed.
predicting failure Power supply is present but predicting failure.
faulty Power supply is present but faulty (no power cable,
power switch turned off, fuse blown, or other
internal error). Could also be improperly seated.
TABLE 13 Power supply LED descriptions
LED purpose Color Status Recommended action
AC OK No light
(LED is off) Power supply does not have
incoming AC power. If using AC power, ensure that the
power supply is firmly seated, the
AC power source is live, and the
power cable is connected.
Steady green Power supply has incoming AC
power. No action required.
DC OK No light
(LED is off) The DC output is not in the
acceptable range. Ensure that the power supply is
firmly seated.
Steady green The DC output is in the
acceptable range. No action required.
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