Power Consumption For Node And Cards; Lamp Tests For Card Leds - Cisco ONS 15454 Troubleshooting Manual
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1.11.2 Power Consumption for Node and Cards
f.
g.
h.
If multiple pieces of site equipment show signs of fluctuating power or power loss:
Step 2
a.
b.
c.
1.11.2 Power Consumption for Node and Cards
Symptom
Table 1-46
Table 1-46 Power Consumption for Node and Cards
Possible Problem
Improper power supply. Refer to power information in the Cisco ONS 15454 Reference Guide.
1.11.3 Lamp Tests for Card LEDs
The LED lamp test determines whether card-level LEDs are operational. For optical and electrical cards,
this test also causes port-level LEDs to illuminate. For all other data cards, only card-level LEDs light.
For these cards, port-level LEDs can be compared to the given guidelines to determine whether they are
working correctly.
Symptom
LEDs are working properly.
Optical and electrical port LEDs light during the lamp test. Other data card types only illuminate
card-level LEDs during the test.
and electrical cards.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-104
Verify that a rack-ground cable attaches to the frame-ground terminal (FGND) on the right side of
the ONS 15454 EIA. Connect this cable to the ground terminal according to local site practice.
Verify that the DC power source has enough capacity to carry the power load.
If the DC power source is battery-based:
Check that the output power is high enough. Power requirements range from –42 VDC to
•
–57 VDC.
•
Check the age of the batteries. Battery performance decreases with age.
Check for opens and shorts in batteries, which might affect power output.
•
If brownouts occur, the power load and fuses might be too high for the battery plant.
•
Check the uninterruptible power supply (UPS) or rectifiers that supply the equipment. Refer to the
UPS manufacturer's documentation for specific instructions.
Check for excessive power drains caused by other equipment, such as generators.
Check for excessive power demand on backup power systems or batteries when alternate power
sources are used.
You are unable to power up a node or the cards in a node.
describes the possible problem and the solution.
Solution
Optical (OC-N) or electrical (DS-N) card LEDs do not light, or you are unsure whether the
Table 1-47
describes the possible problem and the solution for optical
Chapter 1
General Troubleshooting
November 2004
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Troubleshooting
