Cisco ONS 15454 DWDM Manual

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Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
78-17742-02
Chapter 1 General Troubleshooting
1.9 Fiber and Cabling
1.9 Fiber and Cabling
This section explains problems typically caused by cabling connectivity errors. It also includes
instructions for crimping CAT-5 cable and lists the optical fiber connectivity levels.
1.9.1 Bit Errors Appear for a Traffic Card
Symptom A traffic card has multiple bit errors.
Possible Cause Faulty cabling or low optical-line levels.
Recommended Action Bit errors on line (traffic) cards usually originate from cabling problems or low
optical-line levels. The errors can be caused by synchronization problems, especially if pointer
justification (PJ) errors are reported. Moving cards into different error-free slots will isolate the
cause. Use a test set whenever possible because the cause of the errors could be external cabling,
fiber, or external equipment connecting to the ONS 15454. Troubleshoot low optical levels using the
“1.9.2 Faulty Fiber-Optic Connections” section on page 1-54.
1.9.2 Faulty Fiber-Optic Connections
Symptom A card has multiple alarms and/or signal errors.
Possible Cause Faulty fiber-optic connections. Fiber connection problems usually occur in
conjunction with alarms.
Recommended Action Refer to the appropriate trouble-clearing procedure in Chapter 2, “Alarm
Troubleshooting.”
Possible Cause Faulty CAT-5 cables.
Recommended Action Faulty CAT-5 cables can be the source of alarms and signal errors. Complete
the “1.9.2.1 Crimp Replacement LAN Cables” section on page 1-55.
Possible Cause Faulty Gigabit Interface Converters (GBICs).
Recommended Action Faulty GBICs can be the source of alarms and signal errors. See the
“1.9.2.2 Replace Faulty SFP or XFP Connectors” section on page 1-56.
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments. Statement 272
Warning Laser radiation presents an invisible hazard, so personnel should avoid exposure to the laser beam.
Personnel must be qualified in laser safety procedures and must use proper eye protection before
working on this equipment. Statement 300

Cisco ONS 15454 DWDM Specifications

General

Chassis Type	DWDM
Form Factor	Rack-mountable
Slots	17
Storage Temperature	-40 to 158°F (-40 to 70°C)
Relative Humidity	5% to 95% non-condensing
Power Supply	AC or DC
Cooling	Internal fans
Operating Temperature	23 to 104°F (-5 to 40°C)
Altitude	0 to 6500 ft (0 to 1981 m)
Safety Compliance	EN 60950-1
EMI Compliance	FCC Part 15