Eoc-L - Cisco NCS 2000 series Troubleshooting Manual

Alarm Troubleshooting
e) Click Yes in the Confirmation Dialog box.
Step 12
Recreate the SDCC termination.
Step 13 Verify that both ends of the DCC have been recreated at the optical ports.
If the alarm has not cleared, call Cisco TAC (1 800 553-2447). If the Cisco TAC technician tells you to reseat the card,
If the Cisco TAC technician tells you to reseat the card, complete the "Reset an Active Control Card and Activate the
Standby Card" procedure. If the Cisco TAC technician tells you to remove the card and reinstall a new one, follow the
"Physically Replace a Card" procedure.
Warning High-performance devices on this card can get hot during operation. To remove the card, hold it by
the faceplate and bottom edge. Allow the card to cool before touching any other part of it or before
placing it in an antistatic bag. Statement 201
OSC ports in TNCP and TNCS cards might have the EOC-E alarm. Follow this procedure to clear the EOC-E alarm.
1. If you want to connect SFP ports with far end OTDR ports, use 1518 nm OSC SFP. For example, use the
ONS-SC-OSC-18.0 SFP. Otherwise, OSC might not work as expected.
2. If you want to connect SFP OSC to SFP OSC ports, set proper Rx/Tx power values in both ends using optical
attenuators. If SFP GREEN LED in both ends glow and EOC-E alarm is not still cleared, adjust the power values
using attenuators until the EOC-E alarm clears.
3. Ensure to use same wavelength SFPs in both near end and far end. 1518 nm OSC SFP will not work with other
wavelength SFPs.

EOC-L

Default Severity: Minor (MN), Non-Service-Affecting (NSA) for OCN/STMN
Logical Object: TRUNK
The Line DCC (LDCC) Termination Failure alarm occurs when the ONS system loses its line data
communications channel (LDCC) termination. EOC-L is not supported on OSCM or TNC/TNC-E cards.
The LDCC consists of nine bytes, D4 through D12, in the SONET overhead. The bytes convey information
about OAM&P. The NCS system uses the LDCCs on the SONET line layer to communicate network
management information.
Warning
The laser is on when the card is booted and the safety key is in the on position (labeled 1). The port does
not have to be in service for the laser to be on. The laser is off when the safety key is off (labeled 0).
Statement 293
Warning
Invisible laser radiation could be emitted from the end of the unterminated fiber cable or connector.
Do not stare into the beam directly with optical instruments. Viewing the laser output with certain
optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of 100 mm
could pose an eye hazard. Statement 1056
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
EOC-L
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