Rs-Eoc; Clear The Rs-Eoc Alarm - Cisco ONS 15600 SDH Troubleshooting Manual

2.6.172 RS-EOC

2.6.172 RS-EOC
The SDH Data Communications Channel (DCC) Termination Failure alarm occurs when the
ONS 15600 SDH loses its data communications channel. Although this alarm is primarily SDH, it can
apply to DWDM. For example, the OSCM card can raise this alarm on its STM-1 section overhead.
The RS-DCC consists of three bytes, D1 through D3, in the SDH overhead. The bytes convey
information about operation, administration, maintenance, and provisioning (OAM&P). The
ONS 15600 SDH uses the DCC on the SDH section overhead to communicate network management
information.
Class 1 laser product. Statement 1008
Warning
Warning Class 1M laser radiation when open. Do not view directly with optical instruments. Statement 1053
Warning On the OC192 LR/STM64 LH 1550 card, 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
Invisible laser radiation could be emitted from the end of the unterminated fiber cable or connector.
Warning
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
Use of controls, adjustments, or performing procedures other than those specified could result in
Warning
hazardous radiation exposure. Statement 1057
If a circuit shows an incomplete state when this alarm is raised, the logical circuit is in place. The circuit
Note
is able to carry traffic when the connection issue is resolved. You do not need to delete the circuit when
troubleshooting this alarm.
For information about DWDM cards, refer to the Cisco ONS 15454 DWDM Reference Manual.
Note

Clear the RS-EOC Alarm

If the
Step 1
procedure on page
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
2-108
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SDH Logical Objects: STMN
DWDM Logical Object: TRUNK
"LOS (STMN)" alarm on page 2-86
2-86.
is also reported, complete the
Chapter 2 Alarm Troubleshooting
"Clear the LOS (STMN) Alarm"
July 2010