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Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter 2 Alarm Troubleshooting
Alarm Procedures
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.
Procedure: Clear the TRMT Alarm
Step 1 Complete the “Physically Replace a Card” procedure on page 2-130 for the reporting XTC-14 card.
Note When replacing a card with an identical type of card, no additional CTC provisioning is
required.
Step 2 If the alarm does not clear, call the Technical Assistance Center (TAC) at (1-800-553-2447) to discuss
the failed card and possibly open a returned materials authorization (RMA).
2.6.185 TRMT-MISS
• Major (MJ), Service Affecting (SA)
A Facility Termination Equipment Transmitter Missing (TRMT-MISS) alarm occurs when the facility
termination equipment detects an incorrect amount of impedance on its connector. Incorrect impedance
is detected when a transmit cable is missing on the XTC-14 does not match the inserted card; for
example, an SMB connector or a BNC connector connects to an XTC-14 card instead of an XTC-28-3
card.
Warning
Invisible laser radiation might 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 might pose an eye hazard. Use of controls or adjustments or performance of procedures other than
those specified might result in hazardous radiation exposure.
Note DS-1s are four-wire circuits and need a positive and negative connection for both transmit and receive.
Procedure: Clear the TRMT-MISS Alarm
Step 1 Verify that the device attached to the XTC-14 port is operational.
Step 2 If the device is operational, verify that the cabling is securely connected.
Step 3 If the cabling is secure, verify that the pinouts are correct.
Step 4 If the pinouts are correct, replace the transmit cable.
Step 5 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC to report
a service-affecting problem (1-800-553-2447).