Contents
iv
Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Retest the Original Cross-Connect Card 1-17
1.2.3 Perform an XC Loopback on a Destination-Node OC-N STS (West to East) Carrying an Electrical
Signal 1-18
Create the XC Loopback on a Destination-Node OCN STS 1-19
Test and Clear the XC Loopback Circuit 1-20
Test the Standby Cross-Connect Card 1-20
Retest the Original Cross-Connect Card 1-21
1.2.4 Perform a Terminal Loopback on a Destination Electrical Port (West to East) 1-22
Create the Terminal Loopback on a Destination DS-3, DS3N-12, DS3i-N-12, or EC1 Port 1-23
Test and Clear the DS-3, DS3N-12, DS3i-N-12, or EC1 Destination Port Terminal Loopback
Circuit 1-24
Create the Terminal Loopback on a Destination DS-3E or DS3XM Port 1-25
Test and Clear the DS-3E or DS3XM Destination Port Terminal Loopback Circuit 1-26
Test the Destination Electrical Card 1-27
1.2.5 Perform a Facility Loopback on a Destination-Node Electrical Port (East to West) 1-27
Create the Facility Loopback on the Destination DS-1, DS-3, DS3N-12, DS3i-N-12, or EC-1
Port 1-28
Test and Clear the DS-3, DS3N-12, DS3i-N-12, or EC-1 Port Facility Loopback Circuit 1-29
Create the Facility Loopback on the Source DS3E or DS3XM Port 1-29
Test and Clear the DS3E or DS3XM Port Facility Loopback Circuit 1-30
Test the Electrical Cabling 1-30
Test the Electrical Card 1-31
Test the EIA 1-32
1.2.6 Perform a Hairpin Test on a Destination-Node Electrical Port (East to West) 1-33
Create the Hairpin Circuit on the Destination-Node Port 1-33
Test and Delete the Electrical Hairpin Circuit 1-34
Test the Standby Cross-Connect Card 1-34
Retest the Original Cross-Connect Card 1-35
1.2.7 Perform an XC Loopback on a Source-Node OC-N STS (East to West)
Carrying an Electrical Circuit 1-36
Create the XC Loopback on the Source OC-N Port Carrying an Electrical Circuit 1-37
Test and Clear the XC Loopback Circuit 1-38
Test the Standby Cross-Connect Card 1-38
Retest the Original Cross-Connect Card 1-39
1.2.8 Perform a Terminal Loopback on a Source-Node Electrical Port (East to West) 1-40
Create the Terminal Loopback on a Source DS-1, DS-3, DS3N-12, DS3i-N-12, or EC1 Port 1-41
Test and Clear the DS-3, DS3N-12, DS3i-N-12, or EC1 Port Terminal Loopback 1-42
Create the Terminal Loopback on a Source DS3E or DS3XM Port 1-43
Test and Clear the DS3E or DS3XM Port Terminal Loopback Circuit 1-44
Test the Source Electrical Card 1-45