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
1.2.6 Perform a Terminal Loopback on a Destination-Node MXP or TXP Port
Step 5 Clear the facility loopback on the port:
a. Click the Maintenance > Loopback tabs.
b. Choose None from the Loopback Type column for the port being tested.
c. Choose the appropriate state to place the port in service, out of service and disabled, out of service
for maintenance, or automatically in service from the Admin State column for the port being tested.
d. Click Apply.
e. Click Yes in the confirmation dialog box.
Step 6 Complete the “1.2.6 Perform a Terminal Loopback on a Destination-Node MXP or TXP Port”
procedure on page 1-21.
1.2.6 Perform a Terminal Loopback on a Destination-Node MXP or TXP Port
The terminal loopback at the destination-node port is the final local hardware error elimination in the
circuit troubleshooting process. If this test is completed successfully, you have verified that the circuit
is good up to the destination port. The example in Figure 1-8 shows a terminal loopback on an
destination node TXP port.
Figure 1-8 Terminal Loopback on a Destination-Node MXP or TXP Port
Caution Performing a loopback on an in-service circuit is service-affecting.
Note Terminal loopbacks require on-site personnel.
Complete the “Create the Terminal Loopback on a Destination-Node MXP or TXP Port” procedure on
page 1-22.
Destination
ONS Node
TXP
Source
ONS Node
Intermediate
ONS Node
TXPTXP TXPTXP TXP
145759
Regenerate
Te st Set
Client port

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