Overhead Circuits
(Network view only) The Overhead Circuits tab allows you to view information about overhead circuits on the network. Overhead circuits include DCC and IP tunnels, user data channels, and local and express orderwire (orderwire circuits require Alarm Interface Controller–International [AIC-I] cards). You can also create, delete, edit, and merge overhead circuits.
 
Item
Description
Circuit Name
Displays the name of the circuit. You can edit the name by double-clicking the name, which opens the Edit Circuit window.
Type
Displays the circuit type. For information on overheard circuit types, see Overhead Circuit Types.
Status
Displays the status of the circuit. For information on overheard circuit status, see Overhead Circuit Statuses.
Source
Displays the circuit source in the format: node/slot/port “port name”/STS/VT. (Port name appears in quotes.) Node and slot is displayed; port “port name”/STS/VT is displayed, depending on the source card, circuit type, and name assigned to the port. If the circuit size is concatenated (3c, 6c, 12c, and so on.), STSs used in the circuit are displayed as ellipses; for example, “S7..9,” (STSs 7, 8, and 9) or S10..12 (STS 10, 11, and 12).
Note the following:
 •
If the port is on an ONS 15600 Any Service, Any Port (ASAP) card, the port format is pluggable interface module (PIM)-pluggable port module (PPM)-port number.
 •
If the port is on an ONS 15454 MRC-12 card, the port format is PPM-port number.
 •
Destination
Displays the circuit destination in same format as the circuit source.
Spans
Displays the number of internode links that constitute the circuit. Right-clicking the column displays a shortcut menu from which you can choose to show or hide circuit span detail.
Create
Displays the Overhead Circuit Creation wizard, to create a new overhead circuit.
Edit
Displays the Edit Overhead Circuit dialog box, to edit the overhead circuit that is highlighted.
Delete
Deletes the overhead circuit that is highlighted.
Merge
Merges multiple orderwire cross-connects created in older CTC releases into one network-level CTC circuit.
Search
Displays the Circuit Name Search dialog box, to search for circuits based on circuit name.
Help
Displays context-sensitive help.

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