Cisco ONS 15310-CL, Руководство по устранению неисправностей

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
78-17235-01
Chapter 1 General Troubleshooting
1.4.1 FEAC Send Code
Figure 1-1 Accessing FEAC Functions on the DS3 ports of WBE-28/WBE-84 Cards
The "far end" in FEAC refers to the equipment connected to the WBE card and not to the far end of a
circuit. In
Figure 1-2 , if a WBE-28/WBE-84 DS3 (near-end) port is configured to send a line loop code,
the code will be sent to the connected test set, not the WBE-28/WBE-84 DS3 (far-end) port. FEAC
functions will be available only when the DS3 port is configured in CBIT Framing.
Figure 1-2 Diagram of FEAC Circuit
1.4.1 FEAC Send Code
The Send Code column on the WBE-28/WBE-84 cards Maintenance tab only applies to OOS-MA,MT
ports configured for CBIT framing. The column lets a user select No Code (the default) or line loop code.
Selecting line loop code inserts a line loop activate FEAC in the CBIT overhead transmitting to the
connected facility. This code initiates a loopback from the facility to the ONS 15310-MA. Selecting No
Code sends a line-loop-deactivate FEAC code to the connected equipment, which will remove the
loopback.
Tx
Rx
WBE
(Near End)
Tx
Rx
OC48
OC48
Ring
Test Set
Node B Node A
CPE
Rx
Tx
OC48
Tx
Rx
WBE
(Far End)
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