Zhone Technologies IMACS-200 manual Alarm Field, Field Optical Link Status

Figure 10-4.Local User Loopback

Choose the net (network) setting to loop the incoming data from the network back toward the far end. This loopback is shown in Figure 10-5.It tests some of the local OHSU port circuitry, the local system common ports, the WAN link port, the far-end OHSU port and CPE device, and the WAN link between the two sites.

Figure 10-5.Local Network Loopback

Alarm

The alarm field is an indication field that shows the optical link status.

	Table 10-3. Alarm Field
Field	Optical Link Status
Norm	The optical link is operating properly.
Yellow	The TPE is reporting a reception fault.
Red	The OHSU port is reporting a reception fault.

OHSU Ports 10-5