DWDM Trunk-Switching Optical Spectrum Analysis

Help for Monitor Setup window

The EM316-OSW8 Optical Switch can be used with the EM316OSA (Optical Spectrum Analyzer) to monitor the strength of DWDM channels from up to eight multiplexed trunks. The Monitor Setup tab is used to configure background monitoring of the Rx Power of these channels.

To set up this system, install the two modules into a single Fiber Driver chassis with an EM316LNXNM-OT management module and connect the OSW8 Common (port 9) to the OSA Input (port 2).

Enter this link into the NMS links database by clicking the Specify Link button for OSW8 port 9 in the Ports Config table. This will open the Links Management window, where you can also specify additional links. When finished, click Close and then Refresh the Monitor Setup window.

Connect the other eight OSW8 switch ports to DWDM trunk Monitor Ports for monitoring. If desired, you may also Specify Link from each Switch Port to its Monitor Port.

Enter the insertion loss for each DWDM trunk into the Attenuation column for each connected port.

The Samples to Keep field sets the maximum number of database entries to keep for each DWDM trunk/OSW8 port. When the database is full, each new sample replaces the oldest entry.

The Sampling Period field sets the wait period in minutes between polling each DWDM trunk. A value of 60 would poll OSW8 port 1, wait one hour, poll port 2, and so on. Each port would be polled once every eight hours.

To begin polling, click the Start button. This will begin scheduled polling. In order to prevent the FiberDriver system from emitting erroneous SNMP "Trap" Notifications, the NMS will attempt to suppress the LinkUp/LinkDown and all OSA-related Notifications for the OSA Input port. If this fails, the user may manually set them from the OSA Input port's Port Info window, Advanced button, Notifications tab.

Polling will continue whether this window is opened or closed, until the Stop button is pressed. At that time the NMS will attempt to restore all suppressed Notifications. If this fails, the user may manually set them from the OSA Input port's Port Info window, Advanced button, Notifications tab.

The results of the background polling will be viewable in the Monitor Results tab.