Allied Telesis AT-PC232/POE manual Setting the Operating Mode

Setting the Operating Mode

AT-PC232/POE Media Converter Installation Guide

respond by pulsing the transmitter on the twisted pair port and flashing the port’s Link LED about once a second to signal that the failure originated on the fiber optic port. When the connection is reestablished on the fiber optic port, the twisted pair port would automatically resume normal operations to permit the two ports to forward traffic again.

The operating mode functions the same if the failure starts on the twisted pair port. Here, the mode pulses the transmitter on the fiber optic port.

As with the other operating modes, this mode does not interfere with the flow of network traffic through the ports of a media converter during normal network operations of a media converter. However, Allied Telesis recommends limiting its use to diagnosing link failures, particularly if the network devices connected to the ports are managed devices. The pulsing of the transmitter on a port and the constantly changing status of a link could prove problematic for some managed devices. For example, the device might send a constant stream of SNMP traps or, if the device is running a spanning tree protocol, the protocol might become confused as the status of the device’s link to the media converter constantly changes.

You set the operating mode on the media converter using the Mode select on the front panel of the unit. Setting the mode does not interfere with the network operations of the device. To set the operating mode, use a pointed object such as a pen to depress the Mode button.

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