Allied Telesis AT-IX5-28GPX manual Here are the transceiver guidelines

IX5-28GPX Installation Guide

Here are the transceiver guidelines:

ˆThe stacking transceivers may only be used in the stacking slots and only with the VCStack feature. You may not use the transceivers as regular networking ports.

ˆThe AT-StackOP/0.3 and AT-StackOP/9.0 transceivers must be connected to other AT-StackOP/0.3 and AT-StackOP/9.0 transceivers. The transceivers do not work with other types of network devices.

ˆYou may use different types of transceivers to connect the switches of a stack and so build stacks of switches that are at various distances from each other.

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