Allied Telesis AT-X510-28GTX manual Stacking SFP+ Slots, Transceiver Model, Cable Type, Distance

x510 Series Installation Guide for Stand-alone Switches

Stacking SFP+ Slots

Two of the four SFP+ slots on the front panel of the switch can be used with special stacking transceivers to create a VCStack of up to four switches. The switches of a VCStack act as a single virtual unit. They synchronize their actions so that switching operations, like spanning tree protocols, virtual LANs, and static port trunks, span across all the units and ports. The two main advantages of stacks are:

You can manage multiple units simultaneously, which can simplify network management.

You have more flexibility in how you configure some of the features. For instance, a static port trunk on a stand-alone switch has to consist of ports from the same switch. In contrast, a static trunk on a stack may consist of ports from different switches in the same stack.

The slots for the stacking transceivers are SFP+ slots 27 and 28 on the 28- port switches and slots 51 and 52 on the 52-port switches.

The stacking transceivers are listed in Table 5.

Table 5. Stacking Transceivers

Transceiver Model	Cable Type	Distance
AT-StackXS/1.0	Twisted pair	1 meter
AT-StackOP/0.3	Fiber optic	300 meters
AT-StackOP/9.0	Fiber optic	9 kilometers

Note

This guide explains how to install the devices as stand-alone units. For instructions on how to install the switches in a stack, refer to the x510 Series Installation Guide for Virtual Chassis Stacking.

31