Allied Telesis AT-x510-52GTX User Manual

x510 Series Installation Guide for Stand-alone Switches

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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.

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.

Table 5. Stacking Transceivers

AT-StackXS/1.0

Twisted pair

1 meter

AT-StackOP/0.3

Fiber optic

300 meters

AT-StackOP/9.0

Fiber optic

9 kilometers