Allied Telesis AT-S63 - Manual (Page 62)

Chapter 2: AT-9400Ts Stacks
62 Section I: Basic Operations
AT-S63 Management Software
Stacking requires Version 3.0.0 or later of the AT-S63 Management
Software.
Note
Version 3.0.0 is only supported on the AT-9424T, AT-9424T/POE,
AT-9424Ts, AT-9424Ts/XP, AT-9448T/SP, and AT-9448Ts/XP
Basic Layer 3 Switches. Do not install it on the AT-9408LC/SP,
AT-9424T/GB, and AT-9424T/SP Layer 2+ Switches.
Supported Models
Stacking is only supported on the following AT-9400 Switches:
ˆ AT-9424Ts
ˆ AT-9424Ts/XP
ˆ AT-9448Ts/XP