Allied Telesis x530 Series - Figure 16: Link and Activity Leds for the 1 Gbps;10 Gbps SFP+ Ports

x530 Series Installation Guide for Virtual Chassis Stacking
51
Here are the S1 and S2 ports on the switches:
 x530-10GHXm switch - ports 9/S1 - 10/S2
 x530-18GHXm switch - ports 17/S1 - 18/S2
 x530-28GPXm, x530-28GTXm, and x530-28GSX switches - ports
27/S1 to 28/S2
 x530-52GPXm and x530-52GTXm switches - ports 51/S1 to 52/S2
See “SFP/SFP+ Transceiver Ports” on page 23 for a description and
guidelines of the SFP+ transceivers.
Note
SFP or SFP+ transceivers must be purchased separately. For a list
of supported transceivers, refer to the product data sheet on the
Allied Telesis web site.
Each transceiver port has one LED. The LEDs are located between the
ports. Refer to Figure 16.
Figure 16. Link and Activity LEDs for the 1Gbps/10Gbps SFP+ Ports
27/S1
28/S2
25 SFP+
26
10G/1G
Top Transceiver Port LED Bottom Transceiver Port LED