1Gbps Sfp Or 10Gbps Sfp+ Transceiver Slots - Allied Telesis AT-x550-18XTQ Installation Manual

1Gbps SFP or 10Gbps SFP+ Transceiver Slots

The transceiver slots numbered 1 to 16 on the AT-x550-18XSQ Switch
support the following types of 1Gbps SFP and 10Gbps SFP+ transceivers:
 1Gbps SX/LX SFP transceivers
 10Gbps SR/LR fiber optic transceivers

10GBbps AT-SP10TW direct connect twinax cables with SFP+
transceiver-style connectors
Additional information about the SFP+ transceiver slots is listed here:

They do not support 100Mbps-FX transceivers.

They support full-duplex mode only.
 You can set the port speeds with Auto-Negotiation or manually.
The default is Auto-Negotiation.
SFP or SFP+ transceivers must be purchased separately. For a list of
supported transceivers, refer to the x550 Series product sheet on the
Allied Telesis web site.
x550 Series Installation Guide for Virtual Chassis Stacking
23