40Gbps Qsfp+ Transceiver Slots; Leds - Allied Telesis AT-x550-18XTQ Installation Manual

Chapter 1: Overview
40Gbps QSFP+
Transceiver Slots

LEDs

20
transceiver-style connectors
Additional information about the transceiver slots is given here:
 They do not support 100Mbps transceivers.
 They support full-duplex mode only.
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.
The two QSFP+ transceiver slots support the following types of
transceivers:
 AT-QSFPSR4 transceiver - 150m using multi-mode fiber optic
cable
 AT-QSFPLR4 transceiver - 10k with single-mode fiber optic cable
 AT-QSFP1CU and AT-QSFP3CU direct connect cables in lengths
of 1 and 3 meters, respectively
 AT-QSFP-4SFP10G-3CU and AT-QSFP-4SFP10G-5CU breakout
cables in lengths of 3 and 5 meters, respectively
Note
The QSFP+ slots are initially configured as stacking slots for the
VCStack feature. If you plan to use the switch as a stand-alone unit,
you can use the slots and transceivers as regular networking ports
by disabling the VCStack feature. For instructions, refer to x550
Series Installation Guide for Stand-alone Switches.
QSFP+ transceivers must be purchased separately. For a list of supported
transceivers, refer to the x550 Series data sheet on the Allied Telesis web
site.
For instructions on the VCStack feature, refer to the x550 Series
Installation Guide for Virtual Chassis Stacking.
Here are the port LEDs:

Link/activity LEDs for the 1Gbps/10Gbps twisted pair ports on the
AT-x550-18XTQ Switch
 Link/activity LEDs for the SFP and SFP+ transceiver slots on the
AT-x550-18XSQ Switch
 Link/activity LEDs for the QSFP+ transceiver slots

Stack ID number LED

eco-friendly button turns off the LEDs to conserve electricity