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Chapter 1: Overview
Power Over
Ethernet
1Gbps SFP or
10Gbps SFP+
Transceiver Slots
40Gbps QSFP+
Transceiver Slots
20
Auto-Negotiation for speed
Full-duplex mode only
Port Link/Activity (L/A) LEDs
Power over Ethernet (PoE+)
Here are the basic features of PoE+ on the twisted pair ports on the
AT-x550-18XSPQm Switch:
Supported on ports 1 to 8.
Supports PoE (15.4 watts maximum) and PoE+ (30 watts
maximum) powered devices
240W power budget
Supports powered device classes 0 to 4
Port prioritization
Mode A wiring
IEEE802.3at compliant
The sixteen 1Gbps/10Gbps transceiver slots in the AT-x550-18XSQ
Switch support the following types of transceivers:
1Gbps SX/LX SFP transceivers
10Gbps SR/LR SFP+ fiber optic transceivers
10Gbps AT-SP10TW direct connect twinax cables with SFP+
transceiver-style connectors
These items provide additional information:
They do not support 100Mbps transceivers.
They support full-duplex mode only.
SFP and SFP+ transceivers must be purchased separately. For a list of
supported transceivers, refer to the product data sheet on the Allied
Telesis web site.
The two 40Gbps 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
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