3Com NJ220 manual Hardware, Network Interface, Performance

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Product Specifications

Hardware
Power consumption	<5 watts without power forwarding
	Maximum 13 watts with power forwarding (depending on the
	device drawing power)
Network Interface
10 Mbps Ethernet	Ethernet IEEE 802.3 industry standard for a 10 Mbps baseband
10BASE-T	CSMA/CD local area network
100 Mbps Ethernet	Ethernet IEEE 802.3u industry standard for a 100 Mbps baseband
100BASE-TX	CSMA/CD local area network
Performance
Auto-negotiation	Communication speed (10 Mbps or 100 Mbps) and duplex mode
	(full or half) can be determined through auto-negotiation with
	the attached devices. The IntelliJack attempts to negotiate the
	fastest connection possible (100 Mbps full-duplex).
	The communication speed and duplex mode can also be
	controlled using the configuration management software.

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