3Com 3CNJ90 manual Appendix a NJ90 Specifications, Hardware, Network Interface

Appendix A: NJ90 Specifications

Appendix A: NJ90 Specifications

The NJ90 is a 4-port, un-managed Fast Ethernet switch that fits into most standard data port openings. The NJ90 allows up to four net- working devices, such as computers, printers, Voice over IP (VoIP) telephones, and scanners, to be connected to the network via one Ethernet port.

The NJ90 needs no software to operate and requires no configura- tion. All ports feature 10/100 Mbps auto-negotiation, which config- ures the NJ90 for 10 Mbps or 100 Mbps connections automatically.

.90"

.91"

4.50"

2.75"

1.81"

Figure 3 - NJ90 Dimension

Hardware

NJ90 Power consumption	5 watts (max.)
Network Interface
10 Mbps Ethernet 10BASE-T	Ethernet IEEE 802.3 industry
	standard for a 10 Mbps baseband
	CSMA/CD local area network
100 Mbps Ethernet 100BASE-	Ethernet IEEE 802.3u industry
TX	standard for a 100 Mbps baseband
	CSMA/CD local area network

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