3Com 10/100BASE-T manual Interface RS-232 Port Specifications

		Technical Specifications A-3
Interface RS-232 Port
Specifications
	Electrical specification	RS-232-C (EIA/TIA-232-E standard)
	Connector	RJ-45, 8 position modular jack
	Configuration	Data Terminal Equipment (DTE)
	Transmission method	Unbalanced RS-232
	Transmission rate	115,200 bps maximum
	Ethernet 10Base-T/100 Base-TX Ports
	Data Transfer Rate	10/100 Mbps Auto-negotiated
	Connector	8-position modular jack, Stewart 88-360808 or
		equivalent
	Accessing Scheme	CSMA/CD (Carrier Sense Multiple Access with Collision
		Detection)
	Topology	Star Wired Hub (using multiport repeater)
	Maximum Nodes	Limited only by repeater used
	Transmission medium	Unshielded Twisted Pair (UTP) cable type CAT3 or CAT5
		(CAT5 recommended) for 10Base-T applications, CAT5
		for 100Base-TX
	Network Lobe Distance	100 meters (328 ft.) suggested maximum (Longer
		cabling can be used at the expense of reduced receiver
		squelch levels)