Cabling Requirements; Connector Pin Assignments - 3Com 3C990B-TX-M User Manual

A Specifications and Cabling Requirements

Cabling Requirements

RJ-45 Connector Pin Assignments
98
Standards Conformance
Microsoft PC97
Microsoft PC98
Microsoft PC99
PCI 2.1 and 2.2
DMI 1.0 and 2.0
ACPI 1.0
SMBus 2.2
WBEM, CIM, WMI
The cable, quality, distance, and connectors must comply with the
Electronic Industries Association/Telecommunications Industries Association (EIA/TIA) 568
Commercial Building Wiring Standard and the Technical Services Bulletin TSB38 standards.
Network connection criteria are shown below:
NIC:
Cable:
Network cable connector:
Transceiver:
Maximum Network Segment:
Speed:
Media Type:
The following illustration shows the RJ-45 connector pin assignments for the
3C990B NICs.
3C990B family
Category 3, 4, or 5 unshielded twisted pair
RJ-45
On-board
100 m (328 ft)
10/100 Mbps
10BASE-T
100BASE-TX
Y E
L / 1
G R 0 0
N / 1
0
A C
T
1 2 3 4 5 6 7 8
1 TD+
TD _
2
RD+
3
4
5
RD _
6
7
8