Nic Configuration/Control; Nic Connectors; Figure 5-9. Ethernet Aui C; Figure 5-10. Ethernet Rj-45 C - Compaq Deskpro 4000N Technical Reference Manual

Chapter 5 Input/Output Interfaces
5.7.1

NIC CONFIGURATION/CONTROL

The NIC is a PCI device and configured through PCI configuration space registers. The NIC is
controlled through I/O registers mapped in the 300h-30Fh range.
5.7.2

NIC CONNECTORS

The network interface provides two choices of connection to a LAN system as shown in the
following figures.
15
Figure 5–9. Ethernet AUI Connector (DB-15, viewed from rear)
Figure 5–10. Ethernet RJ-45 Connector
5-36 Compaq Deskpro 4000N and 4000S Personal Computers
1
8 7 6 5 4 3 2 1
First Edition – September 1997
Pin Description
1 Ground
2 Control In
3 TX Data
4 Ground
5 RX Data
6 Ground
7 n/c
8 Ground
Pin Description
1 Transmit
2 Transmit Low
3 Receive
6 Receive Low
Pin Description
9 Control In RTN
10 TX Data RTN
11 Ground
12 RX Data RTN
13 +12 VDC
14 Ground
15 n/c