Ethernet Module Components - 3Com NETBUILDER II Installation Manual

1
Ethernet Module
Components
Board
Connectors
to NETBuilder II
backplane
O
VERVIEW
This chapter describes the Ethernet module for the NETBuilder II base system and
gives a brief summary of its features.
The NETBuilder II base system is a modular internetworking platform. The Ethernet
module board provides one Ethernet interface for the NETBuilder II base system.
Figure 1-1 provides a surface view of the Ethernet module board showing major
components and a view of the connector/LED panel showing the connectors and the
LED indicator lights.
Core bus
interface
AUI
3Com
Ethernet
Figure 1-1 Ethernet I/O Module Board and Connector/LED Panel
Table 1-1 and Table 1-2 briefly describe the Ethernet module external and internal
components.
On-board
Controller transceiver
BNC
Status LED
Activity LED
(TX)
AUI LED
BNC
connector
15-pin
AUI
connector
AUI
TX
STATUS