Kontron CP930 - Manual (Page 30)

Functional Description CP930
Page 2 - 4 © 2003 Kontron Modular Computers GmbH ID 26683, Rev. 01
2.1.3 System Interfaces
The CP930 provides interfacing capability for the following system elements:
• Up to 5 Fast Ethernet interfaces
• Power supply
Ethernet interfacing is achieved either via the CON3(RJ45), CON4(RJ45), CON5(FX), or
CON6(RJ45) connectors depending on the CP930 variant in use and the type of network link:
copper or fiber optic. One of the features of the Fast Ethernet switch controller is that it can au-
tomatically detect signal polarity so there is no need for using crossover cabling for direct cop-
per links to a switch.
2.1.4 Monitor and Control
For each RJ45 port there are two LED’s available to indicate status. The yellow LED indicates
if the link is active, and if so whether there is activity on the link or not. If on, the link is active,
if blinking there is activity on the link. The green LED indicates link speed: ON is 100 Mbit, OFF
is 10 Mbit.
The fibre optic port has no indicators and is always 100 Mbit speed.
2.2 Board-Level Interfacing Diagram
The following figure demonstrates the interfacing structure between the internal processing
modules of the CP930. Where CP930 system elements have common interfacing they are
grouped into a block. Interfacing common to only one element of a block is indicated with a di-
rect connecting line. The interfacing lines are shown in white where they are on board and in
black for board external interfacing.
The “*” (asterisk) in the figure blocks indicate that the actual implementation depends on the
CP930 variant employed.
Legend for Figure 2-1:
• GALV.ISOL. = galvanic isolation for copper links
• MT-RJ TRCV = MT-RJ-type transceiver for fiber optic links
• CAT5 UTP = category 5, unshielded twisted pair cabling (copper links)
• T/R FO = transmit and receive fiber optic links
• ETH = Ethernet Channel
As the Fast Ethernet controller provides automatic detection of the Ethernet standard in use on
copper links the CP930 may be used with any mix of Ethernet networks with 10Base-T or
100Base-TX.