Seco COM-Express CCOMe-C79 User Manual page 66

Carrier board for type 7 module on atx form factor

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Table Of Contents

Table of Contents

RJ45 Gigabit Ethernet Connector- CN23

Signal

GBE0_MDI0+

GBE0_MDI0-

GBE0_MDI1+

GBE0_MDI2+

presence.

This interface is compatible both with Gigabit Ethernet (1000Mbps) and with Fast Ethernet (10/100Mbps) Networks. It will configure automatically to work with the

existing network.

Please be aware that it will work in Gigabit mode only in case that it is connected to Gigabit Ethernet switches/hubs/routers. For the connection, cables category

Cat5e or better are required. Cables category Cat6 are recommended for noise reduction and EMC compatibility issues, especially when the length of the cable is

significant.

Signals Description:

GBE0_MDI0+/GBE0_MDI0-: Ethernet Controller #0 Media Dependent Interface (MDI) I/O differential pair #0. It is the first differential pair in Gigabit Ethernet mode,

and the Transmit differential pair in 10/100 Mbps modes.

GBE0_MDI1+/GBE0_MDI1-: Ethernet Controller #0 Media Dependent Interface (MDI) I/O differential pair #1. It is the second differential pair in Gigabit Ethernet mode,

and the Receive differential pair in 10/100 Mbps modes.

GBE0_MDI2+/GBE0_MDI2-: Ethernet Controller #0 Media Dependent Interface (MDI) I/O differential pair #2. It is the third differential pair in Gigabit Ethernet mode; it

is not used in 10/100Mbps modes.

GBE0_MDI3+/GBE0_MDI3-: Ethernet Controller #0 Media Dependent Interface (MDI) I/O differential pair #3. It is the fourth differential pair in Gigabit Ethernet mode;

it is not used in 10/100Mbps modes.

CCOMe-C79

COM Express Type 7 modules offer a Gigabit Ethernet interface,

including GbE MAC and PHY. Only the isolation magnetic (with a 1:1

turn ratio) is required.

Signal

On the carrier board, therefore, there is a GbE RJ-45 connector

GBE0_MDI2-

CN23 with integrated magnetic, also including Activity and Link LEDs,

type TRXCOM P/N TRJG16414A4NL or equivalent.

GBE0_MDI1-

On this connector there are also two bicolour Green/Yellow LEDs: LED1 (Left LED) shows 10/100 or