Owner manual

Doc.ID: 35008, Rev 1.0 Page 2 - 9

CP6925 Functional Description

CUSTOMER SPECIFIC

P R E L I M A R Y

2.3.2 Gigabit Ethernet

The CP6925 board includes two 10Base-T/100Base-

TX/1000Base-T Ethernet ports.

The Ethernet connectors are realized as RJ45 con-

nectors. The interfaces provide automatic detection

and switching between 10Base-T, 100Base-TX and

1000Base-T data transmission (Auto-Negotiation).

Auto-wire switching for crossed cables is also support-

ed (Auto-MDI/X).

RJ45 Connector J6A/B Pinouts

The J6A/B connector supplies the 10Base-T,

100Base-TX and 1000Base-T interfaces.

2.3.3 Ethernet Operational Status LEDs

The operational status LEDs for all Ethernet ports are on the front panel. There are two status

LEDs available for each channel: an activity LED, and a speed LED. Their functions are defined

as follows:

Activity (green): This LED monitors network connection and activity. The LED lights up when

a valid link (cable connection) has been established. The LED goes temporarily off if network

packets are being sent or received through the RJ45 port. When this LED remains off, a valid

link has not been established.

Speed (green/yellow): This LED lights up to indicate a successful 100Base-TX or 1000BASE-

T connection. When green it indicates a 100Base-TX connection and when yellow it indicates

a 1000Base-T connection. When not lit and the Activity LED is active, the connection is oper-

ating at 10Base-T.

Table 2-4: Pinouts of J6A/B Based on the Implementation

MDI / STANDARD ETHERNET CABLE

MDIX / CROSSED ETHERNET CABLE

10BASE-T 100BASE-TX 1000BASE-T 10BASE-T 100BASE-TX 1000BASE-T

I/O SIGNAL I/O SIGNAL I/O SIGNAL I/O SIGNAL I/O SIGNAL I/O SIGNAL

O TX+ O TX+ I/O BI_DA+ 1 I RX+ I RX+ I/O BI_DB+

O TX- O TX- I/O BI_DA- 2 I RX- I RX- I/O BI_DB-

I RX+ I RX+ I/O BI_DB+ 3 O TX+ O TX+ I/O BI_DA+

----I/OBI_DC+4----I/OBI_DD+

----I/OBI_DC-5----I/OBI_DD-

I RX- I RX- I/O BI_DB- 6 O TX- O TX- I/O BI_DA-

----I/OBI_DD+7----I/OBI_DC+

----I/OBI_DD-8----I/OBI_DC-

Figure 2-3: Dual Gigabit Ethernet

Connector J6A/B

J6A

J6B