Technical data

7.4 Double Ethernet Switch

Two RJ45 sockets with integrated magnetics are used in EB 200. The assignment of each socket corresponds to that

of a switch (downlink). The integrated magnetics support autocrossover – MDI/MDIX.

Connector name: X3, X4

Connector type: RJ45 socket with integrated LEDs

Connector assignment: Switch (downlink)

Pin No. Signal Name Function

1 RX+ Receive +

2 RX- Receive -

3 TX+ Transmit +

4 --- 4 with 5 together over 75 Ohm on C to shield ground

5 --- 4 with 5 together over 75 Ohm on C to shield ground

6 TX- Transmit -

7 --- 7 with 8 together over 75 Ohm on C to shield ground

8 --- 7 with 8 together over 75 Ohm on C to shield ground

Shield collar M_EXT Shield, permanently connected

Table 15: Pin Assignment for Ethernet Switch Interface (Downlink)

The LAN cable from/to the evaluation boad must not be longer than 30m.

7.5 Serial Asynchronous Interface

The ERTEC 200 has one asynchronous serial interface. The required pins are multiplexed as alternative GPIO pins.

The UART, along with the RS232 interface driver, is directly connected to a 9-pin SUB-D connector. If the UART

interface is not needed, the interface can be deactivated using the jumper SYS_CONFIG[2] = OFF.

Connector name: X7 (UART)

Connector type: 9-pin SUB-D connector

Pin Signal Name Type Meaning

1 - - -

2 RxD I Receive Data

3 TxD O Transmit Data

4 - - -

5 M V Ground

6 - - -

7 - - -

8 - - -

9 - - -

Table 16: Pin Assignment for UART

Technical data subject to change Version 1.1.4