Advantech HMI-640S user manual Ethernet configuration, Keyboard and PS/2 mouse connector

4.10.2 Ethernet configuration

The CPC-2245N is equipped with a high performance 32-bit PCI-bus Fast Ethernet interface that are fully compliant with IEEE 802.3u 10/100Base-T specifications. Ethernet connector is a RJ-45 jack. User can follow a transfer table to connect Ethernet signals to a standard RJ-45 connector.

Table 4-13: Ethernet configuration

RJ-45		CN4		RJ-45		CN4
Pin	Signal	Pin	Signal	Pin	Signal	Pin	Signal
1	TD+	36	TPT+	2	TD -	35	TPT-
3	RD+	39	TPR+	4	NC	-	-
5	NC	-	-	6	RD-	38	TPR-
7	NC	-	-	8	NC	-	-

4.10.3 Keyboard and PS/2 mouse connector

The CPC-2245N provides a keyboard and PS2 mouse interface through a 40-pin FPC connector (CN4) for connection of PS/2 keyboard and PS/2 mouse.

In most cases, especially in embedded applications, a keyboard is not used. The standard PC/AT BIOS will report an error or fail during power-on self-test (POST) after a reset if the keyboard is not present. The CPC-2245N's BIOS "Standard CMOS Features" allows you to select "Halt on" under the "All, but keyboard" or "All, but disk/key" selection. This allows no-keyboard operation in embed- ded system applications without the system halting under POST (power on self test).

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