User`s manual

NANO830/831 Intel

Atom

D2550/N2600 Processor Nano-ITX Board

14 Board and Pin Assignments

2.4.1 Digital I/O Port (CN1)

The board is equipped with an 8-channel (3 inputs and 5 outputs) digital I/O connector

that meets requirements for a system customary automation control. The digital I/O can

be configured to control cash drawers and sense warning signals from an Uninterrupted

Power System (UPS), or perform store security control. You may use software

programming to control these digital signals. The software application method is

provided in Appendix B.

2.4.2 COM2 Connector (CN2 or CN19)

The CN2 is a 2x5-pin box header (NANO830 only). This COM2 port has +5V level power

capability on DCD and +12V level on RI by setting JP5 (see section 2.3.3). The pin

assignments of RS-232 are listed in table below.

CN2 (NANO830 only)

The CN19 is a standard 9-pin D-Sub connector on the rear IO (NANO831 only). This

con

nector is equipped with +5V level power capability on DCD and +12V level on RI by

setting JP5 (see section 2.3.3). The pin assignments of RS-232 are listed in table below.

CN19 (NANO831 only)

Pin Signal Pin Signal

1 DI0 2 DO0

3 DI1 4 DO1

5 DI2 6 DO2

7 GND 8 DO3

9 GND 10 DO4

Pin Signal Pin Signal

1 DCD 2 DSR

3 RXD 4 RTS

5 TXD 6 CTS

7 DTR 8 RI

9 GND 10 N.C.

Pin Signal

1 DCD

2 RXD

3 TXD

4 DTR

5 GND

6 DSR

7 RTS

8 CTS

9 RI