User`s manual

1.3.6 Industrial features

• Watchdog timer: Can generate a system reset or IRQ11. The watch-

dog timer is programmable, with each unit equal to one second or one

minute (255 levels).

1.3.7 Mechanical and environmental specifications

• Operating temperature: 0° ~ 60° C (32° ~ 140° F, depending on

CPU)

• Storage temperature: -20° ~ 70° C (-4° ~ 158° F)

• Humidity: 20 ~ 95% non-condensing

• Power supply voltage: +5 V, ±12 V

• Power consumption: Typical : +3.3V:4.23A, +5V:1.35A ,

+12V:4.17A (Intel® Pentium® 4 2.4GHz, 512MB DDR 333)

• Board size: 304.8 x 228.6 mm (12" x 9")

• Board weight: 0.7 kg (1.68 lb)

1.4 Jumpers and Connectors

Connectors on the AIMB-740-6CB1 motherboard link it to external

devices such as hard disk drives and a keyboard. In addition, the board

has a number of jumpers used to configure your system for your applica-

tion.

The tables below list the function of each of the board jumpers and con-

nectors. Later sections in this chapter give instructions on setting jump-

ers. Chapter 2 gives instructions for connecting external devices to your

motherboard.

Table 1.1: Jumpers

Label

Function

J1 CMOS Clear

J2 Watchdog timer output selection

J13 RS 232/422/485 selection for CN10 (COM2)

J14 RS 232/422/485 selection for CN70 (COM6)

J15 Serial port pin-out selection signal (R1)

power (5V or 12V)