Table 2-3, Jumper header definitions, Jumper settings – ADLINK LittleBoard 735 User Manual

Page 21

Chapter 2

Product Overview

LittleBoard 735

Reference Manual

Jumper Header Definitions

Table 2-3

describes the jumper headers shown in

Figure 2-7

Note: Only the jumper headers listed above are populated on the board. Jumpers or shunts use .079"

(2mm) pitch.

Table 2-3. Jumper Settings

Jumper #

Installed

Removed/Installed

JP1 – RTC (Real Time

Clock) Reset

Enable (pins 1-2)

Disable (Removed) Default

JP2 – Power Management

Power Up by S3 (pins 1-2)
Default

Power Up by S5 (pins 2-3)

JP3 – Serial Port 2
RS485 Termination

Enable Termination (pins 1-2)

Disable Termination (Removed)
Default

JP4 – Serial Port 1
RS485 Termination

Enable Termination (pins 1-2)

Disable Termination (Removed)
Default

JP5 – Fan Voltage Selection

Enable +5V (pins 1-2) Default

Enable +12V (pins 2-3)

JP6 – Compact Flash

Master/Slave

Enable Slave (pins 1-2) Default
[ATA Master]

Enable Master (pins 2-3)
[ATA Slave]

JP7 – Compact Flash
Voltage Selection

Enable +5V (pins 1-2)

Enable +3.3V (pins 2-3) Default

JP8 – LVDS Voltage

Selection

Enable +3.3V (pins 1-2) Default

Enable +5V (pins 2-3)

JP9 – Serial Port 4

RS485 Termination

Enable Termination (pins 1-2)

Disable Termination (Removed)
Default

JP10 – Serial Port 3

RS485 Termination

Enable Termination (pins 1-2)

Disable Termination (Removed)
Default