ADLINK LittleBoard 735 - Manual (Page 21)

Chapter 2 Product Overview
LittleBoard 735 Reference Manual 15
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