Specifications

Chapter 2 Product Overview
LittleBoard 800 Reference Manual 13
Jumper Headers
Table 2-3 describes the jumper headers shown in Figure 2-6 on page 12.
Note: Only the jumper headers listed above are populated on the board. Jumpers or shunts use .079"
(2mm) spacing. A jumper that is removed may be placed on one of the jumper pins for safe
keeping.
Specifications
Physical Specifications
Table 2-4 gives the physical dimensions of the board.
Table 2-3. Jumper Settings
Jumper # Installed Removed/Installed
JP1 – LVDS Voltage Select Enable +3.3V (pins 1-2) Default Enable +5V (pins 2-3)
JP2 – Compact Flash
Master/Slave
Enable Slave (pins 1-2) Enable Master (pins 2-3) Default
JP3 – Compact Flash
Voltage Selection
Enable +5V (pins 1-2) Default Enable +3.3V (pins 2-3)
JP4 – Serial Port 1
RS485 Termination
Enable Termination (pins 1-2) Disable Termination (Removed)
Default
JP5 – Serial Port 2
RS485 Termination
Enable Termination (pins 1-2) Disable Termination (Removed)
Default
JP6 – Serial Port 3
RS485 Termination
Enable Termination (pins 1-2) Disable Termination (Removed)
Default
JP7 – Serial Port 4
RS485 Termination
Enable Termination (pins 1-2) Disable Termination (Removed)
Default
JP19 – CMOS Normal/Clear Clear CMOS (pins 1-2) Normal (Removed) Default
Table 2-4. Weight and Footprint Dimensions
Item Dimension
NOTE Overall height is measured from the
upper board surface to the highest
permanent component (battery in
socket) on the upper board surface.
This measurement does not include
the various heatsinks or various size
DIMMs inserted into the socket. The
DIMMs or heatsinks could increase
this dimension.
Weight 0.351kg. (0.775lbs.)
Height (overall) 24.94mm (0.982")
Width 146mm (5.75")
Length 203mm (8.0")
Thickness 2.36mm (0.093")