Osbourne User Manual V0.21
Page 17
6 CONNECTOR AND JUMPER LOCATION
6.1 Jumper Selection
The Jumper blocks on the Elton baseboard can be configured to enable/disable or alter the default signal routing
settings on the circuit, using Jumper shunts.
The following table describes the Jumper Blocks on the baseboard.
Jumper Description
JP1
Serial Termination Enable/Disable
JP2
DIO voltage selection/DIO push pull selection
JP3
PCIe/Minicard selection, Configuration, WOL,
Auto Power Selection
6.1.1
Serial Port Termination Jumper Selection
JP1 Jumpers Configuration are provided enable and disable the termination of serial ports1-2.
Position
Function
IN
OUT
TX1
121E Termination Enabled for SER1 TX RS-485/RS-422 Mode
Enabled
Disabled*
RX1
121E Termination Enabled for SER1 RX RS-485/RS-422 Mode
Enabled
Disabled*
TX2
121E Termination Enabled for SER2 TX RS-485/RS-422 Mode
Enabled
Disabled*
RX2
121E Termination Enabled for SER2 RX RS-485/RS-422 Mode
Enabled
Disabled*
*Default Mode
6.1.2
DIO Jumper Selection
JP2 Jumpers are provided to select the voltage level and Pullup/pull down configuration of the DIO. By default,
the DIOs are 3.3 Volare pulled down. The configuration is as shown below:
Position Function
IN
OUT
5V
DIO Voltage Level
5V
3V3
DIO Voltage Level
3.3V*
PU
DIO Pull up Enable
Enabled
Disabled
PD
DIO Pull down Enable
Enabled*
Disabled
*Default Mode
Note: Make sure 5V and 3V3 Jumper are not IN at same time.
6.1.3
Configuration Jumper Selection
JP3 Jumpers Configuration are provided to select the Voltage level of Digital I/Os. By default, the DIOs are 3.3 V.
The configuration is as shown below:
Position Function
IN
OUT
PCIE
x16 PCIE / MINICARD Selection x16 PCIE
MINICARD*
CFG
Boot Configuration
Config #2
Config #1 *
WOL
Wake on LAN
Enabled
Disabled*
AUTO
Auto Power
Enabled
Disabled*
*Default Mode