Diamond Systems ELTON ELT-BB01, User Manual

Page: 43 / 66

Elton User Manual Rev 1.04 www.diamondsystems.com Page 43
Serial Termination and USB Mode Selection: JP2
The JP2 block settings can be switched/shorted to operate in different modes. The mode is selected using
Jumper shunts. The options in JP2 enable switching for the120ohm terminator resistor in the RS422/485
interface and the USB 2.0 ports.
The first four positions of the Jumper are used to select the termination points for serial ports 1 and 2 in the
RS422/RS485 mode.
The fifth position of the Jumper will set the USB0 port to
HOST
mode or
Client
mode, which is the default
setting.
The sixth position of the Jumper will set the USB routing to the LTE module, which is the default setting, or
to the PCIe MiniCard.
The following table shows the pinouts, function and termination modes on the JP2 block. The text in bold
and italics mark the default configuration on JP2 .
Position Function IN OUT
1
Serial Port1 TX Termination Enabled Disabled
2
Serial Port2 TX Termination
Enabled Disabled
3 Serial Port1 RX Termination
Enabled Disabled
4 Serial Port2 RX Termination
Enabled Disabled
5 USB 2.0 Port 0 on J3 Host Mode Device Mode
6 USB 2.0 Port 3
LTE Module PCIe MiniCard
The following figure illustrates the default Jumper settings on the JP2 block.
Figure 12.2-1: Jumper JP2 Default Location Settings
Note : On-board, numbers 1, 2, 3, 4, 5, and 6, indicate the location for a Jumper on pin numbers 1-2, 3-
4, and 5-6, respectively.