Table 2-6 Jp18 Serial Port 2 Rs232 Connections (Cable-Side Signals); Table 2-7 Jp17 Serial Port 1 Flow Control Break Out Header; Table 2-8 Jp8 And Jp9 Port 2 Serial Or Usb/Serial Selection Headers - Lantronix xPico 110 User Manual

Table 2-6 JP18 Serial Port 2 RS232 Connections (cable-side signals)

Jumper headers JP17, JP8 and JP9 have been included to allow for each of the serial port
signals to be connected or disconnected from the serial port transceiver. The tables below list
the JP17, JP8, and JP9 serial port signal connections. JP17 has all the serial signals, and also
CP3 and CP4 which can be used for DTR and DCD signals. Install jumper or remove as
needed for desired function of CPs or serials. In addition, the second serial port on the xPico
110 module can be connected to either the serial port JP18 or to the USB on J5 via the on
board USB-to-serial converter U15 (FTDI device). Jumpers JP8 and JP9 allow for the selection
of sending the JP18 or J5 USB-to-Serial converter to Serial Port 1.
In order to access the unit through the J5 USB port, you will need to install the USB-to-serial
VCP driver from FTDI on your PC. It is available in the installation directory of DeviceInstaller,
for installation. It can also be obtained from the FTDI website provided below. Once installed,
you will be able to view the xPico110 boot messages as well as provide command inputs
through any PC terminal program, such as Tera Term.
Download FTDI USB-to-serial drivers at this website:
xPico 1 1 0
Module U22 Pin
57
56
55
12
54
13
Note: JP17 jumpers 7 to 8 and 11 to 12 are not installed by default. All other JP17 jumpers
are installed at the factory.

Table 2-8 JP8 and JP9 Port 2 Serial or USB/Serial Selection Headers

Serial Port 1 External Connection
Serial Port 2 to JP18 for RS232 (Default)
Serial Port 2 to J5 USB via USB-to-serial converter
xPico® 110 Wired Device Server Module Evaluation Kit User Guide
xPico Evaluation Kit Serial Port 2
TX RS232 output
Signal Ground
RX RS232 input

Table 2-7 JP17 Serial Port 1 Flow Control Break Out Header

xPico Module PIN FUNCTION
Serial Port TXD1 (output)
Serial port RXD1 (input)
Serial port RTS1 or TX enable or
configurable pin
Configurable pin CP3 or Serial port DTR1 8
Serial port CTS1
Configurable pin CP4 or Serial port DCD1 12
JP18 pin
1
2
3
http://www.ftdichip.com/Drivers/VCP.htm
JP17 JP17 JP3 Evaluation Kit
Function
Pin # Pin #
2 1
RS232, RS485 TX
4 3 RS232, RS485 RX
6 5 RS232 RTS, RS485 TX
Enable
7 RS232 DTR
10 9
RS232 CTS
11 RS232 DCD
JP8 JP9
Jumper pins 1 to 2 Jumper pins 1 to 2
Jumper pins 2 to 3 Jumper pins 2 to 3
2: Evaluation Kit
12