Lantronix 900-563 manual Power Supply, General Control, Configuration Switch Bank

2 Demonstration Kit

Power Supply

The demo board uses an external 3.3V regulated supply (included with kit).

General Control

The following tables denote the configuration of the demo board. Configuring the jumpers re-routes signals on the demo board to use as Serial control signals, or to connect to other places on target board as General Purpose IO (GPIO).

Configuration Switch Bank

Table 2-2. Demo Board JP6 Jumper Configuration for CON1

JP6	JP6	Function
pin/Signal	pin/Signal
1/TXD	2/TXD	Jumper 1-2, Send TXD to RS232 transceiver.
3/RTS	4/RTS/CP1	Jumper 3-4, Send RTS to RS232 transceiver. For
		connection to an additional RS485 transceiver, RTS
		would be used to drive the transceiver TX enable.
5/DTR	6/DTR/CP2	Jumper 5-6, Send DTR/CP2 to RS232 transceiver.
7/RXD	8/RXD	Jumper 7-8, Receive RXD from RS232/485 transceiver.
9/CTS	10/CTS/CP3	Jumper 9-10, Receive CTS from RS232 transceiver.
11/DSR	12/NC	Jumper 11-12. Unused, auxiliary transceiver receive port.
13/DCD	14/NC	Jumper 13-14, Unused, auxiliary transceiver receive port.

Note: CP arrangement in the tables above is for demonstration purposes only. All CPs can be used as GPIOs. In XPort Pro custom applications, any CP can be assigned as any function except that only CP1 can be assigned to RTS in RS232 mode or TX Enable in RS485 Mode, and only CP3 can be assigned to CTS in RS232 Mode. In XPort custom applications (RS232 mode), only CP1 can be assigned to RTS, only CP2 can be assigned to DTR, and only CP3 can be assigned to CTS.

Note: NC=Not Connected to the XPort module. These pins can be assigned as needed using jumpers.

Table 2-3. Demo Board R16 Configuration

Pin/Signal	Pin/Signal	Function
1/3V3	2/3V3_XPort	XPort UUT power input resistor for current measurement.
		Resistor can be replaced by a wire loop or other resistor
		value for UUT power measurements

XPort™ Universal Demo Board User Guide 8