8. I/O CONNECTORS, JUMPERS and LEDs REFERENCE TABLES

This page tabulates all the I/O connectors, jumpers and LEDs available on Athena IV.

8.1 Connector Reference Table

	Function
J11	Power in
J12	HDD Power output
J5, J21	USB 2.0 (x2)
J7	USB 3.0
J26	SATA
J4	Ethernet-1
J19	Ethernet-2
J25	VGA
J16	JTAG
J24	LVDS
J8 (Bottom side)	LVDS Backlight
J9	External battery
J3	Serial, Utility
J14	DAQ
J15	Audio
J1, J2	PC/104 ISA
J10	M.2
J18	Type 10 COM Express Mini

8.2 Jumper Reference Table

Jumper	Functionalities
JP1	Change serial port protocol mode Enable pull-up/down on DIOs
JP4	Select LVDS scan direction & mapping
JP5	Select LVDS VDD & backlight voltage levels
JP6	Configure ISA IRQ settings
JP7	Enable 121E termination for serial ports 1 & 2
JP8	Enable 121E termination for serial ports 3 & 4
JP9	Select SPI from CoM/FPGA for FPGA flash Select CS# from CoM/FPGA Enable global power enable
J6	Enable watchdog timer functionality
J13	Enable ADC in single/differential ended Enable ADC in unipolar/bipolar Configure DAC in unipolar/bipolar
J25	Enable headless mode operation

8.3 LED Reference Table

LED Block 1
PWIN	Indicates power supply is provided
PWGD	Indicates carrier board power is good
USER	Indicates USER LED
SATA	Indicates SATA activity

LED Block 2
ACT -1	Indicates ETH-1 operating in 10 Mbps
100-1	Indicates ETH-1 operating in 100 Mbps
1G-1	Indicates ETH-1 operating in 1 Gbps
ACT -2	Indicates ETH-2 operating in 10 Mbps
100-2	Indicates ETH-2 operating in 100 Mbps
1G-2	Indicates ETH-2 operating in 1 Gbps