Led Connectors; A.2.3 The Led Interface - LSI LSIU40SE User Manual

A.2.3 The LED Interface
The LED interface on the LSIU40SE is a four-wire arrangement that
allows the user to connect an LED harness to the board. The
GPIO0_FETCH line (maximum output low voltage 0.4 V and minimum
output low current 16 mA) is pulled low to complete the circuit when a
harness with an LED is attached. The connectors on the LSIU40SE are
J5 and J9.
Table A.5 LED Connectors J5/J9
Signal Name
LED+
LED−
LED−
LED+
Operational Environment
Pin
1
2
3
4
A-9