A.2.3 The LED Interface

The LED interface on the LSIU40HVD 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 LSIU40HVD are J4 for Channel A, and J7 for Channel B.

Table A.5 LED Connector J5/J9

Signal Name

Pin

 

 

LED+

1

 

 

LED−

2

 

 

LED−

3

 

 

LED+

4

 

 

Operational Environment

A-9