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Chapter 2: Overview
2.7.5 Upgrade Module USB 2.0 Embedded Status
The upgrade module USB 2.0 embedded is fitted with three LEDs on the rear side that indicate the connection
status.
CPU module, rear view
CON module, rear view
USB 2.0 embedded upgrade module.
USB 2.0 embedded upgrade module status LEDs.
Position LED
Status
Description
1
Status LED (green)
Off
No USB 2.0 device connected
Flashing slowly
USB 2.0 device connected
2
Status LED (green)
Off
No connection to source (computer, CPU) available
Flashing slowly
• Connection to source (computer, CPU) available
• No USB 2.0 device connected
3
Status LED (green)
On
• Connection to source (computer, CPU) available
• USB 2.0 device(s) connected
Off
No connection between CON and CPU module
On
Connection between CON and CPU module available