Black Box ACKMODH6R, ACXMODH4, ACXMODH2, ACXMODH-RMK, ACXMODHR manual Overview, Status USB 2.0 Module

Chapter 2: Overview

2.7.5 Status USB 2.0 Module

The USB 2.0 module has a multicolor LED on both sides to indicate overall status. It also has two more LEDs on the back side to indicate the connection status.

CPU module, rear view CON module, rear view

Figure 2-22. Status USB 2.0 module.

Table 2-28. LEDs 1 and 2: Status.

Position	LED	Status	Description
1	Failure LED (green)	Off	Connection available
		On or flashing	Connection failure (flashing for about 20 seconds following a connection failure)
2	Status LED (green)	Off	No connection via interconnect cable
		On	Connection available

	Table 2-29. LED 3: USB 2.0 Status.
LED color	Description
Red	Device ready
Green	Only connection available, no USB 2.0 signal
Green/turquoise flashing	Connection available, no USB 2.0 device connected (only CON unit)
Turquoise	Connection and USB 2.0 signal available (operating status)

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