Black Box KV822A, KV812A manual Operation, Interpreting the Status Display at Power-Up

SERVSWITCH™ USB AND USB PLUS

5. Operation

This chapter explains the general operation of the ServSwitch USB. We recommend that you read this chapter carefully before starting to use the Switch.

5.1 Interpreting the Status Display at Power-Up

When you plug in the ServSwitch USB to power it up, its front-panel 7-segment display will show one of three things:

•If it’s not actually getting any power, the display will be blank.

•If it’s getting power and its front-panel pushbutton isn’t pressed, it will select CPU channel #1; the display will blink “1” while the USB “enumeration process” occurs—see Section 3.1—then will be solidly lit “1”.

•If it’s getting power and its pushbutton is pressed, the display will show the firmware revision (see Section 5.2.2), then blinking and solid “1” as above.

For the meaning of this display after power-up, see Section 5.3.)

DISPLAY SHOWS:

Blank

MEANING:

Switch is not receiving enough power to operate

Flashing number “1”

Switch has powered up normally and is performing enumeration

Alternating letter “F”s and numbers

Steadily lit number “1”

Switch is displaying its firmware revision

Switch has powered up normally and is ready to operate

Figure 5-1. The front-panel status display at power-up.

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