Black Box KV812A User Manual
28
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.
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:
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”.
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.)
Figure 5-1. The front-panel status display at power-up.
DISPLAY SHOWS:
Blank
Flashing number “1”
Alternating letter “F”s and
numbers
Steadily lit number “1”
MEANING:
Switch is not receiving enough
power to operate
Switch has powered up normally
and is performing enumeration
Switch is displaying its firmware
revision
Switch has powered up normally
and is ready to operate