Chapter 1. Introduction
7
No. Component Description
1 Port Selection
Pushbuttons Press a pushbutton to give the KVM focus to the computer
attached to its corresponding port.
Simultaneously pressing Pushbuttons 1 and 2 for 3 seconds
performs a keyboard and mouse reset.
Simultaneously pressing Pushbuttons 7 and 8 of the
KH2508A or Buttons 15 and 16 of the KH2516A starts Auto
Scan mode (see F7: SCAN, page 38, for auto scan details).
2 Port LEDs The Port LEDs are built into the Port Selection Pushbuttons.
The left ones are the On Line LEDs; the right ones are the
Selected Port LEDs:
An On Line LED lights GREEN to indicate that the computer
attached to its corresponding port is up and running. A
flashing LED indicates that the Port is being used for
cascading to another switch.
A Selected LED lights ORANGE to indicate that the computer
attached to its corresponding port is the one that has the
KVM focus. The LED is steady under normal conditions, but
flashes when its port is accessed under Auto Scan mode
(see F7: SCAN, page 38, for auto scan details).
3 Reset Switch Pressing this switch in performs a system reset.
Note: The switch is recessed and must be pushed with a small
object, such as the end of a paper clip, or a ballpoint pen.
4 Console
Selection
Pushbuttons
Press a pushbutton to select a console for manual port
selection. When you press one of the manual port selection
pushbuttons the selected console will be connected to that port.
The LED next to the pushbutton indicates which console is
selected.
5 Firmware
Upgrade
Recovery
Switch
During normal operation and while performing a firmware
upgrade, this switch should be in the NORMAL position. If a
firmware upgrade operation does not complete successfully,
this switch is used to perform a firmware upgrade recovery.
See Firmware Upgrade Recovery, page 59 for details.
6 Firmware
Upgrade Port The Firmware Upgrade Cable that transfers the firmware
upgrade data from the administrator's computer to the KH2508A
/ KH2516A (see page 53), plugs into this RJ-11 connector.
7 Power LED Lights to indicate that the KH2508A / KH2516A is powered and
ready to operate.
8 Station ID
LED The KH2508A / KH2516A's Station ID is displayed here. If this is
a single station installation (see page 14), or the first station on
a daisy chained installation (see page 17), the KH2508A /
KH2516A has a station ID of 01.
On a daisy chained installation, the KH2508A / KH2516A auto-
senses its position and displays the station ID that corresponds
to its place in the chain. (see Port ID Numbering, page 23, for
details).