Chapter 1. Introduction

 

 

 

 

 

 

 

 

 

No.

Component

Description

 

 

 

1

Port Selection

Š Press a pushbutton to give the KVM focus to the computer

 

Pushbuttons

attached to its corresponding port.

 

 

Š Simultaneously pressing Pushbuttons 1 and 2 for 3 seconds

 

 

performs a keyboard and mouse reset.

 

 

Š 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 36, 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:

 

 

Š 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.

 

 

Š 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 36, 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

Press a pushbutton to select a console for manual port

 

Selection

selection. When you press one of the manual port selection

 

Pushbuttons

pushbuttons the selected console will be connected to that port.

 

 

The LED next to the pushbutton indicates which console is

 

 

selected.

 

 

 

5

Firmware

During normal operation and while performing a firmware

 

Upgrade

upgrade, this switch should be in the NORMAL position. If a

 

Recovery

firmware upgrade operation does not complete successfully,

 

Switch

this switch is used to perform a firmware upgrade recovery.

 

 

See Firmware Upgrade Recovery, page 56 for details.

 

 

 

6

Firmware

The Firmware Upgrade Cable that transfers the firmware

 

Upgrade Port

upgrade data from the administrator's computer to the KH2508A

 

 

/ KH2516A (see page 51), 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

The KH2508A / KH2516A's Station ID is displayed here. If this is

 

LED

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 21, for details).

7