KVM-Switch Database

This page allows you to select or to create a KVM switch model to be used behind the .

After you have made all modifications, click Store Settings to save your settings and then hit Apply Settings/Restart Servers to validate these new settings. Every change you have made on this page will NOT apply until you hit Apply Settings/Restart Servers!   

Click the Quick Links for more information:

KVM Model

Here, in the drop down combo box, you can take a brief look of all the currently supported KVM models built into this database. Normally, you don’t have to care about this KVM database, unless either you need to modify the port switching sequence of an available KVM switch model, or, you want to delete an entry, or you need to create a new entry into the existing KVM Switch list.

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Model Name

The Model Name shows the model name of the KVM switch you have selected from the drop down box above, and the subsequent parameters as shown in below are all pertaining to that KVM switch models, as regarding port number, Escape hotkey, key delay, and port-switching sequence, etc. Also if you want to add a new KVM switch entry into the existing list, this is also the place you can enter the name for the KVM switch and go on subsequent settings for that specific KVM switch.

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Number of Ports

This is where you can specify the maximum port capacity of the selected KVM Switch model. Note that that some models can be daisy-chained together to expand the total port capacity. If you intend to add a KVM switch model to the database and use it as in daisy-chained configuration with other KVM switches, you should here specify its maximum port capacity as expandable in this configuration. allows a maximum setting of up to 256 ports.

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Escape Hotkey Sequence

To select the active port, the conventional KVM switches use to provide buttons and/or hotkeys and/or OSD menu. cannot drive those low-end KVMs that cannot switch with something else than buttons (usually two-port KVMs). On the contrary, can drive all the KVM switches that provide hotkeys and/or OSD menu because it can simulate any keystroke sequence, not only the keys but also the time interval between them.

The sequence of keys that must be typed to select a given port is specific to the KVM switch attached to the . However, usually the first two or three keys are fixed and they are followed by a variable sequence that corresponds to the KVM port. For example Scrolllock–Scrolllock–1 to select port 1, Scrolllock–Scrolllock–2 to select port two, and so on (If you need to open an OSD menu, this sequence can be more complex, however can generate anything).

The first fixed part of the command is called here Escape Hot Key Sequence, and the variable part is called Port Selection Sequence.

Enter into the Escape Hot Key Sequence the fixed part of the KVM switch commands. If you have a doubt about the corresponding name for the keys, please refer to the keyboard drawing for reference. You can select up to 4 keys.

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Delay Between Keys

Specify here the delay time in milliseconds (from 10 to 1000 milliseconds) that must wait between keys. This delay is KVM-switch-dependant. Some KVMs are fast and some are sluggish. To work out the optimal delay time, make a few port switching trials with different delay times.

Note: It is also possible to insert a precisely programmed delay between two specific keys if you need to increase the common delay value selected above. To do so, just type d (xxx), xxx being the value in milliseconds up to 1000. For example, d (50) makes a 50 millisecond extra delay.

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KVM Key Sequence for Port Selection

Here you can edit the Port Selection Sequences command strings with the following rules:.

1. Use one separate line for each port, and start from port #1.

2. Separate keycodes and delays with at least one space. Example: 0 1 0 2 d(300) ESC

3. Refer to the keyboard diagram to find out the right keycodes. The keycode for a specific key might not exactly correspond to what you can see on your local keyboard. Also reference the CAUTION warning on the bottom right of this page.

To select a port, generates first the Escape Hot Key Sequence selected above, followed by the Port Selection Sequence into the line corresponding to the port number. This will make up a complete hotkey command for port selection.

For example: let us say that the Escape Hot Key Sequence is Scrolllock – Scrolllock and that in the Port Selection Sequences area you have

1
2
3

7
8

These mean:

send out Scrolllock – Scrolllock – 1 to select port #1
send out Scrolllock – Scrolllock – 2 to select port #2

……………………………………………………………

send out Scrolllock – Scrolllock – 8 to select port #8
 

However, some other command strings you will see in the editable area might seem as complex as 0 1 0 1 d(1000) ESC. For example: in the editable area suppose now you have:

0 1 0 1 d(1000) ESC
In other words, to select port #1: send out ScrollLock–ScrollLock–0-1-0-1, then add a 1000-millisecond delay and then send out an Escape key

0 1 0 2 d(1000) ESC
In other words, to select port #2: send out ScrollLock–ScrollLock–0-1-0-2, then add a 1000-millisecond delay and then send out an Escape key

…………………………………………………………………………………….

0 1 0 8 d(1000) ESC
In other words, to select port #8: send out ScrollLock–ScrollLock–0-1-0-8, then add a 1000-millisecond delay and then send out an Escape key

NB. The hotkey sequence "0 1 0 1 ESC" means switching to bank 01 port 01 and then revoke the OSD menu by an ESC key.

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Store the (new) KVM Model Settings

If you want to suppress the target KVM Switch definition, you can then click the Suppress button to eliminate it from the existing database.

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Suppress this KVM Model

After you have completed your settings of the port switching sequence of your KVM switch, you must hit Store to store the settings to the KVM database.

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