Hall Research 4-to-1KVM User Manual

Hall Research Technologies, Inc

1163 Warner Ave.

Tustin, CA 92780

Phone: [phone]

Fax: [phone]

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Model 4-to-1 KVM

Server Switch

Control 4 PC's from one keyboard, monitor and mouse

UMA1018 Rev. n/c

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General

4-to-1 KVM

different PC’s or servers.

It switches the video to display the selected PC’s video output at full
resolution using buffered and wideband video circuits. It also routs
the signals from the mouse and keyboard to the selected pc, while, at
the same time, emulating a keyboard and a mouse for the unselected
PCs so that they can detect and communicate with a “virtual” mouse
and keyboard in order for the PCs to operate normally.

Upon power up the
mouse plugged into the mouse port and initialize that mouse. The same will then be done for the keyboard.

Even though it has a connector for an external power supply, this unit draws power from the connected PC’s
and no power supply is needed. The external power supply is only used if a special keyboard (such as one
with a bar-code reader) that has a high power requirement is used.

There are 3 ways the
located on the front panel of the Switch. The second is through a hot-key sequence from the keyboard and
the third is through an external device called the MC4-HRT.

The unit supports 2-button, 3-button, and scroll mice. 4-button mice are not supported.

When the

allows one monitor keyboard, and mouse to control 4

4-to-1 KVM

4-to-1 KVM

4-to-1 KVM

is powered up or reset, the PC that was last selected will be selected by default.

will locate and identify the type of

can switch from one PC to another. The first is through the buttons

There are two different types of LEDs on the front panel. When the LED labeled ON is illuminated then the
PC attached to that port is powered on. When the LED labeled SEL is illuminated, then the PC attached to
that port is the selected PC. The selected PC is the PC currently being controlled by then keyboard and
mouse.

Supported Systems and Peripherals

• All PC compatible systems and notebooks

• Standard PS/2 and AT Keyboards (Legacy AT keyboards may require connector adapters)

• Standard (2-button) and wheel (3-button) (e.g. Microsoft Intellimouse) mice. 4-button mice are not

supported.

• VGA, XGA, UXGA video resolutions to 1600x1200 at 50 to 85 Hz refresh rate.

Features

• Clear and sharp video switching

• Extremely Reliable

• Quick and seamless switching between PC’s

• LED indicators of PC power status and PC selected

• Comprehensive PS/2 protocol emulation for keyboard and mouse for all PC’s at all times

• Hot-swapping capabilities of the PC’s and the devices

• Error detection and recovery protocols

• Returns to last selected PC after power off or reset

• Small and compact design

• Designed and manufactured in the USA