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Introduction
MC4-H2 allows two monitors, 1 keyboard, and 1 mouse to control 4 different PC’s or servers. By chaining up to 3 MC4-
H2’s, up to 12 PC’s can be controlled
General
The MC4-H2 switches both video outputs to display
the selected PC’s video outputs at full resolution
using buffered and wideband video circuits. It also
routes 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 MC4-H2 will locate and identify
the type of mouse plugged into the mouse port and
initialize that mouse. The same will then be done for
the keyboard.
The power supply included with the MC4-H2 will
power up to 3 MC4-H2 units. Only 1 power supply
is need to power 3 MC4-H2 units.
There are 3 ways the MC4-H2 can switch from one PC to another. The first is through the buttons located on the front
panel of the MC4-H2. The second is through a hot-key sequence from the keyboard and the third is through RS-232
control.
The unit supports 2-button, 3-button, and scroll mice. 4-button mice and above are not supported.
When the MC4-H2 is powered up or reset, the PC that was last selected will be selected by default.
There are two different types of LEDs on the front panel. When the LED labeled PWR 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
• Switches two video screens from each PC to user’s console
• Extremely reliable operation with proven firmware for no keyboard or mouse lock ups
• Video outputs are terminated and buffered with wide bandwidth video amplifiers for sharp and crisp image
• Quick and easy 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
• Returns to last selected PC after power off or reset
• Small and compact design
• Only one cable needed to connect to each PC
• Designed and manufactured in the USA
• RS-232 Control