Midi; Figure 11: Connecting Multiple Cmk Keyboards, Rear View, Using Parallel Wiring And Included Power Supply - Classic Organ Works CMK-1 User Manual

Figure 11: Connecting Multiple CMK Keyboards, Rear View, Using Parallel Wiring and Included Power Supply

However, if multiple keyboards are used or if the CMK is to be mounted inside an organ console, the 4-input terminal
block can be connected to an existing organ power supply. Power and ground are connected to terminal block inputs 1
and 2 respectively. Terminal block inputs 3 and 4 are for grounding the case. One power supply can power up to three
CMK keyboards by paralleling the terminal block connections.
The CMK has a number of safety features. For easy operation, an isolated +12 Volt, DC adaptor of either positive or
negative polarity may be used. It must have a 2.1mm co-axial power jack. A bridge-rectifier is present within the
CMK to ensure the proper polarity. A 500mA self-resetting Polyfuse provides over-current protection from the
common power supply.

MIDI

The CMK has one MIDI input and four paralleled MIDI outputs so that it can be connected to several MIDI devices
and/or a personal computer. All four MIDI OUT connectors produce the same messages and can be used for long
distance applications. The MIDI IN connector allows another MIDI source to be merged with the MIDI signal from
this unit.
Figure 12: MIDI Connection Jacks, Rear View
TM
The CMK has the capability to simultaneously drive up to four different Ahlborn Archive Series modules. These
can be controlled through the general pistons on the CMK. Thus, additional stops and sounds on multiple Ahlborn
Archive modules may be controlled as though they were part of the organ.
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CMK-1 Manual (Issue-1) October 20, 2004