Wiring and Connections
19
Mi Series Audio Controllers
Connecting Matrix Keypads
Wire Color Schemes
It’s not particularly important to denote any one color as any one particular conductor. What is, however,
of critical importance is consistency in your wiring scheme with respect to which color goes into which
position.
For example, if you always start left to right and use White on Pin #1, Green on Pin #2, Black on Pin #3
and Red on Pin #4, then it will always be wired correctly between the Controller and the keypad input.
Although the actual colors in the example are not absolute, it’s important that those colors follow the
same left to right position in each connector location at both the right side of the keypad and the
Controller. The most common installation errors are caused from not following a consistent wire color
and pin location format.
Speakers are wired according to their positive and negative terminals, which are usually Red and Black
for each speaker, and those will be connected into the connector on the left side of the keypad. See the
Connecting Matrix In-Ceiling Speakers section on page 20 for details.
Zone Connections
The cables that run from each of the keypads connect to the Mi Series Controller via the same Molex
connectors used at the keypads. In this case, the connectors will not already be installed in the Mi Series
Controller but will be found in a bag in the equipment box. FIG. 10 provides a Molex Connector Legend
Installation into the Wall Cavity
1.
After wiring is complete, simply push the wiring back into the wall cavity and make sure there is
enough room for the Matrix keypad to comfortably fit into the opening.
2. Once the keypad wiring is connected and correctly plugged in, install the keypad into the wall cavity
with the supplied screws. Make sure there is no binding of the wiring and that the keypad fits
without forcing it into the opening.
3. Once the keypad had been set into the wall opening, line up the mounting holes with the receiving
threaded holes in the wall plate (or electrical box).
4. Begin threading the top and bottom screws by hand and finish with a screwdriver.
5. After the keypad is secure, proceed with the installation of the decorative trim panel (FIG. 11).
FIG. 10 Molex Connector Legend
Right +
Ground (-)
Left +
DATA
When stripping cable for use with the Molex connector, only strip away about ¼”
(6mm) of the insulation from each wire. The complete assembly should not have
more than 1/32” (1mm) of bare wire exposed from the bottom of the connector.
Do not force the keypad up against wiring or other obstructions if it cannot fit flush to
the mounting holes because damage can occur to the circuit board of the keypad.
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