Wiring and Connections
20 Delta Series Audio Controllers

Preparing the Wires

When working with the SWT connector, only strip away about 1/4” inch (about 6mm) of the insulation
from each wire. Most common electrical problems occur when the wire is stripped too long, and they
short out against neighboring wires behind the wall.
The complete assembly should not have any bare wire visibly exposed from the bottom of the
connector. A quick twist of the copper strands will ensure easy installation into the connector.
Tighten the fastening screw securely.
Ensure that wire strands do not touch neighboring wires on the connectors, as this could result
in malfunction or impede system performance.

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 Red on Pin #1, Black on Pin #2, Green on Pin #3
and White on Pin #4, then it will always be wired correctly between the Delta Controller and the keypad
input. This configuration also places Green as the ground wire - which is consistent with most home
wiring standards. 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 Delta 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 22 for details.
FIG. 13 Orientation of Connectors
Wiring TO the
Wiring FROM
speakers in the
zone connects here
the Delta Controller
connects here
Match the color/position of the wiring
at the Keypad with the wiring at the Controller