Extron Electronics FF 220T User Guide - Manual (Page 10)

When using speaker wires without a conduit — Secure the cable clamp adapter
(included) to the cover plate and insert the wires through the clamp. Tighten the clamp
screws. See the following illustration.
Transformer Cover Plate
Secondary Support Cable
Pass Through Loop
Cable Clamp
Adapter
Rear of Speaker
Figure 5. Wiring Without Conduit
6. Proceed to step 7 (going through the transformer) or 9 (bypassing the transformer) for
the appropriate wiring procedure for either a distributed audio system (70 V or 100 V
line distribution through the transformer) or for a direct connection from an amplifier
(bypassing the transformer).
NOTE: In the 70 V or 100 V distribution system block diagram below, an optional
speaker has been added as an example of daisy chaining FF 220T speakers to a
single amplifier output.
Wiring for Installation in a 70 V or 100 V Audio Distribution System (through
the transformer)
7. Connect cables from the amplifier to the transformer on the FF 220T terminal cover
plate.
Amplifier Transformer
Plate
FF 220T
70 V or 100 V Distribution System
(through the transformer)
FF 220T
An additional FF 220T
can be attached to
to the tap connector.
See step
7f.
Transformer
Plate
Additional
FF 220T
Speaker(s)
Figure 6. 70 V or 100 V Distribution System
a. If a conduit is used, pull the wires from the amplifier through and out of the conduit.
FF 220T User Guide • Installation 6