Oceed to step, Ff 220t setup guide (continued), Wiring to multiple speakers – Extron Electronics FF 220T Setup Guide User Manual
Page 3: One speaker, Two speakers, Connect wires from the transformer to the speaker, Pr oceed to step 10
3
c.
Strip 3/16” (5 mm) from the wire ends and keep the wire end strands together by twisting them. Do not tin the wires.
d.
Secure the wires to the appropriate taps on the captive screw
connectors of the 7-connector terminal block (on the transformer
side of the cover plate) as indicated on the tap label. See the note
below. The black, negative (-) wire attaches to the “COM” terminal,
and the red, positive (+) wire attaches to the desired terminal tap.
See the diagram at right.
NOTE: Observe the 70 V or 100 V system
designation as indicated on the tap label.
NC
1 W
2 W
4 W
8 W
16 W
COM
70
V
100
V
COM
NC
16 W 8 W
4 W
2 W
1 W
e.
Use a small flat blade screwdriver to tighten the
terminal block screws.
f.
To wire additional speakers, route speaker wires
from the second speaker through the cover plate
hole to the transformer side, and twist the black
negative (-) wires together and twist the red
positive (+) wires together before inserting them into
the terminal block. Additional speakers can be daisy
chained this way, as shown at right.
8.
Connect wires from the transformer to the speaker.
a.
Keep the wire strands together by twisting them (do not tin the wires).
b.
Connect the red positive (+) wire to the + speaker terminal and connect the black negative (-) wire to the - speaker
terminal as shown below.
c.
.
9.
For direct speaker connection, see the block diagram below.
a.
Route the wires from the amplifier to the speaker using the same procedure for routing speaker wire (and conduit if
applicable) through the transformer cover plate as described in steps
(see the wire gauge table on
page
for maximum speaker wire sizes). Strip 3/16 inch (5 mm) from the ends of the two speaker wire leads (+ and -)
coming from the amplifier. Keep the wire strands together by twisting them (do not tin the wires), and secure the wires to
the input terminals of the speaker while observing the correct polarity.
Direct Connection
(bypassing the transformer)
Amplifier
Transformer
FF 220T
b.
Connect the red positive (+) wire to the + speaker terminal and connect the black negative (-) wire to the - speaker
terminal depending on whether one or two speakers are being connected, as shown below.
Red Wire
Black Wire
From Amplifier
One Speaker
From Amplifier
Red Wire
Black Wire
To Second Speaker
From Amplifier
To Second Speaker
Two Speakers
NC
1 W
2 W
4 W
16
W
COM
70
V
100
V
COM
NC
16
W
8 W
4 W
2 W
1 W
8 W
Wiring to a Single Speaker
NC
1 W
2 W
4 W
16
W
COM
70
V
100
V
COM
NC
16
W
8 W
4 W
2 W
1 W
8 W
Wiring to Multiple Speakers
Red Wires
Black Wires
From Amplifier (+)
To Next Speaker (tap)
From Amplifier (-)
To Next Speaker (com)
FF 220T Setup Guide (Continued)