Extron electronics VoiceLift Installation Manual page 30

3. (Optional) Install a seismic safety cable at
each speaker location.
a.
Mark, drill, and install a lag eye bolt for the
seismic safety cables (not included) in the
ceiling above the speaker location.
b.
Pass the seismic cable through the anchor
ring down to the nearest seismic tab and twist
the end around the cable five times.
c.
Pass the other end of the cable up through
the lag eye bolt (see step 3a) and twist that
end around the cable five times.
4. Terminate the speaker cable for the
PVS switcher.
To terminate the cable, strip the end of the cable
0.2 inch (5 mm) and secure the wires into the
supplied 4-pole captive screw connector.
NOTE: The correct speaker impedance
loading must be observed when you are
setting up a speaker system (see
on the next page for examples).
24 VoiceLift System with PVS 405D Installation Guide • Installation — Stage 2
Seismic
Anchor
Ring
- Attach the seismic safety cable.
Ý Þ
figure 14
AMPLIFIED OUTPUTS
L
PVS Switcher
Rear Panel
Wire the captive screw connector.
4
Cable Clamp
Adapter ATTENTION:
• Repeated bending of the tab
may cause it to break off.
Top
Terminal
• Le fait de plier l'attache de
Cover
façon répétitive peut la casser.
Locking
Ring
Anchor this end to a
suitable secure point.
Route the seismic
line through the
line retainer and
bendout tab.
Bend Up Tab
Speaker 1 Speaker 2
Audio Output
to Speakers
4-pole Captive
Screw Connector
Speaker To PVS 405D
Wire Color Terminal (Left and
4/8
Right)
Ohms
R
Red Positive (+)
Black Negative (-)
Seismic
Safety
Cable
4-pole Captive
Screw Connector