Final Connection of the System
With all the speaker wires and the sensor cable neatly routed to the amplifier, we are
ready to complete the installation.
Connecting the Dome Sensor
•
Coil up the excess cable (if there is excess) and place it out of view
•
Plug the sensor into any one of the sensor input jacks (RCA)
Connect the auxiliary audio sources
•
The auxiliary input jacks are dual RCA. They are labeled on the back
corresponding to the volume control on the front panel. Interconnect to
each source using a shielded cable with the proper connectors.
•
You can use stereo connectors into the Spectrum’s dual inputs. The two
channels will be summed so both channels will be passed through
Connecting the Speakers
•
Cut the speaker wires to the proper length.
•
Split the cable and strip approximately inch off each wire.
•
Twist the stranded wire and if you have a soldering iron, it is a good
practice to tin the wire ends.
•
It is important to observe speaker polarity
•
Unplug the phoenix connector and insert the positive wire (one with
TeachLogic imprinted) into either outside screw terminal. Insert other wire
into the next slot. Tighten the set screw. Do same for all speakers.
o
If you are using more than four speakers, connect the additional
speaker into the other two slots of the phoenix connector. Be sure
to observe the polarity, insert the labeled lead configuration will
parallel the two speakers connected.
o
Plug speaker phoenix block into the amplifier speaker output
terminal.
Page Over-ride / Pass Through Feature
The page over-ride feature allows you to connect a speaker level signal to the
page over-ride input and the system will mute all the inputs and pass the page
through into the classroom.
•
Unplug the two-terminal phoenix connector.
•
Connect the speaker cable from the paging system to the phoenix
connector.
•
Determine the signal level of the paging system (8
Ω
, 25 v, 70 v, or 100 v).
•
Set the slide switch to the appropriate speaker level setting.
•
Plug the phoenix connector into the page over-ride jack
•
With the Spectrum II turned “ON”, send a page signal through the page
input.
•
Adjust the page volume in the room to the desired listening level using the
gain control on back panel.
