Extron electronics CS 26T Plus User Manual page 17

In this configuration, all of the speakers downstream of the one being tested are
disconnected from the signal when it is disconnected. This is useful for
troubleshooting in three ways:
The system is sectioned for easier troubleshooting.
•
The source signal can be tested by connecting to the inner + (IN) and – (IN)
•
terminals of the captive screw connector, as shown in figure 16.
Red Wire (+) from Amplifier
Amplifier
Black Wire (-) from Amplifier
Signal Test Points
Figure 16. Signal Test Points — Loop-through Configuration
The impedance of the speakers downstream of the one being tested can be
•
measured while the system is on by connecting to the outer (LOOP) terminals
of the captive screw connector, as shown in figure 17.
Red Wire (+) from Amplifier
Amplifier
Black Wire (-) from Amplifier
Impedance Test Points
Figure 17. Impedance Test Points — Loop-through Configuration
Test Points
Test Points
CS 26T Plus and CS 120P User Guide • Installation
To next speaker(s)
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