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Media Converters
In standard audio systems, there are two media converter/network switches, one in the
fiber box and one in the control enclosure, that transfer digital audio signal. Looking at
the connections and LED indicators on these devices help with system troubleshooting.
Figure 27: Power & BSP Switches
Typical Component Settings
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Ensure power is connected to green terminal block (Red to V1+, Black to V1-) and
the two BSP DIP switches are both set to ON. Refer to Figure 27.
Verify fiber cables are connected to RX and TX. Refer to Figure 28-3.
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•
Verify Ethernet cable connection(s) from other equipment. Typical connections for
standard systems are as follows:
Fiber Conversion Box: 1 connection to ADC1; see Input/Output Expander (p�24)
•
•
Audio Cabinet Control Enclosure: 10 connections, one for each amplifier
Verifying Network Activity
P1 LED will light amber to indicate the switch has power. Refer to Figure 28-1. If this
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LED does not light:
•
Verify proper connections to power supply (Red to V1+, Black to V1-).
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Verify power supply is supplying 24 VDC.
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Try connecting power to V2 inputs (Red to V2+, Black to V2-), and verify P2 lights.
Port 1 (100M) LED will light solid green to indicate a functional connection between
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the fiber box and control enclosure (switch to switch). Refer to Figure 28-2. If this LED
does not light:
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Switch fiber pairs at the fiber conversion box.
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Test fiber cable, and terminate as necessary.
•
Remove fiber jumpers.
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Verify power and connectivity at the other end of the switch.
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If still not lighting, replace the switch.
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Each Ethernet jack also has an LED that will light green when a cable to other
equipment is connected. Refer to Figure 28-2. If these LEDs are not lighting:
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Check Ethernet cable/connections.
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Verify connection on opposite end of Cat5e cable.
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Connect known working cable and equipment (such as a diagnostic laptop).
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If still not lighting, replace the switch.
Figure 28: LED Indicators & Signal Connections
Troubleshooting
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Table of Contents
Troubleshooting
