▪ To check the far-site audio, ask a call participant to speak or call a phone in the far-site room
to hear it ring.
Occasional peaks of +12 dB to +16 dB with loud transient noises are acceptable. If you see +20
on the audio meter, the audio signal is 0 dBFS and the audio might be distorted. A meter reading
of +20dB corresponds to 0dBFS in the room system audio. A signal at this level is likely clipping
the audio system.
Test Polycom StereoSurround
After you configure the system to use Polycom StereoSurround, you can place a test call to see if it
works.
Make sure the microphones are positioned correctly.
The following setups don’t support stereo audio:
▪ Standalone Studio X30 systems
▪ G7500, Studio X50, and Studio X30 systems paired with Poly Trio systems
Procedure
1.
In the system web interface, go to
Audio/Video
>
Audio
>
Audio Input
.
2.
Gently blow on the left and right leg of each microphone while watching the audio meters to
identify the left and right inputs.
3.
Test the speakers to check volume and verify that audio cables are connected.
If the system is in a call, the far site hears the tone.
4.
Optional: Exchange the right and left speakers if they are reversed.
5.
Adjust the volume control on your external audio amplifier so that the test tone sounds as loud as
a person speaking in the room. If you use a Sound Pressure Level (SPL) meter, it should measure
approximately 80 to 90 dBA in the middle of the room.
6.
Repeat these steps for
Audio Output
.
LED Status Indicators for the System LAN Ports
You can verify network connectivity by looking at the LAN port LEDs on the back of your system.
Each LAN port has two LEDs: The left LED indicates network connectivity and traffic, while the right LED
indicates Power over Ethernet (PoE) status for connected devices.
The G7500 system has four LAN ports: one for the system’s network connection (farthest left) and three
link-local network (LLN) connections for peripheral devices.
LED Status Indicators for the System LAN Ports
Indicator
Left LED Status (Network Traffic)
Right LED Status (Power)*
Off
No connection
No device connected
Solid green
Connected with no traffic
Connected and functioning normally
Blinking green
Connected with traffic
N/A
Solid orange
N/A
Connected but malfunctioning
Troubleshooting
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