Cascade Mode; Figure 6: Connected To Wrong Usb Port; Figure 7: Gac2500 Cascade Mode Screen - Grandstream Networks GAC2500 User Manual

If the GAC2500 is not connected to the SPKR USB interface it will prompt the following message in order
to switch the port on the GVC3200.
Note: If GAC2500 is connecting to PC via Micro-USB but there is no audio output from GAC2500, it
is because the PC uses default audio output in most cases. Please configure GAC2500 as default audio
output.

Cascade Mode

Connect two GAC2500 (s) via RJ48 CAT5 for larger space. Please follow the steps below to connect.
Connect the LAN port of the device to the external network port (the port in the office or at home) via
1.
Ethernet cable;
Connect the RJ48 ports of two devices with RJ48 CAT5;
2.
Plug in two power adapters into the power supply interfaces then power up two devices;
3.
The screen is as shown below. Tap on "Yes" on the first device and set it to be the master while the
4.
other the slave.
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Figure 6: Connected to Wrong USB Port

Figure 7: GAC2500 Cascade Mode Screen

GAC2500 User Guide
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