User Manual Q&AAnswer
Feb 09, 2025 - 08:17 PM
To connect and install the GBX20 Network Extension Module to your Grandstream compatible phone (GRP2615, GRP2624, or GXV3350), please follow these steps:
1. On the back of the GBX20 and your phone, locate the slots for the connector plate.
2. Attach the connector plate between the slots for the GBX20 and the extension board.
3. Use the provided xxxx to securely tighten the connector plate.
4. Connect the extension board to the phone via the EXT port using the USB cable provided.
5. Install both stands on the phone and the GBX20 board.
Note: If you are connecting two or more GBX20 extension modules to the GRP2615/GRP2624/GXV3350, the second GBX20 module needs to be powered on by a 12V/1A PSU.
For more detailed information on installation, please refer to the GBX20 Network Extension Module's user manual.
Source: GRANDSTREAM GBX20 Network Extension Module Installation Guide
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