Safety Compliances; Figure 1: Connecting The Gxp2120/2110 And The Gxp Extension Board - Grandstream Networks GXP21XX User Manual

Figure 1: Connecting the GXP2120/2110 and the GXP Extension
GXP2120 with GXP Extension
Reverse side of connection with connection
plate
Connect the first GXP EXT to the GXP2120/2110 using the connection cable found in the GXP Extension
package. The first GXP EXT draws power directly from the phone. Connect the second GXP Extension unit
using the connection plate and the connection cable. The GXP2120/2110 will automatically reboot and
power up the GXP Extensions. Grandstream recommends, though not required, to use a separate power
supply with the second GXP EXT.
NOTE:

Should your system lose power, please unplug your devices and power up the GXP2120/2110 first.

Extension for GXP2120/2110 is the same for GXP2020/2010 models. However, GXP2120/2110
uses a different-shaped connector for the special port (as shown above). Extension cables will be
included with the extension board.

Extension for GXP2120/2110 does not support hot-swap. Once connected, user should reboot the
phone to ensure the set up will work correctly.

GXP2120/2110 can drive 2 extension modules. Independent power adapters are not needed for
extension modules.
S C
AFETY OMPLIANCES
The GXP21xx complies with FCC/CE and various safety standards. The GXP21xx power adaptor is
compliant with the UL standard. Only use the universal power adaptor provided with the GXP21xx package.
The manufacturer's warranty does not cover damages to the phone caused by unsupported power adaptors.
Grandstream Networks, Inc.
GXP Extension
GXP2120/2110 has a special port on
the back
GXP21xx User Manual
Firmware version: 1.0.1.110 Last Updated: 01/2012
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