Figure 1: Connecting The Gxp2120/2110 And The Gxp-Extension - Grandstream Networks GXP21 Series User Manual

F 1: C
IGURE ONNECTING THE
GXP–2120 w/GXP–Extension
Connecting the GXP–2120/2110
w/GXP–Extension
Reverse side of connection w/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.
Powering up the system:
1. The GXP will boot up first;
2. The GXP LEDs will be solid red;
3. The status light in the top right corner of the GXP–Ext will blink red;
4. All of the LED indicators on the GXP–Ext will flash three times;
5. The status light at the top right corner of the GXP–Ext will turn to solid green.
NOTE:
1. 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.
2. Extension for GXP2120/2110 does not support hot-swap. Once connected, user should reboot the
phone to ensure the set up will work correctly.
3. GXP2120/2110 can drive 2 extension modules. Independent power adapters are not needed for
extension modules.
Grandstream Networks, Inc.
GXP2120/2110
AND THE
GXP21xx User Manual
Firmware 1.0.1.26
GXP–E
XTENSION
GXP Extension
Reverse side of connection
w/connection plate
GXP2120/2110 has a special port on
the back.
Page 6 of 42
Last Updated: 11/2010