User Guide
Grandstream Networks, Inc.  GXP User Manual  Page 10 of 44 
       Firmware 1.2.5.3     Last Updated: 03/2011 
Table 6: GXP Hardware Specifications 
LAN Interface (Ethernet 
ports) 
Two (2) 10/100 Mbps Full/Half Duplex Ethernet Switch with LAN and PC port with 
auto detection 
Graphic LCD Display 
GXP-280/285  GXP-1200  GXP-2000  GXP-2010  GXP-2020 
128x32 
pixel 
128x32 pixel  130x64 
pixel
240x120 
pixel
320x160 
pixel
Expansion Module Support 
GXP-280/285  GXP-1200  GXP-2000  GXP-2010  GXP-2020 
No  No  Yes  Yes  Yes 
Headset Jack 
GXP-280/285  GXP-1200  GXP-2000  GXP-2010  GXP-2020 
2.5mm  and 
RJ22 
RJ22  2.5mm  2.5mm and 
RJ22
2.5mm and 
RJ22
Call Appearance LED 
Dual color (green/red) 
GXP-280/285  GXP-
1200 
GXP-2000  GXP-2010  GXP-2020 
No  3  11  22  13 
Power over Ethernet 
Built-in auto-sensing: Cisco and IEEE 802.3af standard: phone  draws 
power from Ethernet (except on GXP-280) 
Universal Switching 
Input: 100-240VAC 50-60 Hz 
Power Adaptor 
Output: +5VDC, 1200mA, UL certified  
Dimension 
GXP-280/285  168mm(l) x 200mm(w) x 89.5mm(h) 
GXP-1200  210mm(l) x 195mm(w) x 77mm(h) 
GXP-2000  220mm(l) x 215mm(w) x 57mm(h) 
GXP-2010  210mm(l) x 250mm(w) x 77mm (h) 
GXP-2020  251mm(l) x 202mm(w) x 77mm(h) 
Weight 
GXP-280/285  GXP-1200  GXP-2000  GXP-2010  GXP-2020 
0.62kg 
(1.37lbs) 
0.86kg 
(1.91lbs) 
0.82kg 
(1.81lbs)
1.1kg 
(2.44lbs) 
1.66kg 
(3.64lbs) 
Temperature 
32 –104
° 
F/ 0 – 40
°
C 
Humidity 
10% – 90% (non-condensing) 
Compliance 
FCC / CE / C-Tick  










