Grandstream Networks HT502 - Product Overview; Software Features Overview; Table 4: HT502 Technical specifications

P a g e | 15
HT502 User Manual
LED-16
Line inactive
Phone
ON
LED-17
During Provisioning Stage*
Internet /
Phone
500ms ON/OFF
LED-18
During Firmware Recovery Stage*
Internet /
Phone
250ms ON/OFF
LED-19
Line X is registered normally to the sip providers
network and is ready to make a call
Phone
2x1000 ms ON/OFF
+
3sec OFF
Figure 2: HT502 Connection diagram
Internet
ADSL/Cable
WAN
LAN
FXS
Fax
Cordless
Analog Phone
FXS
Fax
Cordless
Analog Phone