Figure 2: Interconnection Diagram Of The Ht503; Table 2: Ht503 Led Definitions - Grandstream Networks HT503 FXO User Manual

POWER LED
WAN LED
LAN LED
PHONE/ LINE LED
Note: Slow blinking of POWER, WAN, and LAN LEDs together indicate firmware upgrade/provisioning state.
PSTN
Cloud
FIRMWARE VERSION 1.0.12.4

TABLE 2: HT503 LED DEFINITIONS

Indicates Power. Remains ON when power is connected
Indicates LAN (or WAN) port activity
Indicates PC (or LAN) port activity
Indicates the status of the FXS and FXO ports on the back panel.
Busy – ON (Solid Green) Available – OFF
Slow blinking FXS LEDs indicates voicemail for that port.
Internet ADSL/Cable
Modem Ethernet
FXO

FIGURE 2: INTERCONNECTION DIAGRAM OF THE HT503

HT503 USER MANUAL
WAN
FXS
LAN
Analog Phone
Cordless
Fax
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