Hardware Specification
The table below lists the hardware specification of HT503.
Table 5: HT503 Hardware specification
FXO telephone port
(PSTN Port)
1x PSTN pass-through and life line port
Power, WAN, LAN, PHONE, and LINE (Green)
Universal Switching
Power Adaptor
Input: 100–240 VAC, 50-60 Hz
Output: 12VDC, 0.5A, UL certified
25mm x 115mm x 75mm (when laying flat);
115mm x 25mm x 75mm (standing up)
Approximately 0.6lbs (0.3kg)
Operational: 32° - 104°F or 5° – 45°C
Storage: 10°–130°F
10% - 90%
(non-condensing)