Specifications: Loop Limit: 2.4 kOmaximum at 48 VDC (nominal 15 mA minimum loopcurrent)
DC Resistance (Talk Mode): 150 Otypical at 80 mA current
AC Impedance (Monitor Mode):
Low impedance (Ring position) 600 Oat 1 KHz typical
High impedance (HI Z position) 100 kOminimum at 1 KHz
Rotary Dial Output: 10 pps .5 pps
Pulsing Rate: 60 % ± 2 %
Percent Break: 800 ms typical
Interdigit Interval Leakage During Break: > 50 kO
DTMF Output: ±1 % maximum
Tone Frequency Error Level per Tone Pair: dBm maximum, - dBm minimum
High versus Low Tone Difference: 4 dB maximum
Temperature:
Operating: -5 degree C to degree C
Storage: -40 degree C to degree C
Drop: 1 meter, 4 times
Altitude: To 3,000 meters (10,000 feet) maximum
Relative Humidity: 10 %to 80 % (non-condensing)
Ports: 12-in-1 USB C Docking Station: Dual 4K HDMI & 1 x VGA, 2 x USB 3.0 ports & 2 x USB 2.0 ports, 1 x 100W PD port, 1 x Gigabit Ethernet LAN, 1 x Audio port, and 1 x SD/TF card reader.