Characteristics - Panasonic KX-TD308 Installation Manual

1.5 Specifications
1.5.2

Characteristics

Station Loop Limit
Minimum Leakage Resistance
Maximum Number of Station Instruments per Line
Ring Voltage
Central Office Loop Limit
Environmental Requirements
Hookswitch Flash Timing Range
1-8 System Outline
KX-T7420 / KX-T7425 / KX-T7431 / KX-T7433 / KX-T7436 /
KX-T7220 / KX-T7230 / KX-T7235 / KX-T7250 / KX-T7020 /
KX-T7030 / KX-T7050 / KX-T7055 / KX-T7130 .........40 ohms
Standard Telephone..................................600 ohms including set
Doorphone................................................20 ohms
15,000 ohms
1 for KX-T7420, KX-T7425, KX-T7431,
KX-T7433, KX-T7436, KX-T7220, KX-T7230,
KX-T7235, KX-T7250, KX-T7130, KX-T7020,
KX-T7030, KX-T7050, KX-T7055 or standard
telephone
2 by Parallel or eXtra Device Port Connection of a
proprietary telephone and a standard telephone
80 Vrms at 25 Hz depending on the
Ringing Load
1,600 ohms max.
0 – 40 °C / 32 – 104 °F, 10 – 90% relative humidity
204 – 1,000 milliseconds