Panasonic KX-TD500, Installation Manual

Page: 40 / 316

System Outline
40 Installation Manual
1.6.2 Characteristics
Station Loop Limit
Analog, Digital Proprietary Telephone
40 ohms
Single Line Telephone
600 ohms including set
Doorphone
20 ohms
Minimum Leakage Resistance
15,000 ohms
Maximum Number of Station Instruments per Line
1 for Analog, Digital Proprietary Telephone, or Single Line Telephone
2 by Parallel or eXtra Device Port Connection of a Proprietary Telephone and a Single Line
Telephone
Ring Voltage
75 Vrms at 25 Hz depending on the Ringing Load
Primary Power
120 V AC, 60 Hz, 12 A max.
Central Office Loop Limit
1,600 ohms max.
Environmental Requirements
Temperature range: 0 °C – 40 °C (32 °F – 104 °F)
Rel. Humidity: 10 % – 90 % (no condensation)
Switchhook Flash Timing Range
204 – 1,000 milliseconds