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1.5.2 Characteristics
System Outline 1-7
Station Loop Limit KX-T7020 / KX-T7030 / KX-T7050 /
KX-T7055 / KX-T7130 RRRRRRRRRRRRRR 40 Ω
Single Line Telephone RRRRRRRRR 600 Ω including set
Doorphone RRRRRRRRRRRRRRRRRRR 20 Ω
Minimum Leakage Resistance 15 000 ohms
Maximum Number of Station Instruments per Line
1 for a KX-T7130, KX-T7020, KX-T7030, KX-T7050, KX-T7055
or single line telephone
2 by Parallel Connection of a proprietary telephone and a single
line telephone
Ring Voltage 80 Vrms at 20 Hz depending on the Ringing Load
Central Office Loop Limit 1 600 ohms max.
Environmental Requirements 0 °C – 40 °C {32 °F – 104 °F},
10 % – 90 % relative humidity
Hookswitch Flash Time Range 204 ms – 1 000 ms