Panasonic KX-TDA50 User Manual
1.4 Specifications
Installation Manual
27
1.4.2
Characteristics
Terminal Equipment Loop Limit
•
PT: KX-T7600 series DPT: 90
Ω; all other DPTs/APTs: 40 Ω
•
SLT: 600
Ω including set
•
Doorphone: 20
Ω
•
PT-interface CS: 65
Ω
Minimum Leakage Resistance
15 000
Ω minimum
Maximum Number of Extension
Instruments per Line
Instruments per Line
1 for PT or SLT
2 by Parallel or eXtra Device Port connection of a PT and an SLT
3 by Digital eXtra Device Port connection of 2 DPTs and an SLT
Ring Voltage
75 Vrms at 20 Hz/25 Hz depending on the Ringing Load
Central Office Loop Limit
1600
Ω maximum
Hookswitch Flash Timing Range
24 ms to 2032 ms
Door Opener Current Limit
24 V DC/30 V AC, 1 A maximum
External Relay Current Limit
24 V DC/30 V AC, 1 A maximum
External Sensor Current Limit
Power to the external sensor is provided from the DPH4 card and must be
grounded through the DPH4 card. For the connection diagram, refer to
"2.5.1 DPH4 Card (KX-TDA5161)". The Hybrid IP-PBX detects input from
the sensor when the signal is under 100
grounded through the DPH4 card. For the connection diagram, refer to
"2.5.1 DPH4 Card (KX-TDA5161)". The Hybrid IP-PBX detects input from
the sensor when the signal is under 100
Ω.
Paging Terminal Impedance
600
Ω
MOH Terminal Impedance
10 000
Ω