1.4 Specifications
Installation Manual 25
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
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
Trunk Loop Limit 1600 Ω maximum
Hookswitch Flash/Recall Timing
Range
24 ms to 2032 ms
BRI Cards Internal ISDN Mode Supply Voltage: 40 V
Power Supply: 4.5 W per 1 line, 5 W per 2 lines
Power Supply Method: Phantom Power Supply
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 or DPH2 card and
must be grounded through the DPH4 or DPH2 card. For the connection
diagram, refer to "2.5.1 DPH4 Card (KX-TDA3161)" or "2.5.2 DPH2 Card
(KX-TDA3162)". 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
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