10.4. IC6 (PoE Interface Controller)
Pin
No.
Terminal Name
I/O Setting
Contents of Control
Remark
1
NC
-
No Internal Connection.
2
Rclass
I
Class Select Input.
3
NC
-
No Internal Connection.
4
Vin
I
Power Input. Tie to system -48V through the input
diode bridge.
5
Vout
O
Power Output. Supplies -48V to the PD load through
an internal power MOSFET that limits input current.
VOUT is high impedance until the input voltage rises
above the turn-on UVLO threshold.
The output is then current limited. See Applications
Information.
6
nPWRGD
O
Power Good Output , Open-Drain
Signals to the PD load that the LTC4257-1 MOSFET
is on and that the PD’s DC/DC converter can start
operation. Low impedance indicates power is good.
PWRGD is high impedance during detection,
classification and in the event of a thermal overload.
PWRGD is referenced to VIN.
7
NC
-
No Internal Connection.
8
GND
-
Digital GND
34
KX-NT265X / KX-NT265X-B
Summary of Contents for KX-NT265X
Page 14: ...KX NT265X KX NT265X B 14 ...
Page 17: ...17 KX NT265X KX NT265X B ...
Page 18: ...9 TROUBLESHOOTING GUIDE 9 1 NO OPERATION 18 KX NT265X KX NT265X B ...
Page 19: ... Note Refer to waveform 1 3 and 6 in 17 4 WAVEFORM P 48 19 KX NT265X KX NT265X B ...
Page 20: ...20 KX NT265X KX NT265X B ...
Page 22: ...9 3 HANDSET DOES NOT WORK Receive Send 22 KX NT265X KX NT265X B ...
Page 23: ...9 4 HEADSET DOES NOT WORK Receive Send 23 KX NT265X KX NT265X B ...
Page 24: ...9 5 SPEAKER PHONE DOES NOT WORK Receive Send 24 KX NT265X KX NT265X B ...
Page 35: ...11 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 35 KX NT265X KX NT265X B ...
Page 37: ...13 CABINET AND ELECTRICAL PARTS LOCATION 37 KX NT265X KX NT265X B ...
Page 38: ...14 ACCESSORIES AND PACKING MATERIALS 38 KX NT265X KX NT265X B ...
Page 50: ...IC13 pin2 DATA IC13 pin3 CLK IC13 pin4 LCK 13 LED CIRCUIT 50 KX NT265X KX NT265X B ...
