DOWNLOAD Panasonic KX-NT553RU-B / KX-NT556RU-B Service Manual ↓ Size: 5.41 MB | Pages: 97 in PDF or view online for FREE

Model
KX-NT553RU-B KX-NT556RU-B
Pages
97
Size
5.41 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / IP PROPRIETARY TELEPHONE
File
kx-nt553ru-b-kx-nt556ru-b.pdf
Date
PREV: Panasonic KX-NT551RU-B Service Manual

Panasonic KX-NT553RU-B / KX-NT556RU-B Service Manual ▷ View online

69
KX-NT553RU/KX-NT553RU-B/KX-NT556RU/KX-NT556RU-B
12.6.2.
 No.(6)-(10)
ASIC(I2C) SIGNAL
SDA
CLK
RESET
Pin 4 of Q301
MDIO SIGNAL
MDIO
MDC
DDR Clock SIGNAL
ASIC Clock SIGNAL
7
8
9
10
PoE Switching Regulator SIGNAL
6
70
KX-NT553RU/KX-NT553RU-B/KX-NT556RU/KX-NT556RU-B
12.6.3.
No.(11)-(15(1))
(11) SWITCH IC (IC301) CLOCK
(12) SWITCH IC(IC301) TX (1)
(12) SWITCH IC (IC301) TX (2)
IC301 pin117  CLOCK 125MHz
1. IC301 pin86 E_TXCLK       2. IC301 pin88 E_TXD0
1. IC301 pin88 E_TXD0 
     2. IC301 pin89 E_TXD1
3. IC301 pin90 E_TXD2 
     4. IC301 pin91 E_TXD3
(13) SWITCH IC (IC301) RX (1)
1. IC301 pin83  E_RXCLK       2. IC301 pin82   E_RXDV
3. IC301 pin81  E_RXD0
(13) SWITCH IC (IC301) RX (2)
(14) LAN port TX (10Base) (1)
(14) LAN port TX (10Base) (2)
1. IC301 pin81 E_RXD0 
     2. IC301 pin80 E_RXD1
3. IC301 pin79 E_RXD2 
     4. IC301 pin78 E_RXD3
Between pin1 and pin2 of JK302
Between pin125 and pin126 of IC301
(15) LAN port RX (10Base) (1)
Between pin3 and pin6 of JK302
71
KX-NT553RU/KX-NT553RU-B/KX-NT556RU/KX-NT556RU-B
12.6.4.
No.(15(2))-(19(1))
(15) LAN port RX (10Base) (2)
(16) PC port TX (10Base) (1)
(16) PC port TX (10Base) (2)
Between pin127 and pin128 of IC301
Between pin1 and pin2 of JK301
Between pin8 and pin9 of IC301
(17) PC port RX (10Base) (1)
Between pin3 and pin6 of JK301
(17) PC port RX (10Base) (2)
(18) LAN port TX (100Base) (1)
(18) LAN port TX (100Base) (2)
Between pin10 and pin11 of IC301
Between pin1 and pin2 of JK302
Between pin125 and pin126 of IC301
(19) LAN port RX (100Base) (1)
Between pin3 and pin6 of JK302
72
KX-NT553RU/KX-NT553RU-B/KX-NT556RU/KX-NT556RU-B
12.6.5.
No.(19(2))-(23)
(19) LAN port RX (100Base) (2)
(20) PC port TX (100Base) (1)
(20) PC port TX (100Base) (2)
Between pin127 and pin128 of IC301
Between pin1 and pin2 of JK301
Between pin8 and pin9 of IC301
(21) PC port RX (100Base) (1)
(21) PC port RX (100Base) (2)
Between pin3 and pin6 of JK301
Between pin10 and pin11 of IC301
(22) LAN port TX/RX (1000Base) (1)
(22) LAN port TX/RX (1000Base) (2)
Between pin1 and pin2 of JK302
Between pin125 and pin126 of IC301
(23) PC port TX/RX (1000Base) (1)
Between pin1 and pin2 of JK301
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