KX-HDV130RU, KX-HDV130RUB - Panasonic PBX Service Manual (repair manual). Page 8

8

The IC201 is used for the Ethernet interface.
It is connected from (IC201) to the Ethernet port(JK1 and JK2) through a transformer and so is isolated.
Also, LAN port (JK1) gets power from the Ethernet line For PoE (Power over Ethernet) as shown below.
It is connected between (IC201) and the BBIC(IC302) by high-speed bus called RMII(Reduced Media Independent Interface)
bus operating with 50MHz.

PC_RXP

PC_RXM

PC_TXP

PC_TXM

DGND

C207

R205

R206

DGND

DGND

DGND

R207

C208

R208

DGND

DGND

DGND

R209

C209

R210

R212

DGND

DGND

C210

R211

C201

C203

DGND

C204

DGND

C205

DGND

C206

DGND

D201

D202

D203

D204

D205

D206

D207

D208

DGND

T2

1

TD+

8

RD-

6

RD+

2

TCT

3

TD-

16

TX1+

7

RCT

15

TXCT

14

TX1-

11

RX1+

10

RXCT

9

RX-

4

NC1

5

NC2

12

NC3

13

NC4

R269

R271

R266

R267

R273

R268

R275

R270

JK1

1

2

3

4

5

6

7

8

9

JK2

1

2

3

4

5

6

7

8

9

POE-AN

POE-AP

POE-BP

POE-BN

T1

1

8

6

2

3

3

16

16

7

14

14

11

9

15

4

10

13

12

5

T2

T2 

T1 

T1 

1

2

5

8

3

4

6

1

2

4

3

5

To L2AV_1.8V

To Pin4(RXIN0) of IC201

To Pin6(TXOP0) of IC201

To Pin7(TXON0) of IC201

To Pin5(RXIP0) of IC201

6

8

7

9

To Pin13(RXIN1) of IC201 and Pin6(MDI-1) of IC203

To Pin11(TXOP1) of IC201 and Pin 3 (MDI+0) of IC203

To Pin10(TXON1) of IC201 and Pin 4 (MDI-0) of IC203

To Pin12(RXIP1) of IC201 and Pin5 (MDI+1) of IC203

7

9

Power Supply Circuit