Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

10/100BASE-T LAN MAGNETICS

©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01

LM00405

Dual Transformer Modules

SCHEMATICS

S558-5999-A4

S558-5999-A6

S558-5999-A8

S558-5999-A9

1CT : 1CT

1CT : 1

1CT : 1

1CT : 1CT

2

3

4

6

7

8

RD1+

RCT1

RD1-

TD1+

TCT1

TD1-

12

13

14

TD2-

TCT2

TD2+

16

17

18

RD2-

RCT2

RD2+

39

38

37

RX1-

RCMT1

RX1+

35

34

33

TX1-

TCMT1

TX1+

25

24

23

TX2-

TCMT2

TX2+

29

28

27

RX2-

RCMT2

RX2+

1CT : 1CT

1CT : 1

1CT : 1

1CT : 1CT

2

3

4

6

7

8

RD1+

RCT1

RD1-

TD1+

TCT1

TD1-

12

13

14

TD2-

TCT2

TD2+

16

17

18

RD2-

RCT2

RD2+

35

34

33

RX1-

RCMT1

RX1+

39

38

37

TX1-

TCMT1

TX1+

29

28

27

TX2-

TCMT2

TX2+

25

24

23

RX2-

RCMT2

RX2+

2

3

4

RD1+

RCT1

RD1-

6

7

8

TD1+

TCT1

TD1-

12

13

14

TD2-

TCT2

TD2+

16

17

18

RD2-

RCT2

RD2+

27

28

29 RX2-

RCMT2

RX2+

23

24

25 TX2-

TCMT2

TX2+

33

34

35 TX1-

TCMT1

TX1+

39

38

37

RX1-

RCMT1

RX1+

1CT : 1CT

1CT : 1CT

1CT : 1CT

1CT : 1CT

2

3

4

RD1+

RCT1

RD1-

6

7

8

TD1+

TCT1

TD1-

12

13

14

TD2-

TCT2

TD2+

16

17

18

RD2-

RCT2

RD2+

23

24

25 RX2-

RCMT2

RX2+

27

28

29 TX2-

TCMT2

TX2+

37

38

39 TX1-

TCMT1

TX1+

35

34

33

RX1-

RCMT1

RX1+

1CT : 1CT

1CT : 1CT

1CT : 1CT

1CT : 1CT

L4-15