PAM Cabling Specifications

This appendix lists the pinouts of the connectors used to connect the port adapter modules (PAMs) to an external network.

All pins not specifically listed are not connected.

See the appendix "ASP Cabling Specifications" of the LightStream 1010 ATM Switch ASP Installation Guide for ATM switch processor (ASP) cable pinouts.

Following is a list of the signal summaries contained in this appendix:

Pinouts to RJ-45 Connection

The UTP port on the 155-UTP PAM is an RJ-45 receptacle. Table B-1 lists the signals for the RJ-45 cable connector.

Pin	Signal	Direction	Description
1	RxD+	<---	Receive data +
2	RxD-	<---	Receive data -
3	NC	---	No connection
4	NC	---	No connection
5	NC	---	No connection
6	NC	---	No connection
7	TxD+	--->	Transmit data +
8	TxD-	--->	Transmit data -

Table B-1: 155-UTP RJ-45 Connector Pinouts

Pin Signal Direction Description

1

RxD+

<---

Receive data +

2

RxD-

<---

Receive data -

3

NC

---

No connection

4

NC

---

No connection

5

NC

---

No connection

6

NC

---

No connection

7

TxD+

--->

Transmit data +

8

TxD-

--->

Transmit data -

Note For additional information, refer to the ATM Forum Physical Medium Specification for 155-Mbps Over Twisted-Pair Cable.

Pinouts to RJ-48c Connection

The T1, E1, CES T1, and CES E1 PAMs are RJ-48c receptacles. Table B-2 lists the signals for the RJ-48c connector.

Pin	Description
1	Receive ring
2	Receive tip
3	No connection
4	Transmit ring
5	Transmit tip
6	No connection
7	No connection
8	No connection

Table B-2: RJ-48c Port Pinouts

Pin Description

1

Receive ring

2

Receive tip

3

No connection

4

Transmit ring

5

Transmit tip

6

No connection

7

No connection

8

No connection

Pinouts to 96-Pin Molex to Twelve Unshielded RJ-45 Connectors

The 25-Mbps port is a 96-pin Molex connector. Table B-3 lists signals used to connect to this port.

Signal	Molex Pin Number	RJ-45 Port Number	RJ-45 Pin Number	Description
RXA3	1	3	1	Receive data +
RXB3	2	3	2	Receive data -
GND	3	NC	NC	No connection
GND	4	NC	NC	No connection
TXA3	5	3	7	Transmit data +
TXB3	6	3	8	Transmit data -
GND	7	NC	NC	No connection
GND	8	NC	NC	No connection
RXA7	9	7	1	Receive data +
RXB7	10	7	2	Receive data -
GND	11	NC	NC	No connection
GND	12	NC	NC	No connection
TXA7	13	7	7	Transmit data +
TXB7	14	7	8	Transmit data -
GND	15	NC	NC	No connection
GND	16	NC	NC	No connection
RXA11	17	11	1	Receive data +
RXB11	18	11	2	Receive data -
GND	19	NC	NC	No connection
GND	20	NC	NC	No connection
TXA11	21	11	7	Transmit data +
TXB11	22	11	8	Transmit data -
GND	23	NC	NC	No connection
GND	24	NC	NC	No connection
RXA10	25	10	1	Receive data +
RXB10	26	10	2	Receive data -
GND	27	NC	NC	No connection
GND	28	NC	NC	No connection
TXA10	29	10	7	Transmit data +
TXB10	30	10	8	Transmit data -
GND	31	NC	NC	No connection
GND	32	NC	NC	No connection
RXA6	33	6	1	Receive data +
RXB6	34	6	2	Receive data -
GND	35	NC	NC	No connection
GND	36	NC	NC	No connection
TXA6	37	6	7	Transmit data +
TXB6	38	6	8	Transmit data -
GND	39	NC	NC	No connection
GND	40	NC	NC	No connection
TXB2	41	2	8	Transmit data -
TXA2	42	2	7	Transmit data +
GND	43	NC	NC	No connection
GND	44	NC	NC	No connection
RXB2	45	2	2	Receive data -
RXA2	46	2	1	Receive data +
GND	47	NC	NC	No connection
RXA6	48	NC	NC	No connection
RXA1	49	1	1	Receive data +
RXB1	50	1	2	Receive data -
GND	51	NC	NC	No connection
GND	52	NC	NC	No connection
TXA1	53	1	7	Transmit data +
TXB1	54	1	8	Transmit data -
GND	55	NC	NC	No connection
GND	56	NC	NC	No connection
RXA4	57	4	1	Receive data +
RXB4	58	4	2	Receive data -
GND	59	NC	NC	No connection
GND	60	NC	NC	No connection
TXA4	61	4	7	Transmit data +
TXB4	62	4	8	Transmit data -
GND	63	NC	NC	No connection
GND	64	NC	NC	No connection
RXA9	65	9	1	Receive data +
RXB9	66	9	2	Receive data -
GND	67	NC	NC	No connection
GND	68	NC	NC	No connection
TXA9	69	9	7	Transmit data +
TXB9	70	9	8	Transmit data -
GND	71	NC	NC	No connection
GND	72	NC	NC	No connection
RXA8	73	8	1	Receive data +
RXB8	74	8	2	Receive data -
GND	75	NC	NC	No connection
GND	76	NC	NC	No connection
TXA8	77	8	7	Transmit data +
TXB8	78	8	8	Transmit data -
GND	79	NC	NC	No connection
GND	80	NC	NC	No connection
TXB5	81	5	8	Transmit data -
TXA5	82	5	7	Transmit data +
GND	83	NC	NC	No connection
GND	84	NC	NC	No connection
RXB5	85	5	2	Receive data -
RXA5	86	5	1	Receive data +
GND	87	NC	NC	No connection
GND	88	NC	NC	No connection
TXB0	89	0	8	Transmit data -
TXA0	90	0	7	Transmit data +
GND	91	NC	NC	No connection
GND	92	NC	NC	No connection
RXB0	93	0	2	Receive data -
RXA0	94	0	1	Receive data +
GND	95	NC	NC	No connection
GND	96	NC	NC	No connection

Table B-3: 96 Pin Molex to Twelve RJ-45 Connectors Pinout

Signal Molex
Pin Number RJ-45
Port Number RJ-45
Pin Number Description

RXA3

1

3

1

Receive data +

RXB3

2

3

2

Receive data -

GND

3

NC

NC

No connection

GND

4

NC

NC

No connection

TXA3

5

3

7

Transmit data +

TXB3

6

3

8

Transmit data -

GND

7

NC

NC

No connection

GND

8

NC

NC

No connection

RXA7

9

7

1

Receive data +

RXB7

10

7

2

Receive data -

GND

11

NC

NC

No connection

GND

12

NC

NC

No connection

TXA7

13

7

7

Transmit data +

TXB7

14

7

8

Transmit data -

GND

15

NC

NC

No connection

GND

16

NC

NC

No connection

RXA11

17

11

1

Receive data +

RXB11

18

11

2

Receive data -

GND

19

NC

NC

No connection

GND

20

NC

NC

No connection

TXA11

21

11

7

Transmit data +

TXB11

22

11

8

Transmit data -

GND

23

NC

NC

No connection

GND

24

NC

NC

No connection

RXA10

25

10

1

Receive data +

RXB10

26

10

2

Receive data -

GND

27

NC

NC

No connection

GND

28

NC

NC

No connection

TXA10

29

10

7

Transmit data +

TXB10

30

10

8

Transmit data -

GND

31

NC

NC

No connection

GND

32

NC

NC

No connection

RXA6

33

6

1

Receive data +

RXB6

34

6

2

Receive data -

GND

35

NC

NC

No connection

GND

36

NC

NC

No connection

TXA6

37

6

7

Transmit data +

TXB6

38

6

8

Transmit data -

GND

39

NC

NC

No connection

GND

40

NC

NC

No connection

TXB2

41

2

8

Transmit data -

TXA2

42

2

7

Transmit data +

GND

43

NC

NC

No connection

GND

44

NC

NC

No connection

RXB2

45

2

2

Receive data -

RXA2

46

2

1

Receive data +

GND

47

NC

NC

No connection

RXA6

48

NC

NC

No connection

RXA1

49

1

1

Receive data +

RXB1

50

1

2

Receive data -

GND

51

NC

NC

No connection

GND

52

NC

NC

No connection

TXA1

53

1

7

Transmit data +

TXB1

54

1

8

Transmit data -

GND

55

NC

NC

No connection

GND

56

NC

NC

No connection

RXA4

57

4

1

Receive data +

RXB4

58

4

2

Receive data -

GND

59

NC

NC

No connection

GND

60

NC

NC

No connection

TXA4

61

4

7

Transmit data +

TXB4

62

4

8

Transmit data -

GND

63

NC

NC

No connection

GND

64

NC

NC

No connection

RXA9

65

9

1

Receive data +

RXB9

66

9

2

Receive data -

GND

67

NC

NC

No connection

GND

68

NC

NC

No connection

TXA9

69

9

7

Transmit data +

TXB9

70

9

8

Transmit data -

GND

71

NC

NC

No connection

GND

72

NC

NC

No connection

RXA8

73

8

1

Receive data +

RXB8

74

8

2

Receive data -

GND

75

NC

NC

No connection

GND

76

NC

NC

No connection

TXA8

77

8

7

Transmit data +

TXB8

78

8

8

Transmit data -

GND

79

NC

NC

No connection

GND

80

NC

NC

No connection

TXB5

81

5

8

Transmit data -

TXA5

82

5

7

Transmit data +

GND

83

NC

NC

No connection

GND

84

NC

NC

No connection

RXB5

85

5

2

Receive data -

RXA5

86

5

1

Receive data +

GND

87

NC

NC

No connection

GND

88

NC

NC

No connection

TXB0

89

0

8

Transmit data -

TXA0

90

0

7

Transmit data +

GND

91

NC

NC

No connection

GND

92

NC

NC

No connection

RXB0

93

0

2

Receive data -

RXA0

94

0

1

Receive data +

GND

95

NC

NC

No connection

GND

96

NC

NC

No connection

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