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Cable and Ethernet Specifications        B


This appendix gives specifications for the following:

Male-to-Male Null Modem Cable

 Table B-1 gives pinout information for a DB-25 serial male-to-male null modem cable. Pins not listed have no connection.

 
Table B-1 Male-to-Male Null Modem Cable Pinout

PortMaster

Serial Port (C0)

 

Terminal

Serial Port

DB-25

(DTE)

Signal

Definition

Direction to or from the PortMaster

DB-25

(DTE)

Pin

DB-9

(DTE)

Pin

Signal

2

TXD

Transmit Data

Output

3

2

RXD

3

RXD

Receive Data

Input

2

3

TXD

4

RTS

Request to Send

Output

5

8

CTS

5

CTS

Clear to Send

Input

4

7

RTS

6, 8

DCD

Data Carrier Detect

Input

20

4

DTR

7

GND

Signal Ground

 

7

5

GND

20

DTR

Data Terminal Ready

Output

6, 8

6, 1

DCD

Male-to-Male Straight-Through RS-232 Cable

 Table B-2 gives pinout information for a male-to-male straight-through RS-232 cable. Pins not listed have no connection.

 
Table B-2 Straight-through Cable Pinout

PortMaster

Serial Port (C0)

 

Terminal

Serial Port

DB-25

(DTE)

Signal

Definition

Direction to or from the PortMaster

DB-25

(DCE)

Pin

DB-9

(DCE)

Pin

Signal

2

TXD

Transmit Data

Output

2

3

TXD

3

RXD

Receive Data

Input

3

2

RXD

4

RTS

Request to Send

Output

4

7

RTS

5

CTS

Clear to Send

Input

5

8

CTS

6

DSR

Data Set Ready

 

6

6

DSR

7

GND

Signal Ground

 

7

5

GND

8

DCD

Data Carrier Detect

Input

8

1

DCD

20

DTR

Data Terminal Ready

Output

20

4

DTR

High-Density 68-Pin Cable

 Table B-3 gives pinout information for eight straight-through RS-232 cables with a 68-pin high-density connector and eight DB-25 connectors. This cable is used on the PortMaster 25 only.

To order this cable from Lucent, specify product code DC-8DB.

 
Table B-3 High-Density 68-Pin-to-Eight DB-25 Cable-PM-25 only

Port

Signal

Definition

68-Pin

Connector Pin

RS-232 Cable

DSub (male) Pin

1

RTS

Request to Send

2

1

4

 

DTR

Data Terminal Ready

36

1

20

 

TXD

Transmit Data

3

1

2

 

SGND

Signal Ground

37

1

7

 

DSR

Data Set Ready

4

1

6

 

RXD

Receive Data

38

1

3

 

DCD

Data Carrier Detect

5

1

8

 

CTS

Clear to Send

39

1

5

2

RTS

Request to Send

6

2

4

 

DTR

Data Terminal Ready

40

2

20

 

TXD

Transmit Data

7

2

2

 

SGND

Signal Ground

41

2

7

 

DSR

Data Set Ready

8

2

6

 

RXD

Receive Data

42

2

3

 

DCD

Data Carrier Detect

9

2

8

 

CTS

Clear to Send

43

2

5

3

RTS

Request to Send

10

3

4

 

DTR

Data Terminal Ready

44

3

20

 

TXD

Transmit Data

11

3

2

 

SGND

Signal Ground

45

3

7

 

DSR

Data Set Ready

12

3

6

 

RXD

Receive Data

46

3

3

 

DCD

Data Carrier Detect

13

3

8

 

CTS

Clear to Send

47

3

5

4

RTS

Request to Send

14

4

4

 

DTR

Data Terminal Ready

48

4

20

 

TXD

Transmit Data

15

4

2

 

SGND

Signal Ground

49

4

7

 

DSR

Data Set Ready

16

4

6

 

RXD

Receive Data

50

4

3

 

DCD

Data Carrier Detect

17

4

8

 

CTS

Clear to Send

51

4

5

5

RTS

Request to Send

18

5

4

 

DTR

Data Terminal Ready

52

5

20

 

TXD

Transmit Data

19

5

2

 

SGND

Signal Ground

53

5

7

 

DSR

Data Set Ready

20

5

6

 

RXD

Receive Data

54

5

3

 

DCD

Data Carrier Detect

21

5

8

 

CTS

Clear to Send

55

5

5

6

RTS

Request to Send

22

6

4

 

DTR

Data Terminal Ready

56

6

20

 

TXD

Transmit Data

23

6

2

 

SGND

Signal Ground

57

6

7

 

DSR

Data Set Ready

24

6

6

 

RXD

Receive Data

58

6

3

 

DCD

Data Carrier Detect

25

6

8

 

CTS

Clear to Send

59

6

5

7

RTS

Request to Send

26

7

4

 

DTR

Data Terminal Ready

60

7

20

 

TXD

Transmit Data

27

7

2

 

SGND

Signal Ground

61

7

7

 

DSR

Data Set Ready

28

7

6

 

RXD

Receive Data

62

7

3

 

DCD

Data Carrier Detect

29

7

8

 

CTS

Clear to Send

63

7

5

8

RTS

Request to Send

30

8

4

 

DTR

Data Terminal Ready

64

8

20

 

TXD

Transmit Data

31

8

2

 

SGND

Signal Ground

65

8

7

 

DSR

Data Set Ready

32

8

6

 

RXD

Receive Data

66

8

3

 

DCD

Data Carrier Detect

33

8

8

 

CTS

Clear to Send

67

8

5

 

High-Density 50-Pin Cable

A 3-foot (90cm) long cable that splits into two 50-pin high-density connectors is required for use with a U.S. Robotics Quad modem rack. To order this cable from Lucent, specify product code DC-HDM.

 Table B-4 gives pinout information for this cable.  

Table B-4 High-Density 50-Pin Cable

Quad

Port

Signal

Definition

68-Pin

Number

Connection

Pin

A

1

RTS

Request to Send

2

1

3

 

 

DTR

Data Terminal Ready

36

1

5

 

 

TXD

Transmit Data

3

1

1

 

 

SGND

Signal Ground

37

1

7

 

 

DSR

Data Set Ready

4

1

11

 

 

RXD

Receive Data

38

1

2

 

 

DCD

Data Carrier Detect

5

1

6

 

 

CTS

Clear to Send

39

1

4

 

2

RTS

Request to Send

6

1

28

 

 

DTR

Data Terminal Ready

40

1

30

 

 

TXD

Transmit Data

7

1

26

 

 

SGND

Signal Ground

41

1

32

 

 

DSR

Data Set Ready

8

1

36

 

 

RXD

Receive Data

42

1

27

 

 

DCD

Data Carrier Detect

9

1

31

 

 

CTS

Clear to Send

43

1

29

 

3

RTS

Request to Send

10

1

40

 

 

DTR

Data Terminal Ready

44

1

42

 

 

TXD

Transmit Data

11

1

38

 

 

SGND

Signal Ground

45

1

44

 

 

DSR

Data Set Ready

12

1

48

 

 

RXD

Receive Data

46

1

39

 

 

DCD

Data Carrier Detect

13

1

43

 

 

CTS

Clear to Send

47

1

41

 

4

RTS

Request to Send

14

1

17

 

 

DTR

Data Terminal Ready

48

1

17

 

 

TXD

Transmit Data

15

1

13

 

 

SGND

Signal Ground

49

1

19

 

 

DSR

Data Set Ready

16

1

23

 

 

RXD

Receive Data

50

1

14

 

 

DCD

Data Carrier Detect

17

1

18

 

 

CTS

Clear to Send

51

1

16

B

5

RTS

Request to Send

18

2

3

 

 

DTR

Data Terminal Ready

52

2

5

 

 

TXD

Transmit Data

19

2

1

 

 

SGND

Signal Ground

53

2

7

 

 

DSR

Data Set Ready

20

2

11

 

 

RXD

Receive Data

54

2

2

 

 

DCD

Data Carrier Detect

21

2

6

 

 

CTS

Clear to Send

55

2

4

 

6

RTS

Request to Send

22

2

28

 

 

DTR

Data Terminal Ready

56

2

30

 

 

TXD

Transmit Data

23

2

26

 

 

SGND

Signal Ground

57

6

32

 

 

DSR

Data Set Ready

24

2

36

 

 

RXD

Receive Data

58

2

27

 

 

DCD

Data Carrier Detect

25

2

21

 

 

CTS

Clear to Send

59

2

29

 

7

RTS

Request to Send

26

2

40

 

 

DTR

Data Terminal Ready

60

2

42

 

 

TXD

Transmit Data

27

2

38

 

 

SGND

Signal Ground

61

2

44

 

 

DSR

Data Set Ready

28

2

48

 

 

RXD

Receive Data

62

2

39

 

 

DCD

Data Carrier Detect

29

2

43

 

 

CTS

Clear to Send

63

2

41

 

8

RTS

Request to Send

30

2

15

 

 

DTR

Data Terminal Ready

64

2

17

 

 

TXD

Transmit Data

31

2

13

 

 

SGND

Signal Ground

65

2

19

 

 

DSR

Data Set Ready

32

2

23

 

 

RXD

Receive Data

66

2

14

 

 

DCD

Data Carrier Detect

33

2

18

 

 

CTS

Clear to Send

67

2

16

RS-232 Cable

 Table B-5 gives pinout information for a 25-pin RS-232 cable with two DB-25 connectors. Pins not listed have no connection.

Note ¯ RS-232 only supports signaling at speeds up to 56Kbps. If the connected device supports RS-423 signaling, use an RS-423 cable to obtain speeds up to 128Kbps.

This cable is not supplied, but can be ordered from Lucent. Specify product code MC-6.

 

 
Table B-5 RS-232 Cable with DB-25 Connectors

Pin

Name

Definition

Direction

2

TXD

Transmit Data

Output

3

RXD

Receive Data

Input

4

RTS

Request to Send

Output

5

CTS

Clear to Send

Input

6

DSR

Data Set Ready

Input

7

SGND

Signal Ground

 

8

DCD

Data Carrier Detect

Input

15

ST

Send Timing

Input

17

RT

Receive Timing

Input

20

DTR

Data Terminal Ready

Output

V.35 Cable

 Table B-6 gives pinout information for a V.35 cable with DB-25 and V.35 connectors. Pins not listed have no connection.

This cable is not supplied, but can be ordered from Lucent. Specify product code CBL-V.35-6.

 

 
Table B-6 Synchronous V.35 Cable

DB-25 Pin

Name

V.35 Pin

Definition

Direction

2

TXD

P

Transmit Data

Output

14

TXD-

S

 

 

3

RXD

R

Receive Data

Input

16

RXD-

T

 

 

4

RTS

C

Request to Send

Output

5

CTS

D

Clear to Send

Input

6

DSR

E

Data Set Ready

Input

7

SGND

B

Signal Ground

 

8

DCD

F

Data Carrier Detect

Input

15

ST

Y

Send Timing

Input

13

ST-

AA

 

 

17

RT

V

Receive Timing

Input

19

RT-

X

 

 

20

DTR

H

Data Terminal Ready

Output

X.21 Cable

 Table B-7 gives pinout information for an X.21 cable with DB-25 and DB-15 connectors. Pins not listed have no connection.

This cable is not supplied, but can be ordered from Lucent. Specify product code CBL-X21-6.

 
Table B-7 Synchronous X.21 Cable

PortMaster
Port W1

V.35
DB-25 Pin

Name

Definition

X.21

DB-15

Pin

Name

7

B

SGND

Signal Ground

8

SGND

 

 

 

 

10

Control B

4

C

RTS

Request to Send

3

Control A

5

D

CTS

Clear to Send

 

 

8

F

CD

Carrier Detect

5

Indicate A

3

R

RXA

Receive Data

4

RXA

16

T

RXB

Receive Data

11

RXB

17

V

RX CLKA

Receive Timing

6

CLKA

15

Y

TX CLKA

Send Timing

 

 

19

X

RX CLKB

Receive Timing

13

CLKB

13

AA

TX CLKB

Send Timing

 

 

2

P

TXD A

Transmit Data

2

TXA

14

S

TXD B

Transmit Data

9

TXA

RS-530 Cable

 Table B-8 gives pinout information for a synchronous RS-530 cable with DB-25 connectors. Pins not listed have no connection.

This cable is not supplied, but can be ordered from Lucent. Specify product code CBL-530-6.

 
Table B-8 Synchronous RS-530 Cable

PortMaster
Port W1

RS-530

CSU/DSU Pin

Name

Definition

Direction

2

2

TXD

Transmit Data

Output

14

14

TXD-

 

 

3

3

RXD

Receive Data

Input

16

16

RXD-

 

 

4

4

RTS

Request to Send

Output

5

5

CTS

Clear to Send

Input

6

6

DSR

Data Set Ready

Input

7

7

SGND

Signal Ground

 

8

8

DCD

Data Carrier Detect

Input

15

15

ST

Send Timing

Input

13

12

ST-

 

 

17

17

RT

Receive Timing

Input

19

9

RT-

 

 

20

20

DTR

Data Terminal Ready

Output

Category 5 Twisted Pair Cable for the S/T Interface

 Table B-9 gives pinout information for an 8-pin, category 5 twisted pair cable with
RJ-45 connectors for the S/T interface. Pins not listed have no connection.

Five of these cables are included.

 
Table B-9 Category 5 Cable for the S/T Interface

RJ-45 Pin

Name

Definition

Direction

3

TXD

Transmit Data

Output

6

TXD-

 

 

4

RXD

Receive Data

Input

5

RXD-

 

 

Category 5 Twisted Pair Cable for the U Interface

 Table B-10 gives pinout information for an 8-pin, category 5 twisted pair cable with
RJ-45 connectors for the U interface. Pins not listed have no connection.

Additional cables are available from most computer equipment suppliers.

 
Table B-10 Category 5 Cable for the U Interface

ISDN/U Port

Direction

4

Input/Output

5

Input/Output

High-Density 10-Pin Cable for the U Interface

 Table B-11 gives pinout information for a 20-foot (6m), high-density 10-pin, unshielded, 24-gauge solid level 1 wiring cable with an RJ-45 connector and 10 loose wires.

Caution ¯ Do not use the 10-pin RJ-45 cable in an 8-pin RJ-45 port. Incorrect cable insertion can damage the PortMaster.

This cable is supplied with the MOD-10I-U expansion board and with models PM-2i-U and PM-Ei-U. Additional cables can be ordered from Lucent. Specify product code
CBL-HD45. Punchdown blocks are available from electronic supply stores that carry telephone equipment.

 
Table B-11 High-Density 10-Pin Cable

Pin

Color

Ports

S0-9

Ports

S10-19

Ports

S20-29

1

White-gray

5

S18-19

S28-29

2

White-brown

4

S16-17

S26-27

3

White-green

3

S14-15

S24-25

4

White-orange

2

S12-13

S22-23

5

White-blue

1

S10-11

S20-21

6

Blue-white

1

S10-11

S20-21

7

Orange-white

2

S12-13

S22-23

8

Green-white

3

S14-15

S24-25

9

Brown-white

4

S16-17

S26-27

10

Gray-white

5

S18-19

S28-29

Disregard any solid red or solid blue lines because they are not used.

Ethernet Interface Specifications

 Table B-12 gives specifications for the 10Mbps baseband IEEE 802.3-compatible Ethernet interface.

 
Table B-12 Ethernet Interface Specifications

Ethernet

Type

Connector

Type

Cable Type

Transmission

Distance

10Base5(AUI)

15-pin
DEC-Intel-Xerox (DIX) for connection to external transceiver

RG-11 50 ohm coaxial

Trunk segment-1,640ft (500m) maximum Transceiver cable-164ft (50m) maximum
Network trunk-8,200ft (2,500m) maximum

10Base2(BNC)

BNC

T-connector

RG-58 A/U 50 ohm coaxial

Trunk segment-984ft (300m) maximum
Station distance-1.5ft (0.5m) maximum
Network trunk-3,035ft (925m) maximum

10BaseT(RJ-45)

RJ-45 for 10BaseT

Unshielded twisted pair

Hub distance-328ft (100m) maximum
Repeaters-four maximum

To obtain a product list and prices for optional Ethernet accessories available from Lucent, contact the dealer from which you purchased your PortMaster.



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