Cable Pinouts

DB-25M Pin

RS-232 Signal

DB-9F Pin

RS-485 Signal

2

TXD

1

SR

3

RXD

2

TXD+

4

RTS

3

RXD+

5

CTS

4

RTS+

6

DSR *

5

CTS+

7

GND

6

TXD-

8

DCD

7

RXD-

20

DTR

8

RTS

22

RI *

9

CTS-

DB9F

1 - SR

2 - TxD+

3 - RxD+

4 - RTS +

5 - CTS +

6 - TxD -

7 - RxD -

8 - RTS -

9 - CTS -

 

Standard DTE RS-232 DB9M

Standard DCE RS-232 DB25F

DB-25 F Pin

RS-232

RS-485

Dflex

RS-485

Intellicon

RS-423

C-loop

2

TxD

TxD-

RxD+

TxD-

TxD Src

3

RxD

TxD+

RTS+

TxD Ref

TxD+

4

RTS

RTS-

RTS-

RTS-

TxD-

5

CTS

RTS+

RxD-

RTS Ref

RxD+

6

DSR *

CTS-

CTS-

CTS-

Rxd Ret

7

GND

SR

SR

SR

GND

8

DCD

RxD+

CTS+

RxD+

RxD-

20

DTR

RxD-

TxD+

RxD-

TxD Ret

22

RI *

CTS+

TxD-

CTS+

RxD Src

DB-25 Pin

RS-232

RS-485

Dflex

RS-485

Intellicon

RS-423

C-loop

2

TxD

TxD-

RxD+

TxD-

TxD Src

3

RxD

TxD+

RTS+

TxD Ref

TxD+

4

RTS

RTS-

RTS-

RTS-

TxD-

5

CTS

RTS+

RxD-

RTS Ref

RxD+

6

DSR *

CTS-

CTS-

CTS-

Rxd Ret

7

GND

SR

SR

SR

GND

8

DCD

RxD+

CTS+

RxD+

RxD-

20

DTR

RxD-

TxD+

RxD-

TxD Ret

22

RI *

CTS+

TxD-

CTS+

RxD Src

Standard DB25M RS-232 DCE

DB-25 Pin

RS-232

2

TxD

3

RxD

4

RTS

5

CTS

7

GND

8

DCD

20

DTR

Standard RS-232 DTE

DB9M - Color

1 - Orange

2 - White

3 - Black

4 - Blue

5 - Brown

7 - Red

8 - Green

DB-25 Female pin

RS-232 signal

2

RxD - output

3

TxD - input

4

DCD - output

5

RTS - input

7

GND

8

DTR - input

20

CTS - output

DB-25 Female pin

RS-232 signal

2

TxD - output

3

RxD - input

4

RTS - output

5

CTS - input

7

GND

8

DCD - input

20

DTR - output

Standard RS232 DB9M cable

DB-25 Pin

RS-232

DB-9

RS-485

2

TxD

1

RxD +

3

RxD

2

TxD +

4

RTS

3

TxD -

5

CTS

4

RxD -

6

N/C

5

SG

7

GND

6

CTS-

8

DCD

7

RTS-

20

DTR

8

RTS+

22

N/C

9

CTS+

DB-25 Pin

RS-232

2

TxD

3

RxD

4

RTS

5

CTS

7

GND

8

DCD

20

DTR

DB-25M Pin

RS-232

RS-485

RS-423

C-loop

2

TxD

TxD-

TxD-

TxD Src

3

RxD

TxD+

TxD Ref

TxD+

4

RTS

RTS-

RTS-

TxD-

5

CTS

RTS+

RTS Ref

RxD+

6

DSR *

CTS-

CTS-

Rxd Ret

7

GND

SR

SR

GND

8

DCD

RxD+

RxD+

RxD-

20

DTR

RxD-

RxD-

TxD Ret

22

RI *

CTS+

CTS+

RxD Src

DB9M - IDC10

1 - 1(red)

6 - 2

2 -3

7 -4

3 - 5

8 - 6

4 - 7

9 - 8

5 - 9

NC - 10

DB-37 male to DB-37 female through cable - NT960/ISA - Only

DB-37 male to DB-37 female through cable - NT960/PCI/ISA

IDC HDR PIN #

Port #

9D Pin #

IDC HDR PIN #

Port #

9D Pin #

1

A

1

21

C

1

2

6

22

6

3

2

23

2

4

7

24

7

5

3

25

3

6

8

26

8

7

4

27

4

8

9

28

9

9

5

29

5

10

--

30

--

11

B

1

31

D

1

12

6

32

6

13

2

33

2

14

7

34

7

15

3

35

3

16

8

36

8

17

4

37

4

18

9

38

9

19

5

39

5

20

--

40

--

10 Contact RJ45

DB-9 Male

1

9

2

1

3

7

4

5* two connections

5

3

6

2

7

5* two connections

8

8

9

4

10

6

Shield ( drain wire )

Shield ( drain wire )

Standard USB-A to USB-B Cable

  • CB001 Pinout

    26H

    Pin#

    25D

    Pin#

    26H

    Pin#

    25D

    Pin#

    1

    1

    14

    20

    2

    14

    15

    8

    3

    2

    16

    21

    4

    15

    17

    9

    5

    3

    18

    22

    6

    16

    19

    10

    7

    4

    20

    23

    8

    17

    21

    11

    9

    5

    22

    24

    10

    18

    23

    12

    11

    6

    24

    25

    12

    19

    25

    13

    13

    7

    26

    ---

Standard RS232 DB9

Standard RS232 DB9

RJ 45 Jack <-> DB25F

CTS 9  <-> 4 RTS

DTR 7 <-> 8 DCD

GND 6 <-> 7 GND

TX  5 <-> 3 RX

RX 4 <-> 2 TX

DCD 3 <-> 20 DTR

RTS 1 <-> 5 CTS

RJ 45 Jack <-> DB9F

CTS 9  <-> 7 RTS

DTR 7 <-> 1 DCD

GND 6 <-> 5 GND

TX  5 <-> 2 RX

RX 4 <-> 3 TX

DCD 3 <-> 4 DTR

RTS 1 <-> 8 CTS

Standard Ethernet Cable

DB25M

8 DCD

3 RXD

2 TXD

20 DTR

7 GND

6 DSR

4 RTS

5 CTS

22 RI

  • CB008 Pinout

    IDC HDR PIN #

    Signal Name

    DB25 Male Pin #

    Label

    IDC HDR PIN #

    Signal Name

    DB25 Male Pin #

    Label

    1

    DCD

    8

    A

    21

    DCD

    8

    B

    2

    DSR

    6

    22

    DSR

    6

    3

    RXD

    3

    23

    RXD

    3

    4

    RTS

    4

    24

    RTS

    4

    5

    TXD

    2

    25

    TXD

    2

    6

    CTS

    5

    26

    CTS

    5

    7

    DTR

    20

    27

    DTR

    20

    8

    RI

    22

    28

    RI

    22

    9

    SG

    7

    29

    SG

    7

    10

    N/C

    -

    30

    N/C

    -

    11

    DCD

    25

    A

    31

    DCD

    25

    B

    12

    DSR

    13

    32

    DSR

    13

    13

    RXD

    10

    33

    RXD

    10

    14

    RTS

    11

    34

    RTS

    11

    15

    TXD

    9

    35

    TXD

    9

    16

    CTS

    12

    36

    CTS

    12

    17

    DTR

    19

    37

    DTR

    19

    18

    RI

    23

    38

    RI

    23

    19

    SG

    1

    39

    SG

    1

    20

    N/C

    -

    40

    N/C

    -

  • CB009 Pinout

    Side A

    Signal

    Side B

    Side A

    Signal

    Side C

    1

    TD

    3

    9

    TD

    3

    2

    RI

    9

    10

    RI

    9

    3

    DCD

    1

    11

    DCD

    1

    4

    DTR

    4

    12

    DTR

    4

    5

    RTS

    7

    13

    RTS

    7

    6

    DSR

    6

    14

    DSR

    6

    7

    RD

    2

    15

    RD

    2

    8

    CTS

    8

    16

    CTS

    8

    17

    GND

    5

    17

    GND

    5

    Side A

     

    Side D

    Side A

     

    Side E

    19

    TD

    3

    27

    TD

    3

    20

    RI

    9

    28

    RI

    9

    21

    DCD

    1

    29

    DCD

    1

    22

    DTR

    4

    30

    DTR

    4

    23

    RTS

    7

    31

    RTS

    7

    24

    DSR

    6

    32

    DSR

    6

    25

    RD

    2

    33

    RD

    2

    26

    CTS

    8

    34

    CTS

    8

    18

    GND

    5

    18

    GND

    5

    Side A

     

    Side F

    Side A

     

    Side G

    35

    TD

    3

    43

    TD

    3

    36

    RI

    9

    44

    RI

    9

    37

    DCD

    1

    45

    DCD

    1

    38

    DTR

    4

    46

    DTR

    4

    39

    RTS

    7

    47

    RTS

    7

    40

    DSR

    6

    48

    DSR

    6

    41

    RD

    2

    49

    RD

    2

    42

    CTS

    8

    50

    CTS

    8

    51

    GND

    5

    51

    GND

    5

    Side A

     

    Side H

    Side A

     

    Side I

    53

    TD

    3

    61

    TD

    3

    54

    RI

    9

    62

    RI

    9

    55

    DCD

    1

    63

    DCD

    1

    56

    DTR

    4

    64

    DTR

    4

    57

    RTS

    7

    65

    RTS

    7

    58

    DSR

    6

    66

    DSR

    6

    59

    RD

    2

    67

    RD

    2

    60

    CTS

    8

    68

    CTS

    8

    52

    GND

    5

    52

    GND

    5

  • CB010 Pinout

    DB37 Pin

    IDC 10 Port 1

    Signal

    DB37 Pin

    IDC 10 Port 3

    5

    1

    DCD/RXD+

    28

    1

    23

    2

    CTS-

    10

    2

    4

    3

    RXD/TXD+

    27

    3

    22

    4

    RTS/RTS-

    9

    4

    3

    5

    TXD/TXD-

    26

    5

    21

    6

    CTS/RTS+

    8

    6

    2

    7

    DTR/RXD-

    25

    7

    20

    8

    CTS+

    7

    8

    1

    9

    SR/SG

    24

    9

    DB37 Pin

    IDC 10 Port 2

    Signal

    DB37 Pin

    IDC 10 Port 4

    19

    1

    DCD/RXD+

    33

    1

    37

    2

    CTS-

    14

    2

    18

    3

    RXD/TXD+

    32

    3

    36

    4

    RTS/RTS-

    13

    4

    17

    5

    TXD/TXD-

    31

    5

    35

    6

    CTS/RTS+

    12

    6

    16

    7

    DTR/RXD-

    30

    7

    34

    8

    CTS+

    11

    8

    15

    9

    SR/SG

    29

    9

  • CB013 Pinout

    6 Contact Socket -> DB-9 Male  

    1 - TX -> 3 - TX

    2 - RX -> 2 - RXD

    3 - RTS-> 7 - RTS

    4 - CTS-> 8 - CTS

    5 - GND-> 5 GND

    6 - NC

  • CB014 Pinout

    10 Contact Socket -> DB-9 Male

    1 - TX/TXD+ -> 3 - TX/TXD+

    2 - NC/TXD- -> 4 - NC/TXD-

    3 - NC/RXD+ -> 1 - NC/RXD+

    4 - RXD/RXD- -> 2 - RXD/RXD-

    5 - CTS/CTS+ -> 8 - CTS/CTS+

    6 - NC/CTS- -> 6 - NC/CTS-

    7 - RTS/RTS+ -> 7 - RTS/RTS+

    8 - NC/RTS- -> 9 - NC/RTS-

    9 - GND -> 5 GND

    10 - NC

  • CB015 Pinout

    DB9 Female Pin

    RS-485 Signal

    1

    TxD +

    4

    TxD -

    2

    RxD +

    3

    RxD -

    5

    SR ( Ground )

  • CB016 Pinout

    DB-9 Female  -> DB-9 Female

    2 - RX -> 3 - TX

    3 - TX -> 2 - RX

    4 - DTR -> 6+1 - DSR+CD

    5 - GND -> 5 - GND

    6+1 - DSR+CD -> 4 - DTR

    7 - RTS -> 8 - CTS

    8 - CTS -> 7 - RTS

DB-9 Female -> 8 contact RJ45

1 - DCD -> 3 - DCD

2 - RX -> 4 - RX

3 - TX -> 5 - TX

4 - DTR -> 7 - DTR

5 - GND -> 6 - SG

6 - DSR -> 2 - DSR

7 - RTS -> 1 - RTS

8 - CTS -> 8 - CTS

  • CB018 Pinout
  • Side A DB25 F -> Side B DB9 M

    8  -> 4

    20  -> 3

    3  -> 2

    2  -> 1

    7  -> 6 & 8

    Shell  -> Shell