504/505 AppNote/03

New SP504/505 Evaluation Board

© Copyright 2000 Sipex Corporation

14

RS-232 & EIA-530 Connector (ISO 2110)

DTE Connector ó DB-25 Pin Male

DCE Connector ó DB-25 Pin Female

1

13

14

25

7

20

EIA-232

EIA-530

EIA-449

Signal Name

Source Mnemonic Pin Mnemonic Pin Mnemonic Pin

Shield

—

—

1

—

1

—

1

Transmitted

Data

DTE

BA

2

BA (A)

2

SD (A)

4

BA (B)

14

SD (B)

22

Received

Data

DCE

BB

3

BB (A)

3

RD (A)

6

BB (B)

16

RD (B)

24

Request To Send

DTE

CA

4

CA (A)

4

RS (A)

7

CA (B)

19

RS (B)

25

Clear To Send

DCE

CB

5

CB (A)

5

CS (A)

9

CB (B)

13

CS (B)

27

DCE Ready (DSR)

DCE

CC

6

CC (A)

6

DM (A)

11

CC (B)

22

DM (B)

29

DTE Ready (DTR)

DTE

CD

20

CD (A)

20

TR (A)

12

CD (B)

23

TR (B)

30

Signal Ground

—

AB

7

AB

7

SG

19

Recv. Line

Sig. Det. (DCD)

DCE

CF

8

CF (A)

8

RR (A)

13

CF (B)

10

RR (B)

31

Trans. Sig. Elemt.

Timing

DCE

DB

15

DB (A)

15

ST (A)

5

DB (B)

12

ST (B)

23

Recv. Sig. Elemt.

Timing

DCE

DD

17

DD (A)

17

RT (A)

8

DD (B)

9

RT (B)

26

Local Loopback

DTE

LL

18

LL

18

LL

10

Remote Loopback

DTE

RL

21

RL

21

RL

14

Ring Indicator

DCE

CE

22

—

—

—

—

Trans. Sig. Elemt.

Timing

DTE

DA

24

DA (A)

24

TT (A)

17

DA (B)

11

TT (B)

35

Test Mode

DCE

TM

25

TM

25

TM

18

V.35

Mnemonic

Pin

—A

103

P

103

S

104

R

104

T

105

C

106

D

107

E

108

H *

102

B

109

F

114

Y

114

AA

115

V

115

X

141

L *

140

N *

125

J *

113

U *

113

W *

142

NN *

X.21

Mnemonic

Pin

—1

Circuit T(A)

2

Circuit T(B)

9

Circuit R(A)

4

Circuit R(B)

11

Circuit C(A)

3

Circuit G

8

7

14

Circuit C(B)

10

Circuit I(A)

5

Circuit I(B)

12

Circuit B(A)**

Circuit B(B)**

* - Optional signals

** - Only one of the two X.21 signals, Circuit B or X, can

be implemented and active at one time.

6

13

Circuit S(A)

Circuit S(B)

7

14

Circuit X(A)**

Circuit X(B)**