Macho

Hembra

RS232-C

Description

Circuit
EIA

Circuit
CCITT

RJ45

TIA 457

1

Shield Ground

AA

7

Signal Ground

AB

102

4

5

2

Transmitted Data

BA

103

6

3

3

Received Data

BB

104

5

2

4

Request To Send

CA

105

8

7

5

Clear To Send

CB

106

7

8

6

DCE Ready

CC

107

1

6

20

DTE Ready

CD

108.2

3

4

22

Ring Indicator

CE

125

1

9

8

Received Line Signal Detector

CF

109

2

1

23

Data Signal Rate Select
(DTE/DCE Source>

CH/CI

111/112

24

Transmit Signal Element Timing
(DTE Source)

DA

113

15

Transmitter Signal Element Timing
(DCE Source)

DB

114

17

Receiver Signal Element Timing
(DCE Source)

DD

115

18

Local Loopback / Quality Detector

LL

141

21

Remote Loopback

RL/CG

140/110

14

Secondary Transmitted Data

SBA

118

16

Secondary Received Data

SBB

119

19

Secondary Request To Send

SCA

120

13

Secondary Clear To Send

SCB

121

12

Secondary Received Line Signal Detector/
Data signal Rate Select (DCE Source)

SCF/CI

122/112

25

Test Mode

TM

142

9

Reserved for Testing

10

Reserved for Testing

11

Unassigned