HDB-26 male

M-34 male

TXD-a

1

P

RXD-a

3

R

RTS

10

C

CTS

21

D

DSR

25

E

CD

16

F

RXCIN-b

15

X

TXCOUT-b

9

W

TXCIN-b

23

AA

TXD-b

2

S

TXCIN-a

22

Y

RXD-b

24

T

RXCIN-a

5

V

DTR

19

H

TXCOUT-a

7

U

GND

11

A

GND

4,6,18

B