APPENDIX B - Continued

V.35 TO V.35 (STRAIGHT-

THROUGH CABLE) PIN

OUT

PIN

Function

AFrame Ground

BSignal Ground

CRTS

DNC

EDSR

FDCD

H

DTR

KNC

LNC

P

TD (A)

RRD (A)

STD (B)

TRD (B)

USCTE (A)

VRT (A)

W SCTE (B)

XRT (B)

YNC

AA NC

V.35 TO V.35 (CROSS OVER

CABLE) PIN OUT

PIN

Function

PIN

 

 

 

A

Frame Ground

A

 

 

 

B

Signal Ground

B

 

 

 

C

DCD

F

 

 

 

D

NC

D

 

 

 

E

DTR

H

 

 

 

F

RTS

C

 

 

 

H

DSR

E

 

 

 

K

NC

K

 

 

 

L

NC

L

 

 

 

P

RD (A)

R

 

 

 

R

TD (A)

P

 

 

 

S

RD (B)

T

 

 

 

T

TD (B)

S

 

 

 

U

RT (A)

V

 

 

 

V

SCTE (A)

U

 

 

 

W

RT (B)

X

 

 

 

X

SCTE (B)

W

 

 

 

Y

NC

Y

 

 

 

AA

NC

AA

 

 

 

17

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Image 18
Patton electronic X.21 Interfaces, 2707C, 2707D user manual Appendix B