Cable Specifications

Synchronous Serial Cable Assemblies and Pinouts

Table A-11. X-21 DTE Cable Pinouts (DB-60 to DB-15)

Specifications

60 Pin

Signal

Description

Direction

15 Pin

Signal

 

 

 

 

 

 

 

 

 

J1-48

GND

Shorting group

 

J1-47

MODE_2

 

 

 

 

 

 

 

 

 

 

 

Cable

J1-51

GND

Shorting group

J1-52

MODE_DCE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J1-46

Shield_GND

Single

J2-1

Shield GND

 

 

 

 

 

 

 

 

J1-11

TxD/RxD+

Twisted pair no. 3

—>

J2-2

Transmit+

 

J1-12

TxD/RxD–

 

—>

J2-9

Transmit–

 

 

 

 

 

 

 

 

J1-9

RTS/CTS+

Twisted pair no. 2

—>

J2-3

Control+

 

J1-10

RTS/CTS–

 

—>

J2-10

Control–

 

 

 

 

 

 

 

 

J1-28

RxD/TxD+

Twisted pair no. 6

<—

J2-4

Receive+

 

J1-27

RxD/TxD–

 

<—

J2-11

Receive–

 

 

 

 

 

 

 

 

J1-1

CTS/RTS+

Twisted pair no. 1

<—

J2-5

Indication+

 

J1-2

CTS/RTS–

 

<—

J2-12

Indication–

 

 

 

 

 

 

 

 

J1-26

RxC/TxCE+

Twisted pair no. 5

<—

J2-6

Timing+

 

J1-25

RxC/TxCE–

 

<—

J2-13

Timing–

 

 

 

 

 

 

 

 

J1-15

Control_GND

Twisted pair no. 4

J2-8

Control GND

 

Shield

 

Shield

 

 

 

 

 

 

 

A-18

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HP AdvanceStack Internet Router Table A-11. X-21 DTE Cable Pinouts DB-60 to DB-15, Pin Signal Description Direction 15 Pin