A-14 APPENDIX A: SPECIFICATIONS

X.21 DTE and DCE Serial Cable Pinouts

Table A-17lists pinouts for:X.21 DTE synchronous serial cable (Part Number ERMX21-CAB)X-21 DCE synchronous serial cable (Part Number ERFX21-CAB)

Table A-17 X.21 DTE and DCE Cable Pinouts (DB-15)

15 Pin1

 

DTE DCE

Signal

Direction

J2-1

Shield GND

 

 

 

J2-2

Transmit+

J2-9

Transmit-

 

 

 

J2-3

Control+

J2-10

Control-

 

 

 

J2-4

Receive+

J2-11

Receive-

 

 

 

J2-5

Indication+

J2-12

Indication-

 

 

 

J2-6

Timing+

J2-13

Timing-

 

 

 

J2-8

Circuit GND

Shield

1

Any pin not referenced is not connected.