Cisco X.21 DTE

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DB60 to DB15 X.21 DTE Cable Pinout (DB-60 to DB-15)

60 Pin1 Signal Description Direction 15 Pin Signal
J1-48
J1-47 GND
MODE_2 Shorting group - - -
J1-51
J1-52 GND
MODE_DCE Shorting group - - -
J1-46 Shield_GND Single - J2-1 Shield GND
J1-11
J1-12 TxD/RxD+
TxD/RxD- Twisted pair no. 3 –>
–> J2-2
J2-9 Transmit+
Transmit-
J1-9
J1-10 RTS/CTS+
RTS/CTS- Twisted pair no. 2 –>
–> J2-3
J2-10 Control+
Control-
J1-28
J1-27 RxD/TxD+
RxD/TxD- Twisted pair no. 6 <–
<– J2-4
J2-11 Receive+
Receive-
J1-1
J1-2 CTS/RTS+
CTS/RTS- Twisted pair no. 1 <–
<– J2-5
J2-12 Indication+
Indication-
J1-26
J1-25 RxC/TxCE+
RxC/TxCE- Twisted pair no. 5 <–
<– J2-6
J2-13 Timing+
Timing-
J1-15
Shield Control_GND
- Twisted pair no. 4 -
- J2-8
Shield Control GND
-

Notes

  • Arrows indicate signal direction: –> indicates DTE to DCE, and <– indicates DCE to DTE.
  • (1) Any pin not referenced is not connected.

References

Category:Serial Cables

 

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