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60 pin Cisco DB connector layout
60 pin Cisco DB connector
This document describes the X.21 cable assembly and pinouts (Data Communications - DCE). Cisco Part#: CAB-X21FC=
60 Pin1 Signal Description Direction 15 Pin Signal
J1-48
J1-47		 GND
MODE_2		 Shorting group - - -
J1-46 Shield_GND Single - J2-1 Shield GND
J1-28
J1-27		 RxD/TxD+
RxD/TxD-		 Twisted pair no. 6 -
-		 J2-2
J2-9		 Transmit+
Transmit-
J1-1
J1-2		 CTS/RTS+
CTS/RTS-		 Twisted pair no. 1 -
-		 J2-3
J2-10		 Control+
Control-
J1-11
J1-12		 TxD/RxD+
TxD/RxD-		 Twisted pair no. 3 -
-		 J2-4
J2-11		 Receive+
Receive-
J1-9
J1-10		 RTS/CTS+
RTS/CTS-		 Twisted pair no. 2 -
-		 J2-5
J2-12		 Indication+
Indication-
J1-24
J1-23		 TxC/RxC+
TxC/RxC-		 Twisted pair no. 4 -
-		 J2-6
J2-13		 Timing+
Timing-
J1-15
Shield		 Control_GND
-		 Twisted pair no. 5 -
-		 J2-8
Shield		 Control GND
-

Arrows indicate signal direction: - indicates DTE to DCE, and - indicates DCE to DTE.

Any pin not referenced is not connected.

 
15 pin Cisco DB connector layout
15 pin Cisco DB connector
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