Specifications

C-22 Cisco Multiport Router Installation and Configuration Guide
Synchronous Serial Cable Assemblies and Pinouts
Table C-14 X.21 DCE Cable Pinouts (DB-60 to DB-15)
60 Pin 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
–