42 Router Card (WS-X3011) Configuration Note
Cable, Pinout, and Port Specifications
Table 18
X.21 Cable Pinouts (DCE)
ISDN BRI Port and Cable Pinouts
Table 19 lists the ISDN BRI port pinouts. The straight-through RJ-45-to-RJ-45 cable, used to
connect to the ISDN BRI port, is not included.
Table 19
ISDN BRI Port Pinouts
J1-9
J1-10
RTS/CTS+
RTS/CTS–
Twisted pair no. 2
—>
—>
J2-3
J2-10
Control–
J1-28
J1-27
RxD/TxD+
RxD/TxD–
Twisted pair no. 6
<—
<—
J2-4
J2-11
Receive–
J1-1
J1-2
CTS/RTS+
CTS/RTS–
Twisted pair no. 1
<—
<—
J2-5
J2-12
Ind
Indication–
J1-26
J1-25
RxC/TxCE+
RxC/TxCE–
Twisted pair no. 5
<—
<—
J2-6
J2-13
Timing–
J1-15
Shield
Control_GND
–
Twisted pair no. 4
–
–
J2-8
Shield
Control GND
–
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
T
Transmit–
J1-1
J1-2
CTS/RTS+
CTS/RTS–
Twisted pair no. 1
<—
<—
J2-3
J2-10
Control–
J1-11
J1-12
TxD/RxD+
TxD/RxD–
Twisted pair no. 3
—>
—>
J2-4
J2-11
Receive–
J1-9
J1-10
RTS/CTS+
RTS/CTS–
Twisted pair no. 2
—>
—>
J2-5
J2-12
Ind
Indication–
J1-24
J1-23
TxC/RxC+
TxC/RxC–
Twisted pair no. 4
—>
—>
J2-6
J2-13
Timing–
J1-15
Shield
Control_GND
–
Twisted pair no. 5
–
–
J2-8
Shield
Control GND
–
RJ-45
8 Pin
1
TE
2
NT
3
Polarity
3
Transmit
Receive
+
4
Receive
Transmit
+
5
Receive
Transmit
–
6
Transmit
Receive
–
60 Pin
Signal
Description
Direction
15 Pin
Signal