
B-33
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
78-15827-06B0
Appendix B Cable Specifications
Smart Serial Connection Signals and Pinouts
J1-02
J1-15
O_TCXE/RXC
+
0_TXCE/RXC
–
Twisted pair no. 6
—>
—>
J2-24
J2-11
DB(A);
TXCE+
DB(B);
TXCE–
J1-03
J1-16
B_TXC/TXC+
B_TXC/TXC–
Twisted pair no. 7
<—
<—
J2-15
J2-12
DB(A); TXC+
DB(B); TXC––
J1-07
J1-20
O_DTR/DSR+
GND+
Twisted pair no. 3
—>
—
J2-20
J2-23
CD(A); DTR+
AC; GND
Not used
Twisted pair no. 2
Not used
Table B-26 RS-530A DCE Smart Serial Cable Pinout (continued)
26-Pin
Signal Name
Note
Direction
DB-25
Pin
Signal Name