
B-32
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+
O_DTR/DSR–
Twisted pair no. 3
—>
—>
J2-20
J2-23
CD(A); DTR+
CD(B); DTR–
Not used
Twisted pair no. 2
Not used
Table B-26 RS-530A DCE Smart Serial Cable Pinout
26-Pin
Signal Name
Note
Direction
DB-25
Pin
Signal Name
J1-21
J1-22
J1-24
MODE_2
MODE_1
MODE_DCE
Local connections
Drain
wire
Shield
—
J2-01
Shield_GND
J1-06
J1-19
B_DCD/DCD+
B_DCD/DCD–
Twisted pair no. 11
<—
<—
J2-08
j2-10
CF(A); DCD+
CF(B); DCD–
J1-13
J1-26
B_LL/LL+
GND
Twisted pair no. 12
—>
—
J2-18
J2-07
LL
AB; GND
J1-05
J1-18
I_RXD/TXD+
I_RXD/TXD–
Twisted pair no. 9
<—
<—
J2-03
J2-16
BB(A); RXD+
BB(B); RXD–
J1-01
J1-14
O_TXD/RXD+
O_TXD/RXD–
Twisted pair no. 5
—>
—>
J2-02
J2-14
BA(A); TXD+
BA(B); TXD–
J1-11
J1-10
I_CTS/RTS+
I_DSR/RTS–
Twisted pair no. 4
<—
<—
J2-05
J2-13
CB(A); CTS+
CB(B); CTS–
J1-12
J1-25
I_DSR/DTR+
GND
Twisted pair no. 10
<—
—
J2-06
CC(A); DSR+
AC; GND
J1-03
J1-16
B_TXC/TXC+
B_TXC/TXC–
Twisted pair no. 7
<—
<—
J2-15
J2-12
DB(A); TXC+
DB(B);
TXCS–
J1-08
J1-09
O_RTS/CTS
O_RTS/CTS–
Twisted pair no. 1
—>
—>
J2-04
J2-19
CA(A); RTS+
CA(B); RTS–
J1-04
J1-17
I_RXC/TXCE
+
I_RXC/TXCE–
Twisted pair no. 8
<—
<—
J2-17
J2-09
DD(A); RXC+
DD(B); RXC–
Table B-25 EIA-530 DTE Smart Serial Cable Pinout (continued)
26-Pin
Signal Name
Note
Direction
DB-25
Pin
Signal Name