Installation guide

A-58 Cisco 4000 Series Installation Guide
Serial Cables
– Not used
Not used
Twisted pair #7 – Not used
Not used
–
– Not used
Not used
Twisted pair #8 – Not used
Not used
–
– Not used
Not used
Twisted pair #9 – Not used
Not used
–
SHIELD_GROUND Braid SHIELD GND J2-1
J8-51
J8-52
O_TXD/RXD+
O_TXD/RXD-
Twisted pair #1 —>
—>
TRANSMIT+
TRANSMIT-
J2-2
J2-9
J8-66
J8-67
O_RTS/CTS+
O_RTS/CTS-
Twisted pair #4 —>
—>
CONTROL+
CONTROL-
J2-3
J2-10
J8-55
J8-56
I_RXD/TXD+
I_RXD/TXD-
Twisted pair #2 <—
<—
RECEIVE+
RECEIVE-
J2-4
J2-11
J8-73
J8-74
I_CTS/RTS+
I_CTS/RTS-
Twisted pair #5 <—
<—
INDICATION+
INDICATION-
J2-5
J2-12
J8-57
J8-58
I_RXC/TXCE+
I_RXC/TXCE-
Twisted pair #3 <—
<—
TIMING+
TIMING-
J2-6
J2-13
J8-61
J8-68
SIG_GROUND
SIG_GROUND
Twisted pair #6 – SIG GND
SIG GND
J2-8
J2-8
– Not used
Not used
Twisted pair #7 – Not used
Not used
–
– Not used
Not used
Twisted pair #8 – Not used
Not used
–
– Not used
Not used
Twisted pair #9 – Not used
Not used
–
Table A-22 Low-Speed X.21 DTE Compact Serial Cable Pinouts (Continued)
Router End (200-Position Plug) Network End (15-Pin Connectors)
Pin Signal Note Direction Signal Pin