Installation guide

A-64 Cisco 4000 Series Installation Guide
Serial Cables
J8-28
J8-27
I_CTS/RTS+
I_CTS/RTS-
Twisted pair #4 <—
<—
CONTROL+
CONTROL-
J1-3
J1-10
J8-50
J8-49
O_TXD/RXD+
O_TXD/RXD-
Twisted pair #2 —>
—>
RECEIVE+
RECEIVE-
J1-4
J1-11
J8-35
J8-34
O_RTS/CTS+
O_RTS/CTS-
Twisted pair #5 —>
—>
INDICATION+
INDICATION-
J1-5
J1-12
J8-48
J8-47
O_TXCE/RXC+
O_TXCE/RXC-
Twisted pair #3 —>
—>
TIMING+
TIMING-
J1-6
J1-13
J8-40
J8-33
SIG_GROUND
SIG_GROUND
Twisted pair #6 – SIG GND
SIG GND
J1-8
J1-8
– 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
–
SHIELD_GROUND Braid SHIELD GND J2-1
J8-55
J8-56
I_RXD/TXD+
I_RXD/TXD-
Twisted pair #1 <—
<—
TRANSMIT+
TRANSMIT-
J2-2
J2-9
J8-73
J8-74
I_CTS/RTS+
I_CTS/RTS-
Twisted pair #4 <—
<—
CONTROL+
CONTROL-
J2-3
J2-10
J8-51
J8-52
O_TXD/RXD+
O_TXD/RXD-
Twisted pair #2 —>
—>
RECEIVE+
RECEIVE-
J2-4
J2-11
J8-66
J8-67
O_RTS/CTS+
O_RTS/CTS-
Twisted pair #5 —>
—>
INDICATION+
INDICATION-
J2-5
J2-12
Table A-23 Low-Speed X.21 DCE Compact Octal Serial Cable Pinouts
(Continued)
Router End (200-Position Plug) Network End (15-Pin Connectors)
Pin Signal Note Direction Signal Pin