Cisco 2500 Series Installation And Configuration Guide

J1-45
Shield
Circuit_GND
-
Twisted pair no. 12 -
-
J2-B
Shield
Circuit GND
-
J1-35
Shield
CTS/RTS
-
Twisted pair no. 8 <--
-
J2-C
Shield
RTS
-
J1-42
Shield
RTS/CTS
-
Twisted pair no. 9 -->
-
J2-D
Shield
CTS
-
J1-43
Shield
DTR/DSR
-
Twisted pair no. 10 -->
-
J2-E
Shield
DSR
-
J1-44
Shield
LL/DCD
-
Twisted pair no. 11 -->
-
J2-F
Shield
RLSD
-
J1-34
Shield
DSR/DTR
-
Twisted pair no. 7 <--
-
J2-H
Shield
DTR
-
J1-33
Shield
DCD/LL
-
Twisted pair no. 6 <--
-
J2-K
Shield
LT
-
J1-28
J1-27
RxD/TxD+
RxD/TxD-
Twisted pair no. 5 <--
<--
J2-P
J2-S
SD+
SD-
J1-18
J1-17
TxD/RxD+
TxD/RxD-
Twisted pair no. 1 -->
-->
J2-R
J2-T
RD+
RD-
J1-26
J1-25
RxC/TxCE+
RxC/TxCE-
Twisted pair no. 4 <--
<--
J2-U
J2-W
SCTE+
SCTE-
J1-22
J1-21
NIL/RxC+
NIL/RxC-
Twisted pair no. 3 -->
-->
J2-V
J2-X
SCR+
SCR-
J1-20
J1-19
TxCE/TxC+
TxCE/TxC-
Twisted pair no. 2 -->
-->
J2-Y
J2-AA
SCT+
SCT-
X.21
Figure C-10 shows the X.21 cable assembly. Table C-13 lists the DTE pinouts. Table C-14 lists the DCE
pinouts. Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE.
Figure C-10: X.21 Cable Assembly
Cabling
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500/2520/2520_23/c2520cab.htm (15 of 17) [10/27/2000 3:08:10 PM]

Cisco 2500 Series Specifications

General

Brand	Cisco
Model	2500 Series
Category	Controller
Language	English