Installation guide

A-28 Cisco 4000 Series Installation Guide
Serial Cables
V.35 Dual Serial Module Cable Assembly
Figure A-6 shows the dual serial module V.35 cable assembly with the resistor (1/4 watt,
±1%, 301 ohms). Table A-12 lists the DTE pinouts; Table A-13 lists the DCE pinouts.
Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to
DTE.
J1-1
J1-2
CTS/RTS+
CTS/RTS–
Twisted pair no. 1 <—
<—
J2-7
J2-25
RS+
RS–
J1-24
J1-23
TXC/RXC+
TXC/RXC–
Twisted pair no. 9 —>
—>
J2-8
J2-26
RT+
RT–
J1-9
J1-10
RTS/CTS+
RTS/CTS–
Twisted pair no. 5 —>
—>
J2-9
J2-27
CS+
CS–
J1-29
J1-30
NIL/LL
Circuit_GND
Twisted pair no. 12 —>
–
J2-10
J2-37
LL
SC
J1-7
J1-8
DTR/DSR+
DTR/DSR–
Twisted pair no. 4 —>
—>
J2-11
J2-29
DM+
DM–
J1-3
J1-4
DSR/DTR+
DSR/DTR–
Twisted pair no. 2 <—
<—
J2-12
J2-30
TR+
TR–
J1-5
J1-6
DCD/DCD+
DCD/DCD–
Twisted pair no. 3 —>
—>
J2-13
J2-31
RR+
RR–
J1-26
J1-25
RXC/TXCE+
RXC/TXCE–
Twisted pair no. 10 <—
<—
J2-17
J2-35
TT+
TT–
J1-15
J1-16
Circuit_GND
Circuit_GND
Twisted pair no. 8 _
_
J2-19
J2-20
SG
RC
Table A-11 EIA/TIA-449 DCE Four-Port Cable Pinouts (DB-60 to DB-37)
60 Pin Signal Name Note
Directio
n 37 Pin Signal Name