Comtrol Cable User Manual

Page 3

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[Documentation number: 2000430 Rev B] 3

Contents

Getting Started .......................................................................................................................5

Overview .......................................................................................................................................................... 5
RS-422 Pinouts ............................................................................................................................................... 5
Standard Comtrol Cables ............................................................................................................................ 5
DTE versus DCE............................................................................................................................................. 6

RS-232 DTE to DCE ................................................................................................................................... 6

Straight-Through Cables ..................................................................................................................... 6

RS-232 DTE to DTE ................................................................................................................................... 6

Null-Modem Cables.............................................................................................................................. 6
Data-Only Null-Modem Cables ........................................................................................................... 7
Control Loopback Cables ..................................................................................................................... 7

RS-422 to DTE Cables ................................................................................................................................ 7

Shielded vs. Unshielded ............................................................................................................................... 7

Building Cables for RocketPort Products........................................................................9

Overview .......................................................................................................................................................... 9
DB9 Serial Cables and Loopback Plugs ................................................................................................... 9

Requirements .............................................................................................................................................. 9
DB9 Pinouts ................................................................................................................................................ 9
DB9 Loopback Plugs................................................................................................................................. 11

RS-232 Female Loopback Plug .......................................................................................................... 11
RS-422 Loopback Plug ....................................................................................................................... 11

DB9 Null-Modem Cables .......................................................................................................................... 11

RS-232 Null-Modem Cable ............................................................................................................... 11
RS-422 Null-Modem Cable ................................................................................................................ 11

DB9 Straight-Through Cables ................................................................................................................. 12

RS-232 Straight-Through Cable........................................................................................................ 12

DB25 Serial Cables and Loopback Plugs ............................................................................................... 12

Requirements ............................................................................................................................................ 12
DB25 Pinouts ............................................................................................................................................ 12
DB25 Loopback Plugs............................................................................................................................... 14

RS-232 Female Loopback Plug .......................................................................................................... 14
RS-422 Female Loopback Plug .......................................................................................................... 14
RS-232 Male Loopback Plug .............................................................................................................. 14
RS-422 Male Loopback Plug .............................................................................................................. 14

RJ11 Serial Cables and Loopback Plugs................................................................................................ 15

Requirements ............................................................................................................................................ 15
RJ11 Pinouts ............................................................................................................................................. 15
RJ11 Loopback Plugs................................................................................................................................ 15

RJ45 Serial Cables and Loopback Plugs................................................................................................ 16

Requirements ............................................................................................................................................ 16
RJ45 Pinouts ............................................................................................................................................. 16

RJ45 Pinouts for Octacable Interface Module (RS-232 Port)........................................................... 16

RJ45 Null-Modem Cables......................................................................................................................... 17

RS-232 Null-Modem Cable ................................................................................................................ 17

RJ45 Straight-Through Cables ................................................................................................................ 17

RS-232 Straight-Through Cable........................................................................................................ 17

RJ45 Loopback Plugs................................................................................................................................ 18

RS-232 Loopback Plug ....................................................................................................................... 18

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