About direct connection, About open-style connectors – Rockwell Automation DeviceNet Media Design Installation Guide User Manual

Page 49

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Publication DNET-UM072C-EN-P - July 2004

Identify Cable System Components 2-13

About direct connection

Connect devices directly to the trunk line only if you can later remove the
devices without disturbing communications on the cable system.

About open-style connectors

Open-style connectors come in two primary varieties:

five-position (5 pin linear plug)

ten-position (10 pin linear plug)

Ten-position connectors provide easier daisy-chaining because there is an
independent wire chamber for each wire (entering cable and exiting cable).

IMPORTANT

If a device provides only fixed-terminal blocks for its
connection, you must connect it to the cable system by a
drop line. Doing this allows you to remove the device at the
tap without disturbing communications on the cable
system.

31411-M

device with
fixed
open-style
connector

trunk line

disconnect
here

drop line

Wire
Color

Wire
Identity

Usage
Round

white

CAN_H

signal

blue

CAN_L

signal

bare

drain

shield

black

V-

power

red

V+

power

jack screw

jack screw

mechanical key

10-pin linear plug (open)

mechanical key

5 pin linear plug (open)

jack screw

jack screw

Blue

Shield or Bare

White

Red

Black

41707

41708

Blue

Shield or Bare

White

Red

Black

probe holes

5-pin linear to micro adapter

Shield or Bare

Red

Black

Blue

White

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