About Direct Connection; About Connectors - Parker H Series Installation & Service Instructions Manual

1-10 Get Started
Wire Wire Usage
Color Identity Round
white CAN_H signal
blue CAN_L signal
bare drain shield
black V- power
red V+ power
Publication DNET-UM072C-EN-P - July 2004

About direct connection

Usage
Flat
Connect devices directly to the trunk line only if you can later remove the devices
without disturbing communications on the cable system.This is called a
signal
"zero-length" drop, because it adds nothing (zero) when calculating cumulative
signal
drop line length.
n/a
power
IMPORTANT
power

About connectors

Connectors attach cables to devices or other components of the DeviceNet
cable system. Field-installable connections are made with either sealed or open
connectors.
Connector
Sealed
Open
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 trunk line of
the cable system.
device with
removable
open-style
connector
41674
Description
Mini-style: Attaches to taps and thick and thin cable.
Micro-style: Attaches to thin cable only - has a reduced
current rating.
Plug-in: Cable wires attach to a removable connector.
Fixed: Cable wires attach directly to non-removable screw
terminals (or equivalent) on device.
device with
fixed, open-style
connector
41839