User`s manual

DeviceNet (Master) Function
8-6
8
[5] Communication related devices
In addition to master and slave nodes, the following devices can be used in this system: cables, T branch
taps, power taps, communication connectors, termination connectors, and communication power
supplies. Listed below are the models (manufacturers) of devices currently available.
(1) Cable
Thick or thin five conductor cable is available.
* When using a thin cable for a trunk, make sure that the trunk is not more than 100 m long.
(2) T branch tap
You can connect up to three new branch lines off a single existing branch line.
(3) Power tap
This tap is used to supply power to the five conductor cable when connecting more than one
communication power supply to a single network.
- This tap can be used to connect a single communication power supply to a network.
In this case, you can also use a T branch tap (above), in addition to the power tap.
(4) Communication connector
This module contains one MSTB 2.5/5-STF-5.08AU (with a screw for securing the connector: made by
Phoenix contact).
(5) Termination resistance
Number of
conductors
Manufac-
turers
Type Model
Outside
diameter (mm)
Main use
Five
Signal lines: 2
Power source
lines: 2
Shield: 1
Allen-
Bradley
Thick 1485C-P1-A50 11.6 to 12.1 Trunk
Thin 1485C-P1-C150 6.9 Branch line or trunk *
Omron
Thick DCA2-5C10 11.6 to 12.1 Trunk
Thin DCA1-5C10 6.9 Branch line or trunk *
Nihon Electric
wire & cable
Thick DVN18 12 Trunk
Thin DVN24 7 Branch line or trunk *
Manufacturer Model Number of connectors Remarks
Omron
DCN1-1C
Three (this tap is used to
connect one new branch line)
- Has three connectors for connecting
up to three new lines
- Connects to a termination resistance
DCN1-3C
Five (this tap is used to
connect three new branch
lines)
- Has five connectors for connecting
up to five new lines
- Connects to a termination resistance
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Manufacturer Model Remarks
Omron
DRS1-T Terminal block type termination resistance (121 ohms)
---- Termination resistance attached to the T branch tap (121 ohms)