Epson RC90 User Manual

2. Installation
18 RC700 / RC90 Option Fieldbus I/O Rev.14
Trunk Line and Drop Line
Trunk line is a backbone cable of DeviceNet network with terminating resistors on the
both ends.
Drop line is a branch of the trunk line.
Drop Lines.
- No limits on the number of T-branch
- Limits on the length of drop lines
T-branch
Terminating
resistor
Trunk Line
Terminating
resistor
For DeviceNet, 5-wire cables are used for trunk lines and drop lines. Commercially
available DeviceNet cables can be used. There are two types of DeviceNet cables: Thick
cable and Thin cable. Environment-resistant cable and flexible cable are available. For
details of cables, see ODVA’s Web site (http://www.odva.org/).
Thick Cable
Thin Cable
Communications Cable Signal
Wire Type
Color
Details of Signal
Wire Identity
Signal wire
Blue
Signal
Low
CAN L
White
Signal
High
CAN H
Power wire
Red
Communications Power
Positive
V+
Black
Communications Power
Negative
V−
Shield wire
-
Shield
S
Braid Shield
Signal Wire
(Blue/White)
Power Wire
(Red/Black)
11.2 to 12.1 mm outside diameter
Shield Wire
Braid Shield
Signal Wire
(Blue/White)
Power Wire
(Red/Black)
Shield Wire
6.9 mm outside diameter

Epson RC90 Specifications

General

Brand	Epson
Model	RC90
Category	Controller
Language	English