DCN4-BR4D Omron, DCN4-BR4D Datasheet - Page 47

• Manufacturer Part Number: DCN4-BR4D
• Description: Thin Cable-Flat Cable Conv Con
• Manufacturer: Omron

Specifications of DCN4-BR4D

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Network Configuration Overview
2-1-3
Definition of the
Maximum Network
Length
Definition of Branch
Line Length
26
Termi-
nator
T-branch made with a T-branch Tap
or T-branch Connector
Network Configuration Restrictions
Maximum network length: 100 m when baud rate is 500 kbps
(When thick cable is used, the network length can be up to 250 m max.
with a 250 kbps baud rate or 500 m max. with a 125 kbps baud rate.)
Node
The max. branch line
length (from the trunk line
to the last node) is 6 m.
Node
The following table shows the maximum cable lengths and maximum current
for the various cable type/baud rate combinations.
The maximum network length is the distance between the two nodes that are
farthest apart or the distance between the terminators, whichever is greater.
(The trunk line length and maximum network length are not always the same.)
A branch line cannot be longer than 6 m.
The branch line length is the distance from the point in the trunk line where
the original branch was made to the end of the branch.
T-branch Tap
with terminator
Thick cable
Thin cable
Flat cable
Trunk line
Cable type
Communications
power supply
(24 V DC)
Power
Supply
Tap
Node
500 kbps
250 kbps
125 kbps
500 kbps
250 kbps
125 kbps
500 kbps
250 kbps
125 kbps
The maximum network length is the
longer of these two distances.
Baud rate
Branch
line
Ground the
network at only
one point.
Branch
line
Branch line
Node
Node
Node
Node
100 m
250 m
500 m
100 m
100 m
100 m
75 m
150 m
265 m
Current capacity
of trunk line
Thick cable: 8A
Thin cable: 3 A
network
length
Max.
Node
Communi-
cations
power
supply
6 m max.
Branch
length
line
Node
Node
Node
39 m
78 m
156 m
39 m
78 m
156 m
35 m
48 m
135 m
branch
length
Total
line
Terminal Block
with terminator
Section 2-1
Node
8 A
3 A
5 A
capacity
Current
Termi-
nator