DCN1-2R Omron, DCN1-2R Datasheet - Page 113

• Manufacturer Part Number: DCN1-2R
• Description: DEVICENET T-TAP 1 DROP VERT
• Manufacturer: Omron

Specifications of DCN1-2R

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DCN12R

Step 1: Evaluating the Configuration with Graphs
3-4
92
Step 1: Evaluating the Configuration with Graphs
There is a voltage drop in a communications cable as current flows through
the cable. The voltage drop increases in proportion to the length of the com-
munications cable and the amperage of the current being carried.
The communications power supply at each node must be 11 V DC min. The
following graph shows the maximum current that can be supplied through var-
ious lengths of cable while maintaining the minimum voltage required at the
nodes. (The values in the graph provide some extra margin.)
Thick Cable
Thin Cable
Distance (m) 0
Maximum
current (A)
Distance (m) 0
Maximum
current (A)
3
2
1
0
8
7
6
5
4
3
2
1
0
0
0
10
50
8.00 8.00 5.42 2.93 2.01 1.53 1.23 1.03 0.89 0.78 0.69 0.63
3.00 3.00 3.00 2.06 1.57 1.26 1.06 0.91 0.80 0.71 0.64
20
100
25
10
30
50
150
20
100 150 200 250 300 350 400 450 500
30
40
200
Distance (m)
Distance (m)
40
50
220
50
60
300
60
70
350
70
80
80
400
Section 3-4
90
90
450
100
100
500