IAI DeviceNet MSEL Series, Operation Manuals

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11. Common Items and Others
78
8. Common Items and Others
8.1 Communication Cable
For the DeviceNet communication cable, use a dedicated 5-wire DeviceNet cable conforming to the
DeviceNet Specification. There are two types of dedicated cables: large size and small size.
(Note) Take note that if a small-size cable is used, the maximum network length becomes 100 m or less
regardless of the baud rate setting.
Cables by Omron or SWCC Showa Holdings
Large-size cable
(thick cable)
Small-size cable
(thin cable) Item
Signal line Power line Signal line Power line
Model DCA2-5C10, TDN18 series DCA1-5C10, TDN24 series
Conductor cross-
section area
0.86 mm
2
2.17 mm
2
0.20 mm
2
0.38 mm
2
Conductor outer
diameter
1.21 mm 1.92 mm 0.60 mm 0.80 mm
Color Blue, white Red, black Blue, white Red, black
Impedance
120   10%
-
120   10%
-
Propagation delay 1.36 ns/ft - 1.36 ns/ft -
Attenuation ratio 500 kHz: 0.25 dB/ft
125 kHz: 0.13 dB/ft
- 500 kHz: 0.50 dB/ft
125 kHz: 0.29 dB/ft
-
Conductor resistance
(at 20  C)
6.9  /1000 ft
22.6  /1000 m
2.7  /1000 ft
8.9  /1000 m
28  /1000 ft
91.9  /1000 m
17.5  /1000 ft
57.4  /1000 m
Maximum current - 8A - 3A
Outer diameter of
finished cable
11.2 ~ 12.1 mm 6.9 mm
Cables by Allen-Bradley
Large-size cable
(thick cable)
Small-size cable
(thin cable) Item
Signal line Power line Signal line Power line
Model 1485C-P1-A50 1485C-P1-C50
Conductor cross-
section area
0.82 mm
2
1.65 mm
2
0.20 mm
2
0.33 mm
2
Conductor outer
diameter
1.17 mm 1.68 mm 0.60 mm 0.79 mm
Color Blue, white Red, black Blue, white Red, black
Impedance
120   10%
-
120   10%
-
Propagation delay 1.36 ns/ft - 1.36 ns/ft -
Attenuation ratio 500 kHz: 0.25 dB/ft
125 kHz: 0.13 dB/ft
- 500 kHz: 0.50 dB/ft
125 kHz: 0.29 dB/ft
-
Conductor resistance 6.9
 /1000 ft
22.6  /1000 m
3.6  /1000 ft
11.8  /1000 m
28  /1000 ft
91.9  /1000 m
17.5  /1000 ft
57.4  /1000 m
Maximum current - 8A - 3A
Outer diameter of
finished cable
11.2 ~ 12.1 mm 6.9 mm
11.1
11.