SMC Networks EX120-SDN1 - Manual (Page 6)

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Cable specification
CAUTION
For Multi drop connection, prepare plug connector for T branch separately.
(Example, TMSTBP 2.5...- STF -5.08 made by Phoenix Contact Corp.)
Use DeviceNet special cable for communication cable.
Be sure to connect DeviceNet special terminal resistor with both ends of trunk.
SMC CORPORATION
Doc.No.EX ## -OME0015
Thick cable Thin cable
Item Communication
Signal
Power upply
Communication
Signal
Power supply
Conductor
cross section
0.82 mm 2 1.65 mm 2 0.20 mm 2 0.33 mm 2
Colors Blue, W hite Red, Black Blue, W hite Red, Black
Im pedance
120Ω ±
10%(1MHz)
― ―
120Ω ±
10%(1MHz)
― ―
Propagation
delay
1.36ns / ft(m ax) ― ― 1.36ns / ft(m ax) ― ―
Attenuation
rate
500k：0.25dB / ft
125k：0.13dB / ft
1.00M：0.40dB / ft
― ―
500k：0.50dB / ft
125k：0.29dB / ft
1.00M：0.70dB / ft
― ―
Conductor
resistance
6.9Ω /
1000ft(m ax)
3.6Ω /
1000ft
(m ax)
28Ω /
1000ft(m ax)
17.5Ω /
1000ft(max)