Devicenet Drop or Trunk bus cable is designed for use on Allen Bradley DeviceNet™ Systems. These cables have excellent electrical screening and incorporate two differently sized pairs: pair A for data transmission and pair B (larger) for power.
Two versions of this cable are available. The larger Trunk (or thick) version is used for backbone wiring and the smaller Drop (or thin) version is used to connect sensors, actuators and switching to the Trunk cable. LSZH (low smoke zero halogen) and LSF (low smoke and fume) versions for increased fire safety are generally available on request.
Note: low smoke zero halogen / halogen free (LSZH, LSOH, LSHF, OHLS) should not be confused with LSF (low smoke and fume), an in-depth explanation is shown on our LSZH Control Flex front page.
|Construction – Devicenet Drop or Trunk|
|stranded tinned copper conductors|
|polyethylene (PE) core insulation|
|cores twisted into pairs|
|individual aluminium/polyester foil screens|
|common tinned copper drain wire|
|overall tinned copper wire braid screen|
|violet outer sheath as standard (material varies)|
|Technical – Devicenet Drop or Trunk|
|conductor sizes:||Drop cable pair A (data) = 24awg & pair B (power) = 22awg|
|Trunk cable pair A (data) = 18awg & pair B (power) = 15awg|
|conductor make-up:||Drop cable pair A = 19x 0.13mm & pair B = 19x 0.16mm|
|Trunk cable pair A = 19x 0.25mm & pair B = 19x 0.34mm|
|hi-flex Trunk pair A = 40x 0.18mm & pair B = 84x 0.16mm|
|as AWG chart, see Stranding/Resistance page|
|voltage rating:||300V operating, 2000v test|
|pair A impedance:||120 Ohm (±12 Ω) @ 1 MHz (characteristic)|
|pair A capacitance:||39.8 nF/km @ 1kHz (wire/wire)|
|temperature range:||-25°C to +80°C operating (based on PVC versions)|
|core identification:||pair A (data) coloured red & black|
|pair B (power) coloured white & blue|
A printable PDF specification is available here: Devicenet Drop or Trunk 2 pair bus.
For more bus cables return to the Fieldbus Cables front page.