4-WIRE P-NET cable

550 770 01

4-WIRE P-NET Cable:

4-WIRE P-NET specifies the use of a shielded cable having 2 individual twisted pairs.

The communication pair must have a characteristic impedance of 100 to 120Ω and a minimum core cross-section of 0.22mm² / 24 AWG. To ensure maximum signal integrity over long bus cables, it is recommended that the core cross-section of the communication pair be increased.

Bus length:	Recommended core cross section (communication pair):
0 – 100m	Minimum 0.22 mm²/24 AWG
100m – 400m.	Minimum 0.34 mm²/22 AWG
400m – 600m.	Minimum 0.50 mm²/20 AWG

The size of the power pair should be calculated in consideration of maximum current, voltage drop, cable resistance, bus length etc.

Cable, recommended for 4-WIRE P-NET:

Cable for 4-WIRE P-NET must be carefully selected to ensure stable communication as well as for providing sufficient power for all devices.

Resistance in wire:

mm²	AWG	Ω / km.
0.21	24	88
0.25		72
0.34	22	52
0.5		34
0.52	20	34
0.75		23
0.82	18	22
1.0		18
1.31	16	13
1.5		11
1.68	15	10.4
2.08	14	8.5
2.5		7
2.6	13	6.7

The values in the above table are only intended as a guide; wire cross section area and resistance vary by cupper alloy, number of stranding etc.

4-WIRE P-NET Cable:

Cable, recommended for 4-WIRE P-NET:

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