shielded 4pr cable

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	Question by Stephen Lam posted 20 Dec 2000
	shielded 4pr cable
Dear sir, Please advise if the shielded (not twisted) 4pr low voltage computer cable is suitable for the connection between 100baseTX hubs. One hub is on the ground floor while the other hub is at 11/F. The label on the cable: Type CM Shielded 4PR 24 AWG OR AWM 2919 Low Voltage Computer Cable. Thank you very much for your help.
	Answer by Dmitri Abaimov posted 21 Dec 2000
Stephen, i am almost 100% sure that this cable will not be able to support Ethernet (neither 100Base-T nor even 10Base-T). Twisting pairs is required for high-frequency transmissions and noise cancellation. Your cable may be suitable for low-frequency protocols like serial, RS-232 etc, but not more.
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