Title: Hardware Installation Guide.pdf
Communication cables exceeding 4000 feet can also create noise and signal reflection problems if proper cable is not used or if the cable is not correctly terminated.Belden Wire SpecificationsTrade Number UL NEC Type CSA CertificationNumber of PairsNominal D.C. R. ConductorShieldNominal Impedance (Ohms)Nominal CapacitancepF/feetpF/meter9841124.0 ohms/M3.35 ohms/M12012.842NEC CM CSA78.7 ohms/ km11.0 ohms/K9842224.0 ohms/M2.2 ohms/M12012.842NEC CM CSA78.7 ohms/ km7.2 ohms/K88102224.0 ohms/M15.5 ohms/M10012.9542NEC CMP CSA78.7 ohms/ km50.9 ohms/kmrevision 6 — 21Hardware Installation GuidelinesCable Cross Reference TablePurposeCable typeGauge Cond. Descrip-tionBelden numberTappan numberGeneral Cable numberWest Penn numberRS-485, 2-wireNon- plenum241POverall shield9841L19827C0841AD4851RS-485, 2-wirePlenum 241POverall shield82841, 89841M19899, T19984n/a, C8117n/a n/aRS-485, 4-wire