68Table 12 — MS/TP Wiring RecommendationsLEGENDTable 13 — Open System Wiring Specifications and Recommended VendorsLEGENDSPECIFICATION RECOMMENDATIONCABLE Single twisted pair, low capacitance, CL2P, 22 AWG (7x30), TC foam FEP, plenum-rated cableCONDUCTOR 22 or 24 AWG stranded copper (tin plated)INSULATION Foamed FEP 0.015 in. (0.381 mm) wall 0.060 in. (1.524 mm) ODCOLOR CODE Black/WhiteTWIST LAY 2 in. (50.8 mm) lay on pair 6 twists/foot (20 twists/m) nominalSHIELDING Aluminum/Mylar shield with 24 AWG TC drain wireJACKET SmokeGard Jacket (SmokeGard PVC) 0.021 in. (0.5334 mm) wall 0.175 in. (4.445 mm) OD.Halar Jacket (E-CTFE) 0.010 in. (0.254 mm) wall 0.144 in. (3.6576 mm) OD.DC RESISTANCE 15.2 Ohms/1000 ft (50 Ohms/km) nominalCAPACITANCE 12.5 pF/ft (41 pF/meter) nominal conductor to conductorCHARACTERISTIC IMPEDANCE 100 Ohms nominalWEIGHT 12 lb/1000 ft (17.9 kg/km)UL TEMPERATURE RATING SmokeGard 167°F (75°C)Halar -40 to 302°F (-40 to 150°C)VOLTAGE 300 vac, power limitedLISTING UL: NEC CL2P or betterAWG — American Wire GageCL2P — Class 2 Plenum CableDC — Direct CurrentFEP — Fluorinated Ethylene PolymerNEC — National Electrical CodeOD — Outside DiameterTC — Tinned CopperUL — Underwriters LaboratoriesWIRING SPECIFICATIONS RECOMMENDED VENDORS AND PART NUMBERSWIRE TYPE DESCRIPTION CONNECT AIRINTERNATIONAL BELDEN RMCORPCONTRACTORSWIRE ANDCABLEMS/TPNETWORK(RS-485)22 AWG, single twisted shielded pair, low capacitance,CL2P, TC foam FEP, plenum rated. See MS/TP InstallationGuide for specifications.W221P-22227 — 25160PV CLP0520LC24 AWG, single twisted shielded pair, low capacitance,CL2P, TC foam FEP, plenum rated. See MS/TP InstallationGuidefor specifications.W241P-2000F 82841 25120-OR —RNET 4 conductor, unshielded, CMP, 18 AWG, plenum rated. W184C-2099BLB 6302UE 21450 CLP0442AWG — American Wire GageCL2P — Class 2 Plenum CableCMP — Communications Plenum RatedFEP — Fluorinated Ethylene PolymerTC — Tinned Copper