Installation guide

Theater Installation Guide (97127016B) 49
Appendix — RS485 data cable information
Table 5: RS485 non-plenum cable (7122-0203)
Description 1/Pr. 22 AWG FPE shielded cable, 100% aluminum Mylar and 95% tinned copper braid,
300V Type NEC/PLTC LO-CAP (Belden 3105A equivalent)
Conductor AWG size and stranding: 22 AWG 7/0.0096
Material: Tinned copper
Insulation Material: FPE - Foam Polyethylene
Wall thickness: 0.020 inch
Color code Black/Red
Assembly Lay length: 2.5 inch L-H-L
Binder: None
Shield #1: Aluminum polyester foil shield. 100% coverage.
Shield #2: Tinned copper braid shield. 95% coverage.
Drain: 24 AWG 7/32 strand tinned copper
Capacitance 11 pF/ft Nom.
Velocity of Propagation 79.1%
Impedance 120 ohms
DC resistance 17.5 ohms per 1000 ft @ 68°F
Jacket Material: PVC — Polyvinyl Chloride
Wall thickness: 0.038 inch
Diameter: 0.234 inch Nom OD
Color: Black
Temperature: 105°C
Cable weight 33.34 pounds/1000 ft
Markings Type: NEC PLTC
Legend: As desired.