Stop bar lights and guard lights provide traffic control on taxiways intersecting an active runway and are required for all SMGCS operations under low visibility conditions.

System Features with SmartSwitch
• Communications via dedicated multi-drop serial link is completely independent of primary loop equipment. High speed screened single twisted pair fieldbus cable insulated to 5 kV.
• Provides monitoring at the individual fixture level.
• Expandable to support lead on light and other SMGCS functions.
• Supports L-804 elevated guard lights (flash, monitor and control).

Why Our ZA489-8 is Better
• The L-852S stop bar light is traffic signal red, and the L-852G guard light is traffic signal yellow, in accordance with ITE Standard for Vehicle Traffic Control Signal Heads.
• 8" sealed optical cartridge fits 12" adapter ring and is held with two stainless steel bolts for ease of maintenance.
• Lightweight and robust aluminum alloy construction.
• Prisms require no sealant.
• Pre-focused optics simplify maintenance.
• Pressure test plug ensures moisture-proof light cavity.
• Low profile: 0.47" (12mm) above grade.
• Long life halogen lamps: 3500 hours in normal use.
• L-852S and L-852G use interchangeable parts.

Specifications (ZA489-8)
• 6.6A from 100W, or 200W isolating transformer. Uses 1@105W lamp.
• Powder coat finish in golden yellow or NATO green. Stainless steel fasteners.
• Fixture net weight 31 lb. (14kg). Gross weight 33 lb. (15kg). Carton size 12.7 in. x 12.7 in. x 5 in. (323mm x 323mm x 127mm).