Extron CTL/1000 (part number 22-148-03) — a 1,000 ft spool of non-plenum Comm-Link cable that puts a control link and its power feed into a single pull.

One jacket holds four conductors. Two of them are 18 AWG bare copper, sized to push operating power out to a remote panel without a noticeable drop; the other two are 22 AWG, twisted together and wrapped in a shield so serial traffic stays clean over the run. Because the assembly is non-plenum, it belongs in walls, risers, floor troughs and other pathways that are not part of a building's return-air system.

Key Capabilities

• Composite build: two 18 AWG insulated conductors and a shielded pair of 22 AWG conductors
• 18 AWG legs read 6.2 ohms/1,000 ft (20.3 ohms/km) nominal DCR for remote panel power
• 22 AWG communication pair reads 14.7 ohms/1,000 ft (48.2 ohms/km) nominal
• Shielding combines aluminum foil at 100% coverage with a 95% tinned copper serve
• Gray PVC outer jacket over gas-injected foamed polyolefin insulation, 0.220 in (5.59 mm) nominal OD
• Rated NEC CM, UL 1581 and CSA FT-4, with a 60 °C UL AWM temperature rating

Where It Is Used

Integrators pull CTL between control processors and the wall panels, podium plates and touchpanels they drive — classrooms and lecture halls, corporate boardrooms, houses of worship, courtrooms and hospital procedure suites. Any room where a controller has to both talk to a panel and power it is a candidate.

Specifications at a Glance

• Length: 1,000 ft (304.8 m) spool
• Rating: Non-plenum
• Outer jacket: Gray PVC
• Nominal OD: 0.220 in (5.59 mm)
• Shipping weight: 44 lbs (20.0 kg)

Note: Extron lists this bulk cable as not certified for use in most countries in Europe.

Also referenced as Extron CTL1000, CTL-1000, part number 2214803.