Extron CTLP/500 (part number 22-119-02) — a 500 ft plenum-rated Comm-Link spool for control runs above the ceiling that do not warrant a 1,000 ft reel.

Everything about the cable's electrical design matches the larger CTLP spool; only the put-up changes. Four conductors share one blue jacket: an 18 AWG pair to carry operating power out to a remote panel, and a shielded 22 AWG pair to carry the serial or contact traffic between processor and panel. Foamed FEP insulation and FEP inner jackets are what earn the plenum listing.

Key Capabilities

• 500 ft (152.4 m) spool — the shorter of the two standard CTLP put-ups
• NEC CMP, NFPA 262 and CSA FT-6 ratings for air-handling spaces
• Aluminum/polyester tape shield at 100% coverage over a 24 AWG tinned copper drain
• 18 AWG conductors: 19/30 stranding, 0.048 in (1.22 mm) bare copper
• 22 AWG conductors: 7/30 stranding, 0.030 in (0.76 mm) bare copper
• 0.207 in (5.26 mm) nominal OD keeps conduit and J-hook fill low

Where It Is Used

Single-floor classroom retrofits, conference-room refreshes, clinic and imaging-suite builds, and control-room upgrades where a handful of drops run through plenum ceiling space. The 500 ft reel is easy to stage on a cart and hand-pull without a jack.

Specifications at a Glance

• Length: 500 ft (152.4 m) spool
• Rating: Plenum (CMP)
• Nominal OD: 0.207 in (5.26 mm)
• Shield DCR: 26 ohms/1,000 ft (85.3 ohms/km)
• Shipping weight: 22 lbs (9.9 kg)

Also referenced as Extron CTLP500, CTLP-500, part number 2211902.