CAT5e Riser CMR Rated 1000ft UTP Ethernet Cable 24AWG 350MHz – Black
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Description
Cat5e Riser CMR 1000ft Ethernet Cable Black — Technical Overview
The 52Networks Cat5e Riser CMR 1000ft Ethernet Cable Black (SKU: 52N-5CMR-BLK) is an indoor commercial-grade unshielded twisted pair (U/UTP) bulk networking cable engineered for vertical riser runs, in-wall drops, exposed dark ceilings, and server rack installations. Constructed with 24 AWG 4-pair conductors, High-Density Polyethylene (HDPE) insulation, and a flame-retardant CMR riser-rated black PVC jacket, it supports 350MHz bandwidth and 10/100/1000 Mbps Gigabit Ethernet (1000BASE-T) up to 328ft (100m). Compliant with NEC Article 800 CMR, ANSI/TIA-568.2-D, and RoHS standards, it ships in a tangle-free 1000ft Easy Pull Box for fast deployment across commercial offices, AV venues, retail facilities, and residential networks.
Engineered for Vertical Riser Shafts, Exposed Dark Ceilings & Server Racks
When installing structured network cabling vertically between floors, inside wall cavities, or through non-plenum utility and elevator shafts, standard patch cable violates building safety codes. Under the National Electrical Code (NEC Article 800), vertical runs require a CMR (Communications Multipurpose Cable, Riser) rating engineered to self-extinguish and prevent flames from traveling floor-to-floor in the event of a fire.
Our Cat5e Riser CMR 1000ft Ethernet Cable Black satisfies indoor riser safety codes while providing a discreet matte black jacket that blends invisibly into open industrial ceilings, stage rigging, and black 4-post server racks. Low-voltage contractors and IT administrators rely on black Cat5e riser cabling for clean, unobtrusive runs. Need other colors or higher-bandwidth cabling? Browse our full line of Bulk Ethernet Cables or upgrade to our Cat6 Plenum Bare Copper Cable 1000ft for active air-handling spaces.
Core Engineering & Installation Advantages
🔥 CMR Riser Fire-Safety Jacket
Formulated with a flame-retardant black PVC compound rated to UL 1666 / NEC Article 800 CMR riser standards, preventing vertical flame propagation in wall cavities and multi-story riser shafts.
⚡ 350MHz Gigabit Headroom
Swept and tested up to 350MHz—more than triple the standard 100MHz Cat5e requirement—ensuring reliable 10/100/1000BASE-T Gigabit Ethernet transmission with minimal crosstalk.
🎯 Discreet Architectural Black Jacket
Blends invisibly into open black ceilings, wire-mesh cable baskets, and server racks for a clean professional aesthetic.
📦 Tangle-Free 1000ft Easy Pull Box
Packaged in a reinforced job-site pull box with a wide payout tube and sequential 2-foot footage markings printed along the jacket for snag-free conduit and wall-stud pulls.
Key Features of Cat5e Riser CMR 1000ft Ethernet Cable Black
- 24 AWG 4-Pair U/UTP Construction: Precision-twisted pairs minimize Near-End Crosstalk (NEXT) and electromagnetic interference (EMI) across indoor runs.
- 350MHz High-Speed Bandwidth: Supports 10BASE-T, 100BASE-TX Fast Ethernet, and 1000BASE-T Gigabit Ethernet up to 328 feet (100 meters).
- CMR Riser Fire Rating: Code-compliant for indoor vertical runs between floors, inside walls, and through non-plenum raceways and cable trays.
- PoE Application Ready: Suitable for powering VoIP desk phones, wireless access points, and IP surveillance cameras when installed within applicable PoE guidelines.
- Universal Termination Compatibility: Terminates cleanly into standard Cat5e RJ45 Keystone Jacks, Cat5e Patch Panels, and RJ45 crimp connectors.
- Sequential Footage Markings: Marked every 2 feet along the outer jacket so technicians can measure exact run lengths and track remaining cable in the box.
- Discreet Black Aesthetic: Ideal for exposed ceilings and AV installations.
Conductor & Physical Specifications
| Specification Parameter | Technical Detail |
|---|---|
| Product SKU / Part Number | 52N-5CMR-BLK |
| Jacket Color & Application | Black (Indoor Vertical Risers, Exposed Ceilings, AV Racks & Server Cabinets) |
| Cable Category & Type | Category 5e (CAT5e) Unshielded Twisted Pair (U/UTP) |
| Conductor Gauge | 24 AWG Solid (0.50mm Nominal Diameter) |
| Number of Pairs | 4 Pairs (8 Conductors) with Standard TIA/EIA-568 Color-Striped Coding |
| Conductor Insulation Material | HDPE (High-Density Polyethylene) |
| Outer Jacket Material & Rating | CMR Riser-Rated Flame-Retardant PVC (Black) |
| Total Length & Packaging | 1000 ft (305m) | Heavy-Duty Tangle-Free Pull Box with 2ft Sequential Markings |
Electrical, Performance & Compliance Specifications
| Performance & Compliance Metric | Verified Status / Rating |
|---|---|
| Tested Frequency Bandwidth | Up to 350 MHz |
| Supported Ethernet Speeds | 10/100/1000 Mbps (Up to 1 Gbps Gigabit Ethernet at 328ft / 100m) |
| Characteristic Impedance | 100 Ohms ± 15% |
| Propagation Delay Skew | ≤ 45 ns / 100m |
| PoE Support | Yes — Suitable for VoIP Phones, Wireless Access Points & Cameras |
| Fire & Riser Safety Rating | CMR Riser Rated — NEC Article 800, UL 1666 Vertical Riser Flame Test Compliant |
| Telecommunications Standards | ANSI/TIA-568.2-D, ISO/IEC 11801, RoHS Compliant |
| Operating Temperature Range | -20°C to +75°C (-4°F to +167°F) |
Frequently Asked Questions (FAQ)
A: This Cat5e bulk cable is tested up to 350MHz and supports full 10/100/1000 Mbps (1 Gbps Gigabit Ethernet) at distances up to 328 feet (100 meters) when installed within standard ANSI/TIA channel guidelines.
A: CMR stands for Communications Multipurpose Cable, Riser. Under NEC Article 800, it is engineered for indoor vertical cable runs between floors, inside wall cavities, and through non-plenum riser shafts where fire-resistant jacket construction is required to stop flames from spreading floor-to-floor. (For active HVAC air-handling drop ceilings, use our CMP Plenum-rated line).
A: Black riser cable is the preferred choice for exposed industrial ceilings (such as in retail stores, restaurants, or loft offices) where ductwork and trusses are painted black, as well as for clean cable management inside black server racks.
A: Yes. This 24 AWG 4-pair Cat5e UTP cable is widely used with Power over Ethernet (PoE) endpoints such as VoIP desk phones, wireless access points, and IP cameras when installed within applicable PoE distance and load guidelines.
A: Every box contains 1000 feet (305 meters) of black Cat5e CMR cable wound inside a heavy-duty, tangle-free Easy Pull Box with sequential footage markings printed every 2 feet along the jacket.
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