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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
Black Box ELN25TA-0500 CAT3 Telco Bulk Cable
Overview
The Black Box ELN25TA-0500 is a 500-foot spool of Category 3 (CAT3) bulk telco cable. Designed for voice and low-speed data applications, this solid, unshielded cable features a PVC jacket and terminates in a 50-pin connector, making it suitable for connecting PBX systems, key telephone systems, and older network infrastructure where high bandwidth is not a requirement. Its 500-foot length allows for flexible deployment across floors or within large equipment racks.
Compatibility
This cable is intended for use with telecommunications equipment requiring CAT3 performance, specifically systems utilizing 50-pin connectors. It is compatible with legacy PBX systems, key systems, and older data networks that do not exceed 10 Mbps (10BASE-T) or 100 Mbps (100BASE-TX) over short distances. Verify your specific system's connector type and cable requirements before purchase.
Installation Notes
The ELN25TA-0500 features solid conductors, which offer superior performance over stranded wire for longer runs but are less flexible. Ensure proper termination techniques are used to maintain signal integrity. The PVC jacket provides basic protection against abrasion and environmental factors in indoor, controlled environments. Avoid sharp bends or exceeding the minimum bend radius to prevent conductor damage.
What's in the Box
- 1x 500ft Spool of Black Box ELN25TA-0500 CAT3 Telco Bulk Cable
Black Box CAT3 Telco Bulk Cable - Solid - ELN25TA-0500
Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
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System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
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- Access fixed-scope support for rollout planning
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Guides, Tools & Calculators
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