Black Box FM011 RJ-11 Extension Phone Cable - 15 ft with 1 Male to 2 Female Connectors for Phone/Modem
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Product Features
Technical Overview
This RJ-11 extension cable follows standard telephone wiring specifications with 4-conductor configuration, ensuring proper signal transmission for voice and modem communications. The 15-foot length provides substantial reach while maintaining signal integrity, and the cable construction minimizes interference for reliable performance.
The connector configuration includes one RJ-11 male connector that plugs directly into wall jacks or existing equipment, while the opposite end features two RJ-11 female connectors that accept standard telephone plugs. This design allows you to connect multiple devices or create branching connections from a single source.
This section brings together practical product details such as Cable Type, Cable Characteristic, Cable Length, Weight (Approximate), so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The Black Box FM011 extension cable delivers practical benefits through its thoughtful design and construction. The cable extends connectivity options while maintaining compatibility with standard telephone equipment, providing flexibility in device placement and office layout planning.
Enhanced Connectivity Flexibility
With 15 feet of reach and multiple connector options, this cable allows you to position phones and modems where they're most convenient, reducing clutter and improving workspace organization.
- Extends existing phone lines by 15 feet
- Supports both single and dual device connections
- Maintains standard RJ-11 compatibility
Reliable Performance
Built to telecommunications standards, this cable ensures clear voice transmission and stable modem connections without signal degradation over its 15-foot length.
- Minimizes interference for clear audio
- Supports both voice and data transmission
- Durable construction for long-term use
Deployment / Use Cases
This extension cable serves multiple practical applications in business and residential environments. Its 15-foot length and dual-female connector configuration make it particularly useful for scenarios where devices need to be positioned away from wall outlets or where multiple devices share a single connection point.
Common deployment scenarios include extending phone lines to reach desks positioned away from wall jacks, connecting multiple phones in conference rooms or reception areas from a single outlet, and providing additional reach for modem connections in home office setups. The cable also works well for temporary installations during office reconfigurations or events where temporary phone lines are needed.
Office Desk Extension
Extend phone lines to reach desks that are positioned away from wall jacks, allowing for flexible office layouts without requiring rewiring.
Multi-Device Connectivity
Connect two phones or a phone and modem simultaneously from a single wall outlet, ideal for reception areas or shared workspaces.
Physical Profile
The cable features a standard RJ-11 diameter profile with durable jacket construction that resists kinking and maintains flexibility. At 453.6 grams, the cable has sufficient weight to stay in place without being cumbersome, and the 15-foot length provides practical reach while remaining manageable for storage and deployment. The connectors feature standard telephone-grade plastic housings with gold-plated contacts for reliable connections.
- Weight
- 453.6 g
- Length
- 15 ft
Highlights
- 15-foot RJ-11 extension cable for phone and modem connections
- Features 1 male to 2 female RJ-11 connector configuration
- Supports both voice and data transmission for phones and modems
- Environmentally friendly construction and manufacturing
- Backed by Black Box's lifetime limited warranty
- Standard 4-conductor telephone cable design
- Ideal for extending existing phone lines in office environments
- Allows connection of multiple devices from a single source
Specifications
| Specifications | |
|---|---|
| Manufacturer | Black Box Corporation |
| Manufacturer Part Number | FM011 |
| Brand Name | Black Box |
| Product Name | RJ-11 Extension Phone Cable |
| Product Type | Phone Cable |
| Technical Information | |
| Cable Type | RJ-11 |
| Cable Characteristic | Extension Cable |
| Cable Length | 15 ft |
| Connector Type on First End | RJ-11 Phone/Modem - Male |
| Connector on First End Details | 1 x RJ-11 Phone/Modem - Male |
| Connector Type on Second End | RJ-11 Phone/Modem - Female |
| Connector on Second End Details | 2 x RJ-11 Phone/Modem - Female |
| Device Supported | Phone/Modem |
| Physical Characteristics | |
| Weight (Approximate) | 453.6 g |
| Miscellaneous | |
| Environmentally Friendly | Yes |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What devices are compatible with this RJ-11 extension cable?
This cable is compatible with standard analog telephones, fax machines, and dial-up modems that use RJ-11 connectors. It supports both voice communication and data transmission for modem connections, making it suitable for traditional phone systems and modem-based internet setups in office and home environments.
How does the 1 male to 2 female connector configuration work?
The cable has one RJ-11 male connector on the first end that plugs into a wall jack or existing equipment. The second end features two RJ-11 female connectors, allowing you to connect two separate devices simultaneously or create a branching connection from a single source. This configuration provides flexibility for connecting multiple phones or a phone and modem from one outlet.
What is the maximum recommended length for reliable phone signal transmission?
This cable is specifically designed as a 15-foot extension, which falls within standard telephone cable length specifications for maintaining signal quality. The 15-foot length provides substantial reach while ensuring clear voice transmission and stable modem connections without significant signal degradation that can occur with excessively long cables.
Can this cable be used with VoIP phones or digital phone systems?
This cable is designed for traditional analog telephone systems that use RJ-11 connectors. While it may physically connect to some VoIP phones that have RJ-11 ports, compatibility depends on the specific VoIP system's requirements. For analog telephone adapter (ATA) connections in VoIP setups, this cable can extend the connection between the ATA and traditional analog phones.
What warranty coverage does Black Box provide for this cable?
Black Box provides a lifetime limited warranty for this RJ-11 extension cable. This warranty covers defects in materials and workmanship for the life of the product when used under normal conditions. The warranty reflects the durable construction and reliable performance expected from Black Box telecommunications products.
Is this cable suitable for permanent installation behind walls or in ceilings?
This cable is designed as an extension cable for above-desk or surface-run applications, not for in-wall installation. For permanent behind-wall installations, specifically rated in-wall telephone cable should be used to comply with building codes and fire safety regulations. This extension cable works well for temporary setups, office reconfigurations, or situations where surface running is acceptable.
How many SIP lines or accounts does this phone support?
Communication products are best understood through their line support, connectivity profile, and deployment fit. Those details help buyers confirm desk-phone or conference-room suitability before rollout.
What network or Ethernet connectivity is listed?
Communication products are best understood through their line support, connectivity profile, and deployment fit. Those details help buyers confirm desk-phone or conference-room suitability before rollout.
| Qty | Price | Available |
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