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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 FM805-R2 RJ45 Modular Splitter
Overview
The Black Box FM805-R2 is a passive RJ45 modular splitter designed to divide a single Ethernet network connection into two separate outputs. This device is useful for extending network reach or allowing two devices to share a single network drop where a switch is not feasible or desired. Its compact, black form factor allows for discreet installation in various environments.
Compatibility
This splitter is compatible with standard RJ45 (8P8C) connectors and unshielded twisted pair (UTP) Ethernet cabling. It functions by splitting the wire pairs, allowing for two separate 10/100 Mbps connections. It is not designed for Gigabit Ethernet (1000 Mbps) or Power over Ethernet (PoE) transmission due to the passive nature of the splitting and the reduced bandwidth per output.
Installation Notes
Installation involves connecting a single Ethernet cable to the input port and then connecting two separate Ethernet cables to the output ports. Ensure that the total bandwidth requirement does not exceed the capabilities of a single network drop when using this splitter. It is recommended to use this device for non-critical, lower-bandwidth applications or for temporary network extensions.
What's in the Box
- 1x Black Box FM805-R2 RJ45 Modular Splitter
Black Box RJ45 Modular Splitter - B-pin Unshielded - FM805-R2
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.
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System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
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