The Motorola SURFboard SB-5100 cable modem is an established DOCSIS 2.0 device that provides broadband internet over cable with solid performance for homes or small offices. With backward compatibility to DOCSIS 1.1, it supports downstream speeds of up to ≈ 38 Mbps and upstream speeds of up to ≈ 30 Mbps. It integrates both Ethernet (10/100Base-T) and USB interfaces, enabling connection flexibility for various user setups. The modem includes a top-mounted Standby button that allows users to disable data ports (Ethernet/USB) while keeping the coaxial RF connection active, increasing security. The front panel features multiple LED indicators (Power, Receive, Send, Online, PC/Activity) plus a built-in HTML diagnostics page for troubleshooting. Certified under global safety and regulatory standards, with efficient RF design and a compact industrial enclosure, the SB-5100 remains a reliable solution for those needing dependable internet access without the premium cost of DOCSIS 3.0 or higher.
Key Features & Benefits:
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Certified for DOCSIS 2.0 and backwards compatible with DOCSIS 1.1.
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Up to 38 Mbps downstream; 30 Mbps upstream.
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Dual interface: 10/100Base-T Ethernet + USB.
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Supports up to 32 users (via Ethernet hub or combination of Ethernet + USB).
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Standby button to isolate data interfaces without cutting off power or RF signal.
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LEDs + HTML diagnostics for status and troubleshooting.
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Compatible with Windows, macOS, Linux, UNIX.
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Certified safety and RF compliance: CE, FCC, etc.
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Nominal power consumption modest; diseño compacto.
Technical Specifications
| Specification | Detail |
|---|---|
| Model / Part Number | Motorola SB-5100 |
| Standards | DOCSIS 2.0 / DOCSIS 1.1 |
| Max Downstream Data Rate | ≈ 38 Mbps |
| Max Upstream Data Rate | ≈ 30 Mbps |
| Interfaces | 10/100Base-T Ethernet; USB |
| Signal Modulation (Downstream) | 64 QAM, 256 QAM |
| Signal Modulation (Upstream) | QAM or QPSK, multiple bandwidths: 200 kHz up to ~6.4 MHz depending on mode |
| Cable RF Connector | F-type, 75 Ω |
| Frequency Range Downstream | ≈ 88-860 MHz |
| Operating Level Range (Downstream) | ≈ -15 to +15 dBmV |
| Power Input | ~100-240 VAC (global), nominal power ~9 W |
| LED Indicators | Power, Receive, Send, Online, PC/Activity |
| Standby Button | Top-mounted to disable data ports |
| User Capacity | Up to 32 users |
| Operating Systems Compatibility | Windows, macOS, Linux, UNIX |
| Dimensions (HxWxD) | ≈ 6.2 × 2.3 × 6.0 inches |
| Compliance & Certifications | CE, FCC, CB scheme, UL etc. |
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