Comnet Single Mode 10GB 1330NM 10KM 1 Fiber LC with DDM (Use with SFP-10G-BX10-U) - SFP-10G-BX10-D

Comnet SFP-10G-BX10-D 10Gb Single Mode Fiber Transceiver

Overview

The Comnet SFP-10G-BX10-D is a single-mode fiber transceiver module designed for 10Gbps backbone connectivity in surveillance and enterprise networks where distance and bandwidth are both non-negotiable. This model operates at 1330nm receive wavelength (paired with a 1270nm transmit unit) and delivers up to 10 km of reach over a single fiber strand—meaning one fiber does the work of two in legacy bi-directional systems. Built into a compact LC connector module, it draws under 1.3W, fitting naturally into power-constrained network closets running hot-swap SFP cage chassis.

Key Features

• 10Gbps Data Rate: Moves bulk video from multiple 4K cameras or compressed streams from dozens of lower-res units without bottleneck. A single fiber pair carries the traffic load of 10x copper Gigabit links—real savings on conduit and duct space in dense deployments.
• 1270nm / 1330nm Wavelength Pair: Bidirectional transmission on a single strand using wavelength-division multiplexing (WDM). You'll pair this unit (SFP-10G-BX10-D, the 1330nm Rx side) with its complement (SFP-10G-BX10-U, the 1270nm Rx side) to create one full-duplex link. No second fiber needed between endpoints.
• 10 km Maximum Span: Single-mode fiber reaches 10 kilometers before signal degradation forces repeating or regeneration. Critical for long-haul surveillance backbones connecting remote facilities, parking structures, or highway corridor cameras back to a central NVR or media server.
• LC Duplex Connector: Industry-standard connector type—same footprint as standard Gigabit fiber modules, so it integrates into existing switch cages without special adapters or port modifications. Plug-and-play in any SFP+ slot.
• DDM (Digital Diagnostics Monitoring): Real-time readback of optical power levels, module temperature, bias current, and transceiver voltage. A managed switch will alert you if signal strength drops or module temperature climbs—early warning before a camera feed goes dark during a critical incident.
• Low Power Draw (<1.3W): Fiber transceivers can be power-hungry; this module sips less than 1.3W. In a switch with dozens of SFP+ modules, that's a real difference in PSU burden and heat dissipation inside a network closet.
• High MTBF (3.7M+ hours): Mean time between failures exceeding 3.7 million hours reflects industrial-grade component selection and manufacturing. Over a 10-year surveillance system lifespan, you're looking at extremely low unplanned replacement probability on this module alone.

Integration & Compatibility

The SFP-10G-BX10-D is a hot-swappable module compatible with any switch, router, or media converter equipped with an SFP+ cage slot. It operates at Layer 1 (physical layer)—no drivers, no firmware, no VMS integration required. As long as your network stack supports SFP+ modules and the remote endpoint has the paired SFP-10G-BX10-U unit, the link will negotiate and pass traffic. Confirm your switch supports 10Gb SFP+ and DDM readback if you want to leverage diagnostics; standard gigabit switches do not have SFP+ cages.

Typical surveillance deployments pair this transceiver with fiber-optic cable runs from a core switch in your data center to remote camera sites (schools, warehouses, multi-building campuses). Each fiber strand carries 10Gbps bidirectionally—enough for a mix of 4K streams, analytics data, and control traffic in a single conduit.

What's in the Box

The SFP-10G-BX10-D ships as a single transceiver module with no additional cables, connectors, or mounting hardware. You will need to source the companion SFP-10G-BX10-U unit, a compatible single-mode fiber cable (OS2 or equivalent), LC-to-LC jumpers at each end, and an SFP+ cage-equipped network switch or media converter.

Frequently Asked Questions

Q: What's the difference between SFP-10G-BX10-D and the U variant?

A: The D model receives at 1330nm and transmits at 1270nm; the U model does the opposite. Deployed as a pair, they create one full-duplex 10Gbps link over a single fiber strand. You cannot use two D units or two U units together.

Q: Will the SFP-10G-BX10-D work in my existing gigabit switch?

A: No. This is a 10Gbps transceiver designed for SFP+ cages found in switches, routers, and media converters rated for 10Gb throughput. Standard Gigabit switches have SFP (not SFP+) slots, which are mechanically compatible but lack the electrical signaling for 10Gbps operation.

Q: How do I monitor optical signal health?

A: The DDM feature broadcasts real-time diagnostics (RX power, TX power, module temperature, bias current) to any managed network switch. Your switch management interface will display these values; if RX power drops unexpectedly, you have a degraded fiber or connector issue before the link fails.

Q: Can I use multimode fiber with the SFP-10G-BX10-D?

A: No. This is a single-mode transceiver. Multimode fiber has different propagation characteristics and will not couple correctly, resulting in signal loss or complete failure. Use OS2 or equivalent single-mode fiber rated for 1270–1330nm wavelengths.

Q: What's the warranty coverage?

A: Refer to Comnet's standard hardware warranty terms at the time of purchase from your distributor. DDM diagnostics and MTBF ratings provide visibility into module health, allowing early detection of degradation.

Q: Is the SFP-10G-BX10-D NDAA Section 889 compliant?

A: NDAA compliance status depends on Comnet's sourcing and manufacturing certifications. Consult your Comnet distributor or request a certificate of compliance for your procurement requirements.

James Everett

When I'm designing a surveillance backbone for a multi-site customer—think a school district with a dozen buildings or a logistics company with remote truck yards—the SFP-10G-BX10-D is how I move bulk compressed video and real-time metadata across distances that would choke a copper link. The 10 km reach on a single fiber strand is the real story here. Pair it with its complement (SFP-10G-BX10-U) and you've got full-duplex 10Gbps bidirectional traffic on one fiber core, which matters when you're running fiber through old conduit or limited underground ducts.

Technical Highlights:

• 1330nm Rx / 1270nm Tx wavelength architecture: WDM separation allows a single fiber to carry traffic in both directions without optical collision. Compare that to older systems where you'd need two fiber strands or a separate return path. One strand doing the work of two is a real cost multiplier when you're trenching or pulling through conduit.
• 10 km maximum distance on single-mode fiber: Long-haul backbone capability without repeaters or regenerators. If your remote camera site is 5–8 km from your data center, this transceiver is how you get there without active regeneration gear in between. That's operational simplicity and fewer points of failure in the middle.
• DDM (Digital Diagnostics Monitoring) with <1.3W power draw: Every managed switch I've deployed with DDM-enabled transceivers has caught degraded fiber connections before they went dark. RX power trending over days shows you when a connector is starting to degrade or a splice is aging. Combined with sub-1.3W consumption, you're not burning extra cooling in a crowded network closet either.

Deployment Considerations:

• This is a single-mode optic—multimode fiber will not couple correctly, and you'll either get no link or catastrophic signal loss. Every site visit I've made where the fiber was already in place requires a fiber type verification before you buy the transceiver. One wrong call here costs a day of troubleshooting.
• The SFP-10G-BX10-D must be paired with SFP-10G-BX10-U at the far end. Using two D units or two U units will create zero link. This is a hard requirement, not a preference. Document both endpoints in your network diagram so the next person on the job doesn't waste time wondering why the link isn't up.

For remote warehouse yards, distributed school networks, or any multi-building campus where NVR bandwidth and latency matter, the SFP-10G-BX10-D is the right transceiver. It handles the distance and the throughput without extra equipment, and DDM diagnostics mean you'll see aging fiber before it becomes an incident.