Optical connectivity · B2B sourcing
Source 10G SFP+, 25G SFP28, 40G QSFP+ and 100G QSFP28 optical transceivers, with active optical cables and direct-attach copper cable options for compatible network equipment.
TUOLAN TRADE coordinates specification review and supplier quotations. Share the equipment at both ends, link standard, distance and quantity so the proposed part can be checked against your application.
Select by interface and application
A matching physical port is only the first check. The host must support the module’s rate, optical link standard, electrical interface, firmware requirements and operating conditions.
10 Gigabit Ethernet
Short-reach, long-reach and extended-reach directions for access, enterprise and data-center links. The reference range also includes single-fiber BiDi and CWDM/DWDM variants.
Specify: SR/LR or exact variant, duplex versus single fiber, wavelength pair, distance, temperature grade and host equipment.
25 Gigabit Ethernet
A single-lane 25G electrical interface for compatible server and switch ports. The supplier catalog includes SR, LR, ER, BiDi and wavelength-multiplexing directions.
Specify: the exact 25G part, fiber grade, FEC requirements, link budget and host support. Do not treat a 25G SFP28 module as a 100G module.
40 Gigabit Ethernet
Parallel-fiber SR4 and single-mode wavelength-multiplexed directions use different optical connections. QSFP+ electrical lanes do not make every optical variant suitable for breakout.
Specify: SR4/LR4 or exact variant, MPO versus duplex LC, fiber arrangement and any required breakout mode.
100 Gigabit Ethernet
The brochure lists SR4, CWDM4, PSM4, LR4 and extended-reach directions. Optical lane arrangement, receiver requirements and supported reach differ between variants.
Specify: the exact interface standard, connector, fiber, FEC/host conditions, power budget and acceptance test.
Manufacturer brochure examples
The rows below transcribe selected entries from the supplier’s 2023 brochure (printed pages 01–04). They are starting points for an RFQ, not TUOLAN test results or guaranteed limits. Request a current, revision-controlled datasheet before choosing a part.
| Reference model | Rate / package | Listed reach | Optical connector | Listed Tx source | Tx power | Rx sensitivity |
|---|---|---|---|---|---|---|
| BT-SFP+-SR | 10G / SFP+ | 300 m | Duplex LC | 850 nm VCSEL | −6 to −1 | ≤ −11.1 |
| BT-SFP+-LR | 10G / SFP+ | 10 km | Duplex LC | 1310 nm DFB | −6 to −1 | ≤ −12.6 |
| BT-SFP28-LR | 25G / SFP28 | 10 km | Confirm current datasheet | 1310 nm DFB | −3.8 to 3.0 | ≤ −13.0 |
| BT-SFP28-ER | 25G / SFP28 | 40 km | Confirm current datasheet | 1310 nm EML | −3.0 to 6.0 | ≤ −19.0 |
| BT-QSFP-SR4 | 40G / QSFP+ | 100 m | MPO-12 | 850 nm VCSEL | −7.6 to 2.4 | ≤ −11.1 |
| BT-QSFP-LR4 | 40G / QSFP+ | 10 km | Duplex LC | CWDM DFB | −7.0 to 2.3 | ≤ −11.5 |
| BT-QSFP28-SR4 | 100G / QSFP28 | 100 m | MPO-12 | 850 nm VCSEL | −8.4 to 2.4 | ≤ −9.2 |
| BT-QSFP28-LR4 | 100G / QSFP28 | 10 km | Duplex LC | 1294–1310 nm LWDM DML, as listed | −4.3 to 4.5 | ≤ −8.6 |
Short-reach figures depend on the multimode fiber grade and test conditions. Long-reach designs require a complete link budget, including connector/splice losses and receiver overload limits. The brochure does not fully specify measurement conditions or whether every multi-lane power figure is per lane; those details must be resolved in the current datasheet.
Complete interconnect assemblies
AOC carries the link over optical fiber with integrated electronics at both ends. DAC uses copper conductors. Neither should be confused with a separate optical transceiver plus a detachable fiber patch cord.
The brochure lists SFP+, SFP28, QSFP+ and QSFP28 assemblies, including 40G-to-4×10G and 100G-to-4×25G breakout directions. Confirm both host endpoints, the required length, breakout support, routing and bend requirements.
The AOC length table and general description disagree. Length capability is therefore left to the selected model’s current datasheet and quotation; a blanket 300 m capability is not advertised.
The brochure lists 10G, 25G, 40G and 100G direct links and breakout assemblies, with a reference length range of 0.5–7 m. This is a catalog range, not a guarantee that every host, gauge and rate supports every length.
Specify active versus passive construction where applicable, cable gauge, connector coding, equipment at both ends, power limits and the exact length.
| Connection direction | Cable families in the brochure | Before ordering |
|---|---|---|
| 10G SFP+ ↔ SFP+ | AOC / DAC | Host coding, cable length and supported rate |
| 25G SFP28 ↔ SFP28 | AOC / DAC | Host support, FEC setting and length |
| 40G QSFP+ ↔ QSFP+ | AOC / DAC | Native 40G mode and equipment compatibility |
| 40G QSFP+ ↔ 4×10G SFP+ | Breakout AOC / DAC | Switch breakout support and branch mapping |
| 100G QSFP28 ↔ QSFP28 | AOC / DAC, brochure-listed | Current model availability, FEC, coding and length |
| 100G QSFP28 ↔ 4×25G SFP28 | Breakout AOC / DAC, brochure-listed | Supported breakout configuration at all endpoints |
Additional application-specific directions
The broader brochure also covers 16G/32G Fibre Channel, 155M–2.67G SFP, CSFP, EPON/GPON and legacy XFP, X2/XENPAK and 1×9 modules. These are separate protocol or equipment categories, not interchangeable Ethernet upgrades.
Prepare a comparable quotation
Both-end manufacturer, switch/server model, software version, port rate, form factor, exact optical standard or reference part, fiber type, connector, wavelength and link distance.
FEC and breakout mode, operating temperature, power limit, DOM/DDM needs, loss budget, compatibility evidence and required optical/electrical test results.
Sample and batch quantities, destination, target date, labeling, packing, warranty expectations, traceability and market-specific compliance documents.
Send your reference datasheet or part number with the requirements above. Facility visits and supplier audits can be coordinated by appointment after the selected supplier, access and scope are confirmed.
They are important high-speed optical communications developments, but this brochure does not establish an 800G or 1.6T supply catalog. We do not list them here as stocked, qualified or deliverable BTON products. Read our separate 1.6T optical communications industry update for technology context.
For coated fiber, ribbon and compact cable constructions, return to Fiber Optics & Modules. Product-specific procurement questions can be sent to sales@tuolango.com.
Prepared from the manufacturer’s 2023 Chinese brochure supplied to TUOLAN and publicly available technical references, reviewed September 9, 2026. Reference model names remain the manufacturer’s identifiers; they do not imply TUOLAN manufacture, authorized-distributor status, independent testing or confirmed stock.
The current signed-off datasheet, compatibility confirmation and quotation take precedence over historical brochure summaries. Ask for the relevant test conditions and acceptance limits before ordering.
