The published 8-channel insertion loss gives engineering teams a concrete module loss to include before the order is approved. That helps a buyer compare the proposed CWDM multiplexer against the available transceiver budget instead of relying on a vague "low-loss" description.
FB-LINK 8CH CWDM Dual-fiber Mux/Demux 1270–1410nm
Designed for buyers who need a defined eight-channel wavelength plan, this passive CWDM module combines a 1270–1410nm configuration, LC/UPC connectivity and a compact ABS box with ≤2.5dB insertion loss for the 8-channel device. It gives network engineers and sourcing teams the core numbers they need to check wavelength compatibility, optical budget and installation space before ordering.
- Product Introduction
8CH CWDM Dual-fiber Mux/Demux Specifications for Network Procurement
The table keeps the published optical parameters in one place so technical and purchasing teams can review the same baseline before an RFQ is released.
| Product configuration | 8CH CWDM dual-fiber Mux/Demux |
|---|---|
| Configured wavelength range | 1270–1410nm |
| Published CWDM channel wavelength range | 1270–1610nm |
| Center wavelength accuracy | ±0.5nm |
| Channel spacing | 20nm |
| Channel passband at −0.5dB | >13nm |
| 8-channel insertion loss | ≤2.5dB |
| 8-channel uniformity | ≤1.0dB |
| Channel ripple | 0.3dB |
| Demux adjacent-channel isolation | >30dB |
| Demux non-adjacent isolation | >40dB |
| Insertion-loss temperature sensitivity | <0.005dB/°C |
| Wavelength temperature shift | <0.002nm/°C |
| Polarization dependent loss | <0.1dB |
| Polarization mode dispersion | <0.1 |
| Directivity | >50dB |
| Return loss | >45dB |
| Maximum power handling | 300mW |
| Operating temperature | −5°C to +75°C |
| Storage temperature | −40°C to +85°C |
| Connector | LC/UPC |
| Housing | ABS box module |
| Package dimension for 2CH–8CH devices | L100 × W80 × H10mm |
The source specification states that its listed optical values are based on devices without connectors and are guaranteed over wavelength, polarization and temperature. Use the actual connector and fiber path when you calculate the final system power budget.
Get an 8CH CWDM Mux/Demux Quote Matched to Your Project
Send the wavelength plan, target quantity, connector requirement and delivery destination. FB-LINK can then quote against a defined sourcing request instead of a generic product inquiry.
Why Buyers Choose This 8-Channel CWDM Mux/Demux for Fiber Expansion
The value is not the channel count by itself. The purchasing case comes from knowing how the optical loss, channel separation and compact format affect the network design you need to approve. If the project's channel count or transmission distance requirements are still open, this CWDM vs DWDM comparison guide lays out when 8-channel CWDM is the right fit and when DWDM makes more sense.
≤2.5dB
A defined loss figure for link-budget review
>30 / >40dB
Isolation figures that can be checked during technical evaluation
Demux adjacent isolation is specified above 30dB and non-adjacent isolation above 40dB. These numbers give the technical team measurable criteria when they compare an 8CH CWDM Mux/Demux supplier proposal.
100 × 80 × 10mm
A compact module size that can be checked before installation
The ABS box dimension published for 2CH–8CH devices lets the project team verify available installation space before shipment. That reduces the risk of approving the optics and discovering a mechanical fit problem later.
Low-Loss CWDM Multiplexer Performance for Link Budget Planning
For network engineers, the 20nm channel spacing and ±0.5nm center-wavelength accuracy define the wavelength side of the design, while the loss and return-performance figures define how the passive module contributes to the optical path.
For sourcing managers, this means the RFQ can be tied to measurable acceptance points: 8-channel insertion loss ≤2.5dB, channel uniformity ≤1.0dB, channel ripple 0.3dB, return loss >45dB and directivity >50dB. Those are more useful during supplier comparison than adding more marketing adjectives to the product name. For the full calculation that turns these module numbers into a pass/fail system power budget, see this optical link budget calculation guide.
Four checks before you shortlist the module
- Map each required service to the intended CWDM wavelength.
- Add module, connector and fiber losses to the total power budget.
- Verify that every interface in the planned path is compatible with LC/UPC.
- Check the −5°C to +75°C operating range against the real installation environment.
Dual-Fiber CWDM Mux/Demux Deployment for Metro and Campus Networks
The source product page positions CWDM for metropolitan access, central-office links, enterprise campus interconnection, data-center consolidation and storage-area-network traffic. The decision point is whether the project's wavelength plan and optical budget match this specific eight-channel configuration.
Original-page dual-fiber topology illustration. The diagram shows the architecture concept; this product is the 8-channel 1270–1410nm configuration.
Metro and central-office links
Use this configuration when eight CWDM channels and the 1270–1410nm plan match the optical design. The compact ABS format can be considered where a small passive module is preferred over a larger chassis.
Campus and data-center interconnection
For building-to-building or data-center links, validate the channel assignment and end-to-end loss first. The module should be selected because it matches the network plan, not simply because "8CH CWDM" appears in a search result. For a worked example of when reusing existing fiber with a CWDM/DWDM mux pair beats trenching new cable, see this campus network fiber connectivity guide.
Bulk Order 8CH CWDM Mux/Demux Requirements Buyers Should Confirm
The original product page does not publish MOQ, production lead time, carton quantity or product-specific certificate numbers. Those items should stay in the RFQ instead of being filled with assumptions.
Send a usable RFQ, not just "price please"
A stronger quotation request gives the supplier enough context to confirm the exact configuration and commercial terms. This also makes competing quotes easier to compare internally.
FB-LINK states on the product page that inquiries are contacted within 24 hours. That is an inquiry-response statement, not a manufacturing or shipping lead-time promise.
Wavelength plan
Confirm 1270–1410nm or state the required alternative.
Architecture
Confirm dual-fiber operation for the intended link.
Connector
State LC/UPC and any interface constraints in the path.
Target quantity
Provide sample, pilot and expected project quantities if known.
Delivery destination
Needed for shipping and landed-cost planning.
Required documents
List any compliance or customer-approval documents you need.
Packaging data
Ask for units per carton, carton size and gross weight.
Required schedule
Ask for production completion and dispatch dates separately.
Source the FB-LINK 8CH CWDM Dual-fiber Mux/Demux with a Matched Specification
If your project already has a wavelength plan and target quantity, send both now. That gives the FB-LINK CWDM Mux/Demux sales team a clearer basis for quotation and reduces back-and-forth before technical approval.
Temperature-Stable CWDM Mux/Demux Performance for Controlled Network Design
Insertion-loss temperature sensitivity is specified below 0.005dB/°C and wavelength temperature shift below 0.002nm/°C. Polarization dependent loss is below 0.1dB, while the product specification lists a −5°C to +75°C operating range and −40°C to +85°C storage range.
These values matter because they let the buyer compare the module against the actual deployment environment. They are stronger decision inputs than generic statements such as "high quality" or "stable performance" without a measurable basis.
Published optical checkpoints
- Center wavelength accuracy ±0.5nm
- Channel passband >13nm at −0.5dB
- Polarization dependent loss <0.1dB
- Polarization mode dispersion <0.1
- Maximum power handling 300mW
- Storage temperature −40°C to +85°C
FB-LINK CWDM Mux/Demux Supply for OEM and Project Sourcing
FB-LINK presents itself on its CWDM product category as a passive CWDM Mux/Demux manufacturer and offers OEM/ODM support. For this product page, the useful buying step is still to match the requested configuration to the published product data before commercial terms are accepted.
Quote from an exact configuration
Reference the 8CH CWDM Dual-fiber Mux/Demux, 1270–1410nm wavelength plan, LC/UPC connection and ABS box format in the RFQ so the supplier response is tied to the product you reviewed.
Separate published data from quote-stage terms
Optical specifications are published on the product page. MOQ, production lead time, carton details and product-specific certification documents should be confirmed separately and recorded in the quotation.
Make supplier comparison easier
Use the same technical and commercial checklist for every 8-channel CWDM supplier you evaluate. That keeps the decision focused on fit, verified performance and order terms rather than keyword-heavy sales copy.
8CH CWDM Dual-fiber Mux/Demux Procurement FAQs
What wavelength plan does this 8-channel CWDM module use?
This product listing is the 1270–1410nm 8CH configuration. The CWDM specification family uses 20nm channel spacing, so verify that the project optics are assigned to the intended wavelengths before purchase.
What insertion-loss figure should our engineer use?
The published 8-channel insertion loss is ≤2.5dB. The source also notes that listed specifications are based on devices without connectors, so the final network calculation should include the real connector and fiber path rather than treating the module figure as the entire link loss.
Which connector and enclosure are specified?
The product title specifies LC/UPC and an ABS box module. The published package dimension for 2CH–8CH devices is 100 × 80 × 10mm, which gives the installation team a physical size to check before the order is released.
Can FB-LINK quote this CWDM Mux/Demux for a bulk project?
Yes, the site provides a direct inquiry path for the product, and FB-LINK identifies itself as a CWDM Mux/Demux manufacturer on its category page. Send the required quantity, wavelength plan, destination and required documents so the commercial response can be tied to a defined project request.
Are MOQ and production lead time published for this product?
No MOQ or production lead time is stated on the product page. Ask FB-LINK to confirm the minimum order, production completion date and dispatch date in the quotation rather than inferring them from the stated 24-hour inquiry-response time.
Which certifications apply to this exact 8CH CWDM Mux/Demux?
The designated product page does not list product-specific certificate names or certificate numbers. If your tender or customer approval requires compliance documents, include the exact document requirement in the RFQ and verify what applies to this configuration before publishing the claim.
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