10G SFP+ CWDM Optical Transceiver Module
Product Overview
The Apex 10G SFP+ CWDM module puts a 10 Gigabit service on one coarse wavelength division multiplexing channel, so many 10G links can share a single fiber pair through passive multiplexers. It covers the 18 channel ITU grid from 1271nm to 1611nm at 20nm spacing, and each module is ordered in one fixed channel.
CWDM is the lower cost way to add 10G capacity to a cable that is already full. The optics use uncooled lasers and do not need the temperature control, channel spacing or inline amplifiers that DWDM designs use, so both the transceivers and the passive mux/demux parts cost less, and a 10G CWDM channel reaches 40km to 80km on standard single mode fiber.
Typical deployments are metro and access transport, cable and utility networks, and enterprise links between two sites where several 10G services have to ride the same cable. The passive mux/demux, OADM modules and patch cords are supplied alongside the transceivers so the channel plan and connectors match at both ends of the route.
Key Features
- 9.95Gbps to 10.3Gbps line rate for 10GBASE-CWDM applications
- 18 CWDM channels, 1271nm to 1611nm on the ITU 20nm grid
- Reach up to 40km and 80km over single mode fiber
- Uncooled DFB transmitter, low power consumption
- Duplex LC interface, fixed channel per module
- Digital Diagnostic Monitoring (DDM/DOM) with live optical readings
- Operates with passive CWDM mux/demux and OADM modules
- Compliance with SFP+ MSA, ITU CWDM grid and RoHS
Technical Specifications
| Specification | Detail |
|---|
| Part Number | APX-SFP-10G-xxKM-CWDM-yy (xx = reach, yy = channel) |
| Manufacturer | Apex |
| Data Rate | 9.95Gbps to 10.3Gbps |
| Form Factor | SFP+, hot pluggable |
| Optical Technology | CWDM, single channel per module |
| Channel Plan | 18 channels, 1271nm to 1611nm, 20nm spacing |
| Reach | 40km and 80km over SMF |
| Fiber Type | Single Mode Fiber (SMF) |
| Connector Type | LC duplex |
| Transmitter | Uncooled DFB laser |
| DDM / DOM | Supported |
| Supply Voltage | 3.3V |
| Compliance | SFP+ MSA, ITU CWDM grid, RoHS |
| Temperature | 0 to 70C commercial, -40 to 85C industrial on request |
Ordering Options
Family options are listed below as plain text so they can be copied into an RFQ or a spreadsheet.
| Channel | Center wavelength | Channel | Center wavelength |
|---|
| 1271 | 1271nm | 1471 | 1471nm |
| 1291 | 1291nm | 1491 | 1491nm |
| 1311 | 1311nm | 1511 | 1511nm |
| 1331 | 1331nm | 1531 | 1531nm |
| 1351 | 1351nm | 1551 | 1551nm |
| 1371 | 1371nm | 1571 | 1571nm |
| 1391 | 1391nm | 1591 | 1591nm |
| 1411 | 1411nm | 1611 | 1611nm |
| 1431 | 1431nm | 1471 + 1491 | 8 channel upgrade path |
Applications
Metro 10G Capacity Growth
Adds 10G services to a full cable by putting each one on its own coarse channel instead of adding fiber or new duct.
Cable and Utility Networks
Carries 10G backhaul and monitoring traffic between headends, substations and cabinets on the existing single mode plant.
Enterprise and Campus Interconnect
Links campus buildings or a data centre to a metro point of presence at 10G, with passive muxes at each end to keep the fiber count down.
Compatibility
10G CWDM modules are coded for the switch, router or transport platform you name and tested on live ports before shipment. Because a CWDM link depends on the channel plan rather than on the module vendor, we ask for the channel list and the mux/demux part in use, then supply transceivers that fit the plan and certified patch cords to match.
Related Products
Frequently Asked Questions
How do I choose a CWDM channel for a 10G link?
Start from the channel plan already in use on the route so the new service lands on a free channel. Each module is fixed to one channel, and both ends of a link must use the same channel number.
Is CWDM or DWDM the better choice for 10G?
CWDM is cheaper and needs no amplifiers or temperature control, which suits 40km to 80km metro and access spans with 18 channels or fewer. DWDM fits longer spans and routes that need many more channels on the same fiber.
Do 10G CWDM links need an amplifier?
Not within the module reach of 40km to 80km. Amplifiers appear on longer DWDM routes; for CWDM the practical limit is set by the fiber span, the mux/demux loss and the module reach.
Can you supply the CWDM mux and patch cords?
Yes. We quote the transceivers, the passive mux/demux or OADM modules and the matching patch cords together so the channel plan and connectors line up on both ends.
Why Choose Apex
- Optical engineering support and supply from 1.25G to 800G, including CWDM and DWDM lines.
- Channel plan and existing mux hardware confirmed before the order is released.
- Every module is tested for optical power, wavelength and error rate before shipment.
- Backed by a 3 year warranty and technical support before and after the sale.
