What module should I pair with a 1490 optical fiber
A 1490nm BiDi SFP module should be paired with a complementary module that has the opposite transmit/receive wavelength, such as a 1550nm-RX/1490nm-TX or 1310nm-RX/1490nm-TX module, depending on your network setup.
BiDi Module Pairing
For bidirectional (BiDi) single-fiber SFP modules, each module transmits and receives on different wavelengths. If you have a module transmitting at 1490nm (TX) and receiving at 1550nm (RX), the module at the other end must transmit at 1550nm and receive at 1490nm to enable full-duplex communication over a single fiber . Similarly, for GPON or other specialized networks, a 1490nm-TX/1310nm-RX module must be paired with a 1310nm-TX/1490nm-RX module .
Examples of Compatible Pairings
- 1490nm-TX / 1550nm-RX → paired with 1550nm-TX / 1490nm-RX for 80–120 km single-mode fiber links .
- 1490nm-TX / 1310nm-RX → paired with 1310nm-TX / 1490nm-RX for GPON or 40 km single-mode fiber links .
Key Considerations
- Connector Type: Most BiDi SFPs use LC simplex connectors for single-mode fiber.
- Transmission Distance: Ensure the complementary module supports the required distance (e.g., 40 km, 80 km, or 120 km) for your network.
- Compatibility: Test modules with your switches, routers, or OLTs to ensure interoperability, as hardware and software configurations can affect performance .
- Hot-Swappable: BiDi SFPs are typically hot-pluggable, allowing replacement without powering down equipment .
- Monitoring: Many modules include DDM/DOM functionality to monitor optical power, temperature, and voltage for stable operation . By selecting the correct complementary wavelength module, you can achieve reliable, full-duplex communication over a single optical fiber while optimizing fiber usage and network efficiency.
How to Choose SFP Module for Compatibility, Speed, and Distance
Learn how to choose the right SFP module based on compatibility, speed, fiber type, wavelength, and distance.
Fiber Optic Cable Types Explained: Choosing the Right Fiber Cable
Fiber Optic Patch Cable Types and How to Choose the Right One? Fiber optic cables come in various types based on
Fiber to the test: PON''s installation challenges
For this reason, many fiber-optic test equipment manufacturers now offer 1490-nm testing functionality on their products developed
Cisco SFP and SFP+ Transceiver Module Installation Notes
This installation note provides the installation instructions for the Cisco small form-factor pluggable (SFP) and SFP+
Understanding Wavelengths In Fiber Optics
Plastic optical fiber (POF) is made from materials that have lower absorption at shorter wavelengths, so red light at 650 nm is
Cisco CWDM-SFP10G-1490-I Compatible SFP+ 10G CWDM 1490nm
Cisco CWDM-SFP10G-1490-I Compatible SFP+ transceiver supports up to 80km link lengths over single-mode fiber (SMF) and is
What Is an Optical Module and Its FAQs (V200)
Describes what an optical module is and FAQs, including the fundamentals, appearance and structure, key performance counters,
Optical FTTx 1310/1490/1550 nm WDM Module | AFL Global
AFL''s FTTx WDM Module is designed to satisfy requirements utilizing 1310, 1490 and 1550 nm bandwidths in FTTx applications. The
OFP2-200-S1490 INT | OFP HDR Singlemode OTDR with 1310 nm
FLUKE Networks OFP2-200-S1490-INT | OptiFiber Pro HDR Singlemode OTDR with 1310 nm, 1550 nm and 1490 nm module + WiFi
Cisco CWDM Passive Optical System Installation Note
The CWDM GBIC and CWDM SFP transceivers are hot-swappable input/output devices that link your switching module to the
Leaflet of 1490nm Wavelength Models
Anritsu will add 1490 nm wavelength models to the ACCESS MasterTM series. We will offer the additional solution for various optical
Multi-mode optical fiber
Multi-mode optical fiber is a type of optical fiber mostly used for communication over short distances, such as within a building or on a
CWDM Passive Optical System Installation Note
A CWDM GBIC is a hot-swappable input/output device that links your switching module to the CWDM passive optical
10G BiDi SFP+ 80km Tx1490/Rx1550
Pair it with the BIDI-10G-SFP-80B (Tx1550/Rx1490) at the far end of the same single fiber. The complementary
How to choose an optical fiber link and an SFP module?
What cables suit an SFP module? What distance can be there between SFP modules? And many other questions.
10G BIDI SFP+ 1490nm-TX/1550nm-RX 100km Transceiver
Description SFP-10G-BX100 series single mode transceiver is small form factor pluggable module for optical data communications
CertiFiber Pro Measuring Power at 1490nm and 1625nm Wavelengths
In the course of troubleshooting a fiber optic link, there may be times when it is necessary to measure the power
LYNX Technik OH-TT-4-1470-1490
The LYNX OH-TT-4-1270-1290-LC dual channel SDI optical transmitter is a CWDM fiber plug in option for select LYNX Technik
Is there a need for 1490 nm testing in PONs?
Is there a need for 1490 nm testing in PONs? Introduction Point-to-multipoint passive optical networks (PONs), such as Ethernet
5 Pair 1.25G BiDi SFP Fiber Transceiver Module, 1000BASE-BX-D
Product Description 1.25G BiDi SFP Transceiver Pair for Single-Mode Fiber Networks This BiDi SFP transceiver pair is
BiDi SFP: The Complete Guide to Bidirectional SFP Transceivers and
BiDi SFP (Bidirectional Small Form-Factor Pluggable) transceivers have emerged as a powerful solution, enabling full
SFP 1.25G Tx1310/Rx1490 10Km LC Transceiver
The module data link up to 10km in 9/125um Single-mode fiber. This sfp 1310 1490 transceiver meets the
Optical fiber connector
An optical fiber connector is a device used to link optical fibers, facilitating the efficient transmission of light signals. An optical fiber
SFP BiDi 1GE 1310nm/1490nm 10km 13dB I-temp LC
BiDi SFP form-factor with single LC connector Single-fiber operation 1310nm/1490nm & 1490nm/1310nm Support for 100Mbps to
Optical multiplexer module (WDM) 1310/1490
Passive device designed to multiplex/demultiplex two optical signals: one at 1310/1490 nm (GPON) and another at 1550 nm (RF
Cisco GLC-BX-D Compatible: 1490nm/1310nm WDM Principles
Correct fiber SFP module pairing is essential for the proper functioning of BiDi links. The Cisco GLC-BX-D is designed to work with
Single Fiber 10 km SFP Optical Transceiver: Zyxel...
Zyxel SFP-BX1490-10-D is SFP Single Fiber Transceiver supporting 1.063-1.25Gbps data rate in 10 km distance over Single-Mode
SFP-1100-WB SFP+ 10G BiDirectional Optical Module Single-Strand
The SFP-1100-WB is a BiDirectional single fiber strand 10G SFP+ optical module using Tx:1550nm and Rx:1490nm wavelengths and
Optical Transceiver Interoperability and Compatibility Guide
Countless compatible fiber optic transceivers have been employed in network deployments. However, there still exists
RFoG Wavelength Division Multiplexer WDM Module
The RFoG WDM module is designed to satisfy wavelength management requirements where 1310, 1490, 1550 and 1590 / 1610nm
1310/1490/1550nm Optical Coupler Fiber Optic Splitter/Combiner
Lfiber''s 1310/1490/1550nm optical coupler (fiber optic splitter/combiner) shows uniform performance across the three optical windows
Optical Transceiver Interoperability and Compatibility Guide
If a module is connected with OM1/OM2 fibers, while the other one is connected with OM3/OM4 fibers, then the
Is there a need for 1490 nm testing in PONs?
The most recurring question concerns the need for qualifying the fiber plant at 1490 nm, the wavelength used to transmit data from
Transceiver and Fiber Cable wavelength Mismatch, will they work
For me, when choose the optical transceivers and fiber optic patch cables for your infrastructure, you''d better ensure
SFP-GE-BX-1490-SLC-C Amphenol ProLabs | Fiber Optic Transceiver Modules
Buy now, ships today. SFP-GE-BX-1490-SLC-C - Transceiver Module 1490nm, 1310nm LC Pluggable, SFP from Amphenol ProLabs.
LYNX Technik OH-TT-8-1470-1490 Dual Channel Fiber Optic 3G
The LYNX Technik OH-TT-8-1470-1490 dual channel SDI optical transmitter is a CWDM fiber plug in option for select LYNX Technik