• cisco compatible MGBBX1 bidi sfp transceiver tx1310rx1490 20km
  • MGBBX1 bidi sfp transceiver 20km ddm cisco compatible tx1310rx1490
  • bidirectional sfp module cisco compatible tx1310rx1490nm 20km ddm
  • Cisco MGBBX1 Compatible BiDi SFP Transceiver | 1000BASE-BX20-U 20km SMF Factory Wholesale  | HYTOPTODEVICE
  • cisco compatible bidi sfp transceiver module 20km smf ddm
  • cisco compatible MGBBX1 bidi sfp transceiver tx1310rx1490 20km
  • MGBBX1 bidi sfp transceiver 20km ddm cisco compatible tx1310rx1490
  • bidirectional sfp module cisco compatible tx1310rx1490nm 20km ddm
  • Cisco MGBBX1 Compatible BiDi SFP Transceiver | 1000BASE-BX20-U 20km SMF Factory Wholesale  | HYTOPTODEVICE
  • cisco compatible bidi sfp transceiver module 20km smf ddm

Cisco MGBBX1 Compatible BiDi SFP Transceiver | 1000BASE-BX20-U 20km SMF Factory Wholesale | HYTOPTODEVICE

HYTOPTODEVICE Cisco MGBBX1 compatible BiDi SFP transceiver features 1000BASE-BX20-U, Tx1310nm/Rx1490nm, 20km SMF simplex LC connection. Fully tested for real Cisco devices, 100% plug-and-play compliance. Ideal for switch-to-switch, media converter, and cable manager network connectivity. 5-year warranty, DOM supported, factory low price.
NO. Brand  Compatible P/N Remarks
1 Cisco MGBBX1 
2 Alcatel-Lucent SFP-GIG-BX-U20 
3 H3C  SFP-GE-PX20-U-SM1310-A
4 Juniper  SFP-GE20KT13R14
5 HPE Procurve  J9143B-20 
6 Brocade E1MG-BXU-20
7 Cisco GLC-BX-20U
Description
Cisco MGBBX1 Compatible 1000BASE-BX20-U BiDi SFP Transceiver 20km(SMF, 1310nm-TX/1490nm-RX, Simplex LC, DOM)

Product Overview

The HYTOPTODEVICE Cisco MGBBX1 compatible BiDi SFP transceiver is a hot-pluggable gigabit single-fiber bidirectional optical module for cost-effective enterprise networking. Adopting mature WDM technology, it supports 20km transmission over standard single-mode fiber with Tx1310nm/Rx1490nm wavelength pairing and simplex LC interface, helping businesses save half of their fiber cabling resources.This bi-directional module must be used with another transceiver or network equipment of complementary wavelength. ideal for Fast Ethernet, Telecom and Data Centers.

Key Technical Specifications

Below are the professional parameters of the HYTOPTODEVICE 1000BASE-BX20-U BiDi SFP transceiver. All specifications follow MSA and IEEE standards to ensure stable 20km SMF transmission, standard wavelength performance and reliable DDM monitoring for Cisco enterprise network deployment.
Cisco  Compatible

MGBBX1

Vendor Name HYTOPTODEVICE
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength TX1310nm/RX1490nm Max Distance 20km 
Connector Simplex LC Transmitter Type 1310nm FP
Cable Type SMF Receiver Type PIN
TX Power -9.0~-3dBm Receiver Sensitivity < -23.0dBm
Protocols SFF-8472 MSA Compliant, IEEE 802.3ah-2004 Operation Temperature 0 to 70°C (32 to 158°F)

Usage Guidelines & Operational Best Practices

Follow standardized operation rules to extend service life and maintain steady link performance of your BiDi SFP Transceiver:

  1. Complementary Pairing Requirement Bidirectional transceivers must be deployed in matched wavelength pairs. This TX1310/RX1490 BiDi SFP Module requires a counterparty TX1490/RX1310 transceiver at the opposite fiber end; mismatched wavelength pairs cannot establish valid fiber links.
  2. Fiber Type Restriction Only use standard 9/125μm single mode fiber (SMF) with LC/UPC patch cords. This transceiver cannot operate normally on multi-mode fiber (MMF), which triggers severe attenuation and persistent random bit errors.
  3. Distance & Attenuation Control Optimized for stable 10km single-fiber links. For lab testing or field deployment under 5km, an external optical attenuator is mandatory to prevent receiver overpowering, signal saturation and permanent internal optical chip damage.
  4. Optical Port Dust Protection LC optical ports and fiber end faces are highly sensitive to dust and fingerprint contamination. Always reinstall protective dust caps on idle module ports and unused fiber connectors after disconnection.
  5. Hot-Plugging Operation Guidance This MSA-compliant BiDi SFP Transceiver supports safe hot swap. Leave several seconds between removal and reinsertion to let Cisco IOS complete full hardware recognition and avoid unexpected link flapping.

Full Compatibility List & Supported Devices

1. Verified Cisco Device Compatible Models
This Cisco-compatible BiDi SFP passes strict real-device verification to ensure plug-and-play operation. It runs smoothly on original Cisco firmware without IOS error logs, configuration adjustments or firmware updates. Verified compatible devices are listed below:
Catalyst Switches: 2960, 3560, 3750, 3850, 9200, 9300 Series
Cisco Routers: ISR 1900, 2900, 3900 Series
Other Devices: Cisco Linksys Enterprise Switches

2. Multi-Brand Compatibility

Thanks to universal MSA standard design, this 1000BASE-BX20-U simplex LC SFP works with most mainstream third-party network devices, covering switches, media converters and cable management systems from H3C, HP, Juniper, D-Link and TP-Link.
We provide real-device test videos for bulk orders to confirm stable compatibility and link performance.

Common Application Scenarios 

This single-fiber BiDi SFP provides a reliable, budget-friendly solution for enterprise and industrial networking, effectively solving fiber resource shortages in various network upgrade projects.
  • Campus building-to-building fiber interconnection
  • Media converter gigabit uplink transmission
  • Data center cable manager integrated wiring
  • Enterprise FTTB private network access
  • Long-distance IP surveillance transmission
  • Single-fiber cost-saving data center networking

Connectivity Solutions( Applications)

 1. Switch to Switch BiDi Fiber Connection

 Pairing MGBBX1 and MGBBX1D modules creates stable single-fiber links between two Cisco switches, optimizing fiber usage for campus and enterprise core networks:
Cisco switch to switch single fiber BiDi SFP link diagram with MGBBX1 transceiver 20km SMF2. Switch to Media Converter Link Connection
It delivers stable gigabit uplinks between switches and media converters, extending network transmission distance for remote offices, industrial parks and branch network expansion.
Gigabit switch to media converter uplink connection using Cisco MGBBX1 compatible BiDi SFP
3. Switch Link with Cable Manager Integrated Wiring
Combined with standard cable manager systems, it supports neat, standardized cabinet wiring, reducing line chaos and simplifying daily maintenance and future network upgrades.

Data center cable manager integrated wiring solution with Cisco MGBBX1 BiDi SFP transceiver
Core Product Features

1.Boost Existing Fiber Utilization Using BiDi SFP
Standard dual-fiber optics rely on two cores for two-way communication. Our BiDi SFP leverages WDM tech to achieve bidirectional transmission over a single fiber. It optimizes idle fiber resource utilization, raises fiber operational efficiency, and avoids extra cable deployment during network expansion.
hytoptodevice bidi sfp transceiver module 1.25g smf

2. Double Your Network Capacity

Powered by single-strand bidirectional transmission technology, our premium BiDi SFP Module instantly doubles your network link capacity with no extra fiber cabling required.
Delivering a budget-friendly, high-performance bandwidth expansion solution, it perfectly caters to enterprise network upgrades and FTTx access network optimization projects.

3. Stable 1G Connectivity for High-Availability Data Centers

Even as data centers roll out 100G/400G networks, reliable 1G base infrastructure keeps daily operations running smoothly. Our enterprise 1G BiDi SFP modules deliver consistent low-latency performance. Ideal for OOB management and real-time monitoring, they maintain stable control channels fully separated from fluctuating production traffic.
hytoptodevice 1g bidi sfp module data center

4. Rigorous Host Device Testing for Full Cross-Brand Interoperability

Each BiDi SFP transceiver undergoes full interoperability testing on Cisco, Huawei, H3C and mainstream network equipment. Real-environment checks cover link handshake, DDM data accuracy and hot-swap performance to deliver flawless compatibility and avoid on-site deployment failures.
hytoptodevice cisco compatible bidi sc module

5.Comprehensive Factory Testing Delivers Consistent Stable Performance

Each BiDi SFP Module pass complete factory performance tests covering optical indicators, DDM monitoring and temperature adaptability. Layered quality checks guarantee reliable, stable long-run operation and reduce on-site troubleshooting costs.

high-performance bidi sfp module testing for global importers and distributors


FAQ

Q1: Are 20km 1000BASE-BX20-U simplex LC BiDi SFPs fully compatible with Cisco Catalyst 3650 switches?

A: Yes. HYTOPTODEVICE 20km 1000BASE-BX20-U simplex LC BiDi SFP modules have passed real-machine testing on Cisco Catalyst 3650 switches. It supports normal identification, DOM real-time monitoring and stable data transmission, no error log alarms, fully meeting daily enterprise network operation requirements.

Q2: Can Cisco MGBBX1 compatible Tx1310nm/Rx1490nm transceivers work with third-party BiDi modules?

A: Definitely yes. Our Tx1310nm/Rx1490nm MGBBX1 equivalent BiDi SFP adopts standard MSA wavelength parameters. It can be perfectly paired with standard 1490/1310 downlink BiDi modules of other brands to complete single-fiber bidirectional links with stable and non-interfering signals.

Q3: Do low-cost Cisco MGBBX1 replacement SFPs support DDM real-time optical power monitoring?

A: All HYTOPTODEVICE low-cost Cisco MGBBX1 replacement BiDi SFP transceivers support complete DDM/DOM monitoring functions compliant with SFF-8472 standard. Users can real-time view laser temperature, working voltage, transmit and receive optical power data through Cisco IOS system.

Q4: Is single fiber BiDi SFP for Cisco switch-to-switch long-distance connection stable for 24/7 operation?

A: Our single fiber BiDi SFP modules for Cisco inter-switch links adopt industrial-grade DFB lasers and high-sensitivity receiving chips. After 72-hour continuous aging testing, they support 24/7 long-term stable operation, no packet loss and no disconnection, suitable for core network long-time working scenarios.

Q5: Can Cisco MGBBX1 compatible modules be used for media converter gigabit uplink networking?

A: Fully applicable. This MGBBX1 compatible BiDi SFP is perfectly matched with mainstream gigabit media converters on the market. It can realize long-distance fiber extension of media converters, solve the limitation of network cable transmission distance, and is widely used in factory and park network expansion.

Q6: Are commercial grade 0~70℃ MGBBX1 BiDi SFPs suitable for indoor computer room wiring?

A: Absolutely suitable. The working temperature range of 0℃ to 70℃ is fully adapted to the constant temperature environment of standard indoor computer rooms. The module has good thermal stability, which can effectively avoid network fluctuation caused by temperature change and ensure the stability of computer room wiring links.

Q7: How to match MGBBX1 and MGBBX1D BiDi transceivers for single fiber link deployment?

A: For a complete single-fiber bidirectional link, you only need to use one MGBBX1 (Tx1310nm/Rx1490nm) module and one MGBBX1D (Tx1490nm/Rx1310nm) module in pairs. The wavelength pairing is completely matched, which can realize zero-delay bidirectional data transmission and is the standard deployment solution for single fiber networking.

Q8: Do HYTOPTODEVICE Cisco compatible BiDi SFPs come with after-sales warranty and technical support?

A: We provide 3-year official limited warranty and lifelong free technical support for all Cisco MGBBX1 compatible BiDi SFP transceivers. For any compatibility problems, link failures and pairing confusion, our professional engineering team provides 24/7 remote guidance and after-sales solutions.

Q9: Can MGBBX1 equivalent BiDi SFP modules reduce enterprise fiber cabling costs effectively?

A: Yes. Different from traditional dual-fiber SFP modules, our MGBBX1 BiDi transceiver only uses a single fiber strand for bidirectional transmission, which can save 50% fiber cable resources, greatly reducing enterprise cabling procurement, construction and later maintenance costs, with high cost performance.

Q10: Are IEEE standard compliant MGBBX1 BiDi SFPs compatible with Cisco IOS latest firmware?

A: All HYTOPTODEVICE MGBBX1 BiDi SFP transceivers comply with IEEE 802.3z and MSA industry standards. After real-machine testing, they are perfectly compatible with the latest versions of Cisco IOS firmware, without compatibility bugs, identification failures or system alarm problems.

Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.

  • 100% hardware-tested compatibility with Cisco, Huawei,Dell,Juniper, and Arista
  • ISO 9001:2015 certified manufacturing facility in Shenzhen
  • Full product range coverage:1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T
  • In-stock supply & fast global shipping, average lead time of 3–5 business days with DHL/FedEx express options
  • Dedicated pre-sales engineering support for custom configurations
  • Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy. 
  • We can provide inspection and shipping videos to make you feel as if you are right here with the product.
  • Private Label support - EEPROM / firmware customization support

“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia

Quality Certification & Compliance

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

  • ISO 9001: Certified quality management and production consistency.

  • CE & FCC: Fully compliant for seamless Global Market Access.

  • RoHS: Committed to environmental responsibility and hazardous material control.

  • Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.

Certified Quality. Global Standards. Guaranteed Performance.




Rigorous Industrial Product Testing

   

100% 3rd Party Compatible

Partial Test Demonstration

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  • cisco compatible MGBBX1 bidi sfp transceiver tx1310rx1490 20km
  • MGBBX1 bidi sfp transceiver 20km ddm cisco compatible tx1310rx1490
  • bidirectional sfp module cisco compatible tx1310rx1490nm 20km ddm
  • Cisco MGBBX1 Compatible BiDi SFP Transceiver | 1000BASE-BX20-U 20km SMF Factory Wholesale  | HYTOPTODEVICE
  • cisco compatible bidi sfp transceiver module 20km smf ddm

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