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cisco glc-bx120-u compatible 1000base-bx120-u sfp bidi 1490nm-tx 1550nm-rx 120km simplex lc smf transceiver module
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Cisco GLC-BX120-U Compatible 1000BASE-BX120-U SFP BiDi 1490nm-TX/1550nm-RX 120km Simplex LC SMF Transceiver Module

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Product summary

Product
Cisco GLC-BX120-U Compatible 1000BASE-BX120-U SFP BiDi 1490nm-TX/1550nm-RX 120km Simplex LC SMF Transceiver Module
SKU
235391
P/N
LS-BL49551G-A2C
Price
£ 21.75
Stock
419 in Stock
Sold
914
For Order Over £ 750.00 Get £ 11.25 Off , Code: Linkpp15
For Order Over £ 2,250.00 Get £ 37.50 Off , Code: Linkpp50
For Order Over £ 3,750.00 Get £ 75.00 Off , Code: Linkpp100
New Users: £ 7.50 Coupon on Your First Order , Code: linkpp2610
17 Reviews
5 Questions
914 Sold
Shipping:
£ 17.52
to United Kingdom via FedEx IP
Estimated delivery time : 3 - 6 days.
5-Year Warranty 15-Day Returns 15-Day Exchange
Warranty
  • Providing industry-leading 5-year warranty.
  • Read the table for details of all products' warranty.
Returns & Exchange
  • Refunds will be received about 5 business days after the receipt of returned items.
  • Items in stock for replacement can be shipped within 1 business day.
  • Read the full return policy for details.
Stock:
419 in Stock .
Quantity:
Total Price:
21.75

Cisco GLC-BX120-U Compatible LINK-PP 1G BiDi SFP Specifications

The Cisco GLC-BX120-U Compatible LINK-PP module is a high-performance 1G BiDi SFP optical transceiver designed for exceptional long-reach networking. This robust module features an advanced 1490nm DFB laser transmitter alongside a sensitive 1550nm APD receiver. Engineered for standard commercial operating temperatures, it guarantees seamless gigabit ethernet integration across extensive telecommunication enterprise networks demanding extreme distance coverage.

Cisco Part NumberGLC-BX120-UVendor NameLINK-PP
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1490nm-TX/1550nm-RX Max Cable Distance 120km
Connector Simplex LC Media SMF
Transmitter Type
DFB Receiver Type
APD
TX Power 0 to +5dBm RX Power -28 to -1dBm
Receiver Sensitivity <-32dBm DOM Support Yes
Operating Temperature Range 0 to 70°C Protocols

Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

Key Features of Cisco GLC-BX120-U Compatible LINK-PP 1G BiDi SFP

Discover the premium attributes of the Cisco GLC-BX120-U Compatible LINK-PP 1G BiDi SFP. This remarkable transceiver delivers uncompromising stability and efficiency. By integrating bidirectional wdm technology into a compact hot-pluggable form factor, this solution maximizes existing fiber infrastructure while ensuring ultra-reliable long-haul data communication.

Cisco GLC-BX120-U Compatible LINK-PP 1G BiDi SFP Optical Module

Engineered to MSA standards, the Cisco GLC-BX120-U Compatible LINK-PP 1G BiDi SFP optical module provides outstanding gigabit ethernet connectivity. This dependable transceiver enables highly efficient single-mode fiber utilization, making it an excellent investment for expanding modern bandwidth-intensive optical networks.

GLC-BX120-U: 1G Connectivity for OTN Trunk Lines

Optimizing backhaul performance, the GLC-BX120-U offers superior 1G connectivity for OTN trunk lines. Network architects highly value this optical module for securely transmitting vast amounts of continuous data across challenging metropolitan and extended regional network infrastructures.

GLC-BX120-U Module with 1490nm-TX and 1550nm-RX Wavelength

Utilizing advanced multiplexing, the GLC-BX120-U module with 1490nm-TX and 1550nm-RX wavelength capabilities splits traffic streams flawlessly. This specific bi-directional optical transceiver requires a complimentary wavelength counterpart to establish a robust, interference-free asynchronous communication channel.

GLC-BX120-U Module Supporting 120km Transmission

Built for incredible reach, the GLC-BX120-U module supporting 120km transmission leverages premium APD receivers and DFB lasers. This extended-range optical SFP completely eliminates the need for intermediate optical amplifiers during ultra-long distance single-mode fiber deployments.

GLC-BX120-U Module with Simplex LC Interface

Designed to drastically reduce cabling costs, the GLC-BX120-U module with simplex LC interface allows simultaneous data transmission and reception. This standardized single-port fiber connection greatly simplifies patch panel management while halving overall optical cabling requirements.

GLC-BX120-U Module with DOM for Real-Time Monitoring

Empowering network administrators, the GLC-BX120-U module with DOM for real-time monitoring intelligently tracks critical operating parameters. This digital diagnostic feature accurately reports transceiver temperature, voltage, and optical power, enabling proactive maintenance and minimizing unexpected network downtime.


Cisco GLC-BX120-U Compatible LINK-PP 1G SFP Certification

Compatibility tested in the LINK-PP lab. View test report

Ensuring absolute peace of mind, the Cisco GLC-BX120-U Compatible LINK-PP 1G SFP certification profile complies with stringent international optical communication standards, delivering safe, secure, and environmentally friendly telecommunication solutions globally.

Optical Transceivers Testing

Every single module undergoes the comprehensive GLC-BX120-U quality testing program. This strict manufacturing protocol guarantees that each optical transceiver perfectly meets required operational parameters before final shipment.

GLC-BX120-U Quality Certifications

Backed by industry-leading documentation, the GLC-BX120-U quality certifications include RoHS, CE, and FDA compliance. These global approvals reflect our commitment to safety and environmentally responsible optical module manufacturing.

GLC-BX120-U Certified for Reliable Host-Device Compatibility

Thoroughly evaluated across major switch brands, the GLC-BX120-U certified for reliable host-device compatibility ensures plug-and-play network integration. This seamless interoperability protects hardware investments across diverse gigabit routing environments.


Rigorous Testing Ensures Reliable SFP Performance

Our dedicated quality control laboratory performs multifaceted evaluations. This rigorous testing ensures reliable SFP performance, maximizing continuous fiber optic connection stability and longevity.

Optical

Optical Spectrum Test

We strictly verify 1490nm and 1550nm wavelength precision to prevent signal crosstalk.

Optical

Eye Pattern Test

Engineers analyze optical signal integrity to guarantee perfect high-speed gigabit data transmission.

Optical

Bit Error Rate Test

Simulated long-distance traffic validates zero-packet-loss capabilities over the full 120km fiber route.

Optical

Temperature Test

Thermal cycling ensures absolute hardware stability within the commercial zero to seventy-degree range.


Product Shipping for Cisco GLC-BX120-U Compatible LINK-PP 1G SFP

Experience a completely seamless purchasing process with optimized product shipping for Cisco GLC-BX120-U Compatible LINK-PP 1G SFP. We strictly safeguard every high-value optical transceiver during transit.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Electrostatic discharge shielding bags protect sensitive laser diode electronics perfectly.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

Custom foam inserts heavily cushion the optical modules against severe impacts.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Automated warehouse fulfillment ensures your fiber transceivers ship incredibly fast.

Global Logistics and International Delivery

Global Logistics and International Delivery

Partnered trusted couriers ensure reliable optical module delivery across borders worldwide.

Cisco GLC-BX120-U Compatible LINK-PP 1G SFP Usage Demonstration

To visualize the actual network deployment, the Cisco GLC-BX120-U Compatible LINK-PP 1G SFP usage demonstration displays the simple plug-in process. Operators can quickly connect the simplex LC optical fiber cable to instantly establish bidirectional ultra-long gigabit switch-to-router communications.

GLC-BX120-U Technical Support

LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.

Pre-Sales Technical Consultation

Pre-Sales Technical Consultation

Professional technical guidance to help customers select the most suitable GLC-BX120-U modules based on network architecture and application requirements.

Compatibility Verification Support

Compatibility Verification Support

Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.

Deployment & Installation Assistance

Deployment & Installation Assistance

Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.

Long-Term Technical Assurance

Long-Term Technical Assurance

Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.

Cisco GLC-BX120-U Compatible LINK-PP 1G SFP After-Sales Assurance

LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.

15 days

15-day no-reason return and refund

Free maintenance or replacement

Free replacement for dead-on-arrival (DOA) or defective items within the initial period

Free maintenance

 Free repair services for manufacturing defects throughout the warranty period

Limitations

Warranty exclusions and conditions apply

Model Comparison Table

LINK-PP

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Customer Reviews

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  • 4.9

    17 reviews

  • 5 Stars
    94%
    4 Stars
    6%
    3 Stars
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M***k
Denmark
Verified Purchase
5 .0
2026-04-02
Plug and play in Juniper.
L***z
Ireland
Verified Purchase
5 .0
2026-03-10
DOM support is super useful!
D***s
Mexico
Verified Purchase
5 .0
2026-01-14
Upgraded my fiber NAS setup. The single mode fiber simplex LC connection is pristine. DOM support lets me monitor TX/RX in real-time. Absolute best 1G long-haul module for the price.
D***g
Hong Kong
Verified Purchase
5 .0
2026-01-01
Perfect Cisco compatible 1G SFP. Linked up instantly over our 80km SMF fiber run.
A***n
Panama
Verified Purchase
5 .0
2025-10-30
Simplex LC connector fits snug. 120km distance spec is accurate for our rural backhaul.
A***l
Norway
Verified Purchase
5 .0
2025-10-13
Great OEM alternative. DOM readings match perfectly with our Brocade switch CLI.
D***r
Saudi Arabia
Verified Purchase
5 .0
2025-10-13
Awesome B2B procurement experience. These 1490nm/1550nm SFPs saved us a ton of budget!
R***n
France
Verified Purchase
5 .0
2025-04-07
Best Cisco alternative optical transceiver.
C***n
Sweden
Verified Purchase
4 .0
2025-03-25
FedEx delayed my Simplex LC SMF transceivers by a day. Optics run perfectly though!
D***g
Russian Federation
Verified Purchase
5 .0
2025-01-27
Works flawlessly in Dell equipment. DFB laser TX power is exactly as advertised.
R***z
Argentina
Verified Purchase
5 .0
2025-01-01
Flawless Simplex LC SMF connection. ✨
S***o
Mexico
Verified Purchase
5 .0
2024-04-17
They communicate well, adjust my delivery costs when I make multiple orders and there prices are competitive.
J***y
Indonesia
Verified Purchase
5 .0
2023-12-25
Very quality product and very Fast shipping. I am pleased with my order and would do business with them again. Thanks!
M***n
Japan
Verified Purchase
5 .0
2023-10-01
module works as expected. shipping was quick.
V***v
Poland
Verified Purchase
5 .0
2023-07-11
Second time buying this 100BASE-T Magnetics,everything goes well as usual.
J***k
Denmark
Verified Purchase
5 .0
2023-05-28
excellent web page, available mostly parts with low prices
B***r
United States
Verified Purchase
5 .0
2023-04-18
Very easy to navigate and easy ordering process.
Verified Purchase
.0
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