Cisco  GLC-EX-SMD Compatible 1000BASE-EX SFP Optical Transceiver Module | HYTOPTODEVICE

Full Compatibility List and Supported Devices of  Fiber Optic Transceiver
    One of the biggest advantages of third-party optical transceiver is their strong brand compatibility,which helps enterprises cut hardware costs without sacrificing performance.Our 1.25G SFP 40km optical transceivers are fully tested and certified to work seamlessly with the following Cisco equipments:

• Cisco Catalyst Switches: 2960-X, 3650, 3850, 4500-X, 6500, 6800, and 9000 (9200/9300/9500) series.

• Cisco Nexus Data Center Switches: Nexus 2000, 3000, 5000, 7000, 9000 series.

• Cisco Routers: ISR 4000 series (4321, 4331, 4451), ASR 1000, and ASR 9000 series.

• Cisco Firepower / ASA: ASA 5500-X series and Firepower 2100/4100 appliances.
  
  

Main Application Scenarios of Fiber Connection Module

• Metropolitan Area Networking (MAN): Connecting remote office branches or data centers that exceed the 10km limit but are within a 40km radius.

• ISP Backhaul Links: Providing high-stability Gigabit fiber uplinks for carrier-grade infrastructure over long-distance single-mode fiber.

• Regional Campus Connectivity: Linking large-scale university or government facilities where campus-wide fiber spans require 1000Base-EX performance.
  

FAQ for Transceiver Module

Q1: Will this module work in Cisco ports without the "service unsupported-transceiver" command?
A1: Yes. Our 1310nm 40km SFP are flashed with the correct Cisco EEPROM signatures, so they are recognized as "Genuine Cisco" modules by IOS, IOS-XE, and NX-OS, ensuring they work immediately without extra configuration.

Q2: What is the difference between GLC-LH-SMD and GLC-EX-SMD?
A2: The GLC-LH-SMD is a standard LX module supporting 10km, while the GLC-EX-SMD is an Extended Distance module supporting up to 40km using a higher-powered 1310nm laser.

Q3: Does the HYTOPTODEVICE GLC-EX-SMD compatible sfp module support DOM?
A3: Absolutely. The "D" in the part number stands for Digital Optical Monitoring (DOM). You can monitor real-time temperature, voltage, and optical power via the show int trans detail command.

Q4: Do I need an attenuator for short distances?
A4: For fiber links under 5km, we recommend using a 5dB or 10dB LC attenuator to prevent the high-power receiver from being over-saturated, ensuring the longevity of the module.

Q5: Will using HYTOPTODEVICE optical modules void my Cisco SMARTnet?
A5: No. Cisco cannot void your SMARTnet support for using high-quality third-party compatible transceivers. Support is only denied if the specific third-party part is the direct cause of a hardware failure.

Q6:How to choose the right 1.25g 40km optical transceiver?
A6:(1)Confirm transmission distance needs:for links greater than 20 kilometers and less than 40 kilometers，1000BASE-EX  SFP transceiver is the most cost-effective choice.(2)match device brand and port type:confirm the switch brand and port specification before purchase to ensure the transceiver is fully compatible and avoid compatibility risks;(3)Balance performance and budget:compared with expensive OEM original modules, qualified third-party 1.25g sfp ex transceiver can reduce costs by 70%-90% while maintaining the same performance.

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% MSA-compliant modules with Cisco, Huawei,Dell,Juniper, and Arista compatibility
• ISO 9001:2015 certified manufacturing facility in Shenzhen
• 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.

"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany

Quality Certification & Compliance

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, 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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