• Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module

Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module

Compatible:
NO. Brand  Compatible P/N Remarks
1 Cisco  GLC-EZX-SM-120 
2 Alcatel-Lucent  SFP-GIG-EZX
3 Arista Networks  SFP-1G-EZX-120
4 Brocade  E1MG-EZX-120
5 Juniper  SFP-1GE-EZX-120
6 ZTE  SFP-GE-S120K
7 H3C  SFP-GE-LH120-SM1550
8 Dell SFP-EZX-120
9 Extreme 10064H-120
10 Huawei eSFP-GE-ZX120-SM1550 
11 Intel E1G-SFP-EZX-120
12 IBM E1G-SFP-EZX-120
13 Netgear AGM731F-120
14 Ciena XCVR-A10Y55-120
15 Adtran 1200485G1-120
16 Calix 100-01511-120
17 NVIDIA/Mellanox MME1G20-EZX-120
18 Avaya AA1419053-E6-120





Description
Product Detail:
HYTOPTODEVICE Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP Transceiver 
   The HYTOPTODEVICE Cisco GLC-EZX-SM-120 Compatible SFP transceiver module is an elite optical solution engineered for 1.25Gbps Gigabit Ethernet and 1G Fibre Channel. Operating at the 1550nm wavelength, this 1.25G 120km SFP module is designed for ultra-long-haul transmission over single-mode fiber (SMF). As a premium Cisco GLC-EZX-SM-120 compatible transceiver, it features a high-power 1550nm DFB laser and an ultra-sensitive APD receiver, providing a superior optical budget for spans up to 120km. It is fully Compliant to IEEE 802.3ah Gigabit Ethernet standards, Class 1 FDA Laser Safety certified, and strictly RoHS Compliant. Equipped with DDM/DOM (Digital Diagnostic Monitoring), this transceiver module provides real-time telemetry for Cisco Catalyst, Nexus, and ISR/ASR platforms..

Compatibility and Supported Devices

The HYTOPTODEVICE Cisco GLC-EZX-SM-120  compatible SFP is rigorously verified for the following platforms:

  • Cisco Catalyst Switches: Fully compatible with 2960, 3650, 3850, 9200, and 9300 series.

  • Cisco Nexus Switches: Optimized for Nexus 3000, 5000, and 9000 series (using 1G breakout/mode).

  • Cisco Routers: Seamlessly works with ISR 4000, ASR 9000, and ASR 1000 series.

  • Smart Encoding: Precision-coded by HYTOPTODEVICE to bypass "Unknown Transceiver" errors. It is recognized as a native Cisco module, ensuring the port remains active without needing the service unsupported-transceiver command on most modern IOS-XE versions.

Primary Usage Scenarios
  • Metropolitan Backbone: Connecting disparate corporate headquarters or data centers across a city-wide reach via 120km Gigabit Ethernet SFP links.

  • Carrier Edge-to-Core: Providing a stable 1550nm SFP for ISP backhaul 120km links in telecommunications infrastructure.

  • Real-time Link Diagnostics: Integrated DDM/DOM allows for monitoring laser power and temperature directly from the Cisco CLI, essential for maintaining 120km SFP reliability.

  • Compliance: A Class 1 FDA Laser Safety certified SFP transceiver for Cisco, adhering to global environmental standards as a RoHS compliant 1550nm 120km SFP.

Key Product Parameters
Cisco Compatible  GLC-EZX-SM-120      Vendor Name HYTOPTODEVICE
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 1550nm Max Distance 120km 
Connector Duplex LC Transmitter Type 1550nm DFB
Cable Type SMF Receiver Type APD
TX Power 0~+5dBm Receiver Sensitivity < -32.0dBm
Protocols SFF-8472 MSA Compliant, IEEE 802.3ah-2004 Operation Temperature 0 to 70°C (32 to 158°F)

Connectivity Solutions(Applications):

FAQ for Cisco GLC-EZX-SM-120 Compatible SFP Transceiver

  • Q: Is the GLC-EZX-SM-120 different from the standard GLC-ZX-SM?

    • A: Yes. The GLC-ZX-SM is typically rated for 70-80km. The GLC-EZX-SM-120 uses a more powerful laser and a more sensitive APD receiver to achieve 120km.

  • Q: Do I need an attenuator for this module?

    • A: Mandatory Warning: Because of the extremely high transmit power, you must use a 15dB - 20dB optical attenuator if testing on fiber spans shorter than 50km to avoid permanently damaging the optical receiver.

  • Q: Does this module support DDM on Cisco switches?

    • A: Yes, the HYTOPTODEVICE module fully supports DDM/DOM, allowing you to use the "show inventory" and "show interfaces transceiver" commands.

Quality Assurance:Your Trusted Optical Transceiver Source

HYTOPTODEVICE is a vertically integrated manufacturer of high-performance optical transceivers. By controlling core materials at the source, we ensure every SFP module meets the highest standards of reliability and customization.

  • Vertical Integration: In-house core material production ensures a stable, self-sufficient supply chain for all optical modules.

  • Total Traceability: End-to-end oversight from raw components to final transceiver assembly guarantees 100% controllability.

  • Bespoke Solutions: Expert-led R&D provides customized SFP transceiver designs tailored to your specific technical needs.

  • 24-Hour Response: Our technical team guarantees a primary response to any inquiry or quality concern within 24 hours.

Carrier-Grade Quality. Factory-Direct Control. Rapid Response.

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,UL & 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: 


Others:





  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module
  • Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 1550nm 120km DDM Duplex LC/UPC SMF Optical Transceiver Module

Interested in? or Meet any problem?

Enter your contact info, our professional consultant will reach out within 24 hours
FirstName*
LastName*
Email*
Company registered country/region*
Tel/WhatsApp*
Details*

Download