Cisco GLC-EZX-SM-120 Compatible 1000BASE-EZX SFP 120km 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 1G SFP 120km optical transceivers are fully tested and certified to work seamlessly with the Cisco equipments:

• Cisco Catalyst 2960 & 3560 Series: WS-C2960X-24PD-L, WS-C2960XR-48FPS-I, WS-C3560X-48T-S

• Cisco Catalyst 3750 & 3850 Series: WS-C3750X-24T-S, WS-C3850-24T-E, WS-C3850-48P-S

• Cisco Catalyst 9200 & 9300 Series: C9200-24T, C9200L-48P-4X, C9300-24T, C9300-48U

• Cisco ME (Metro Ethernet) Series: ME-3600X-24CX, ME-C3750-24TE

• Cisco ASR & ISR Router Series: ASR 901, ASR 1001-X, ASR 9001, ISR 4331, ISR 4451-X

• Cisco Nexus Series: Nexus 3048, Nexus 93180YC-FX

Main Application Scenarios of Fiber Connection Module

• Extreme Long-Haul Infrastructure: Directly linking deep rural, regional, or cross-border facilities up to 120km apart without investing in expensive inline optical repeaters or regenerators.

• Utility & Pipeline Telemetry: Bridging communication gaps across remote critical infrastructure networks, such as oil and gas pipelines, railway signaling systems, and electrical power grids.

• Regional Service Provider Transport: Connecting centralized core telecom facilities to deep edge nodes, rural broadband cabinets, or remote aggregation points.

• Geographically Isolated Data Centers: Constructing low-latency 1G backup and data replication paths between highly separated primary data hubs and disaster recovery (DR) sites.

Connectivity Solutions(Applications) of Pluggable Transceiver

FAQ for Transceiver Module

• Q1: What is the maximum distance supported by the Cisco GLC-EZX-SM-120 compatible SFP? A1: It is designed to cover extreme, ultra-long-haul distances of up to 120 kilometers (approx. 74.5 miles) over high-quality single-mode fiber (SMF).

• Q2: Do I absolutely need an optical attenuator when deploying this 120km module?
  A2: Yes. Because the transmitter generates strong optical signals and the APD receiver is highly sensitive, connecting this module over short fiber runs (typically under 60km) without a 15dB to 20dB inline optical attenuator will permanently damage the receiver.

• Q3: What is the receiver overload threshold for the GLC-EZX-SM-120?
  A3: The receiver overload is usually around -10 dBm. Any incoming light signal stronger than this threshold risks saturating or burning out the receiver optic.

• Q4: What is the center operating wavelength of this module?
  A4: It operates strictly at 1550nm, leveraging the lowest attenuation window of single-mode optical fiber.

• Q5: Can I use this 120km module with multi-mode fiber patch cables?
  A4: No. It is strictly compatible with 9/125µm Single-Mode Fiber (SMF). Multi-mode fiber will cause severe signal loss and the link will not establish.
  
  

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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