Cisco glc lh sm sfp. Cisco glc lh sm sfp

Cisco GLC-LH-SM-20 Compatible 1000Base LH SFP Transceiver Module (1310nm SMF 20km LC DDM)

Quality Assurance

Excellent quality is the foundation of FiberMall’ s survival and development. Our operation team are experts with many years’ experiences in optical communication industry. Our manufacturers are first-class manufacturers in the industry. Many of them have the qualification of OEM for first-class system equipment manufacturers.

Quality Certification

We control the quality of our products, including our strict qualification of manufacturers, quality control process and production technology, and compliance with certification and safety standards. At present, our products meet the industry standards and mainstream quality certification, such as ISO 9001, CE, RoHS, FCC, etc.

our advantages

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Rigorous Industrial ProductTesting

Optical communication products belong to industrial products,which require high stability and reliability.FIBERMALL adopts leading product design, first-class raw materials and production technology to ensure the first-class quality of our products, so that your project can be used, installed stably and reliably

High and low temperature cycle,aging test to ensure good temperature characteristics

Mechanicalvibration testing to ensure the stability of products

Excellent designand rigorous testing ensuregood EMI performance

MTBF(Mean Time between Failures)testing ensure high stablility

0% 3rd Party Compatible

FiberMall Compatibility Testing Center has most of the mainstream brand switches and devices.Before shipment,We will code the optical modules or DAC/AOC cables,then test them on the corresponding switches to ensure that our products are 100% compatible with your system.

Coding(EEPROM Programming) Testing system

Partial test demonstartion

Cisco N9k-C92160YC-X-C HP ProCurve 5406zl J8697A ARISTA 7-50QX-32 Juniper EX4300 HW S5700-28X-L1-AC Brocade VDX 6720 DELL S4048 ON DATACOM DM4100 H3C LS-5500-28C-S

v Supports up to 10.7Gbps bit rates

v Single 3.3V power supply

v 1310nm FP laser and PIN photo detector, Up to 10km for SMF transmission

v Compliant with SFP MSA and SFF-8472 with duplex LC receptacle

v Real-Time Digital Diagnostic Monitoring

v 1.25Gbps Optical systems

PI Part #: SFP-LX-10K


Out of Stock ; email notification on arrival.

Shipping Information

All products ship same day from our warehouse in Walnut, CA if ordered within the shipping cutoff times

Product Highlights

  • Compatible Cisco GLC-LH-SM 1.25G fiber SFP transceiver
  • Transmission Distance: 10km
  • Fiber Connector: LC Duplex
  • Fiber Type: Singlemode fiber
  • Complies with MSA (Multi-Sourcing Agreement) standards

Cisco GLC-LH-SM Compatible 1000BASE-LX 1.25G SFP Transceiver Module 1310nm SMF LC with DOM. 10km

Small form factor pluggable (SFP) transceivers are used in data communication applications where it’s often installed on networking hardware (switches, media converters, etc.) to connect a fiber optic cable. Due to its higher port density, its support of different speeds, and its ability to use various types of fiber cables, the SFP transceiver is often used by OEMs when compared to a standard GBIC (Gigabit Interface Converter). The SFP transceiver is hot-pluggable and compact, making it ideal for use in network applications. SFP transceivers come with various specifications, allowing users to tailor to their specific preference.

The Leapmicro series SFP transceivers from PI Manufacturing are designed for use with Cisco equipment. Equivalent to the Cisco GLC-LH-SM, this transceiver is 100% compatible and fully tested to meet or exceed OEM specifications. Specific OEM configuration data is loaded onto the EEPROM of the transceiver, allowing it to operate identically to the OEM’s transceiver. The transceiver complies with Multi-Source Agreement (MSA) standards.

  • SFP module with Singlemode LC Duplex connector
  • Data Rate: 1.25G
  • Wavelength: 1310nm
  • Cable Type: SMF (Singlemode fiber)
  • Fiber Connector: LC Duplex
  • Maximum Distance: 10km
  • With DDM (Digital Diagnostic Monitoring) / DOM (Digital Optical Monitoring)
  • Hot pluggable if your device supports
  • Application: 1000BASE-LX
  • Compliant with MSA (Multi-Sourcing Agreement) standards
  • Lead free
  • RoHS compliant

Quality and Compliance

Our quality policy is in compliance with various standards. This includes ISO:9001, RoHS, REACH, CE, FCC, and FDA. PI Manufacturing’s quality assurance system ensures that from design, production, receiving / distribution, and deployment that our products deliver. That is the backbone of our company’s fiber products.

At PI Manufacturing, we want to make sure that you’re covered for your purchase. Our Leapmicro series fiber products deliver performance, coupled by reliability that’s backed with our industry standard lifetime warranty.

Please Note: Deploying Leapmicro transceivers does not void the warranty issued by the network equipment manufacturer. All network equipment manufacturers state that installing 3rd party transceivers will not affect the warranty provided on their equipment.

Products that have passed certifications and safety standards

Onshore and offshore manufacturing capabilities

Products ready to ship same day from our Walnut, California facility

Cisco glc lh sm sfp

Our price is lower than the manufacturer’s “minimum advertised price.” As a result, we cannot show you the price in catalog or the product page.

You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart.

Our price is lower than the manufacturer’s “minimum advertised price.” As a result, we cannot show you the price in catalog or the product page.

You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart.

Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SFP 1310nm 20km DOM Transceiver Module for SMF

QSFP Extender Solutions Used for long-distance transmission under 40G QSFP. The QSFP Port could be transferred/converted into 4x SFP port by Direct Attach Copper (DAC) technology under very low insert lose.

Cisco 10GBASE-LR SFP Optical Transceiver Connectivity Solutions What is the simplest cabling solution for connecting two Cisco switches with two 10GBASE-LR SFP optical transceivers?

HiFiber’s Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SMF Single-Mode 1310nm 20km transceiver are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 550m transmission distance with MMF. The fiber optic transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA).


  • Operating Data Rate up to 1.25Gbps
  • 850nm VCESL Laser Transmitter
  • 550-Meter@50/125 μm MMF
  • Single 3.3V Power and TTL Logic Interface
  • Hot-Pluggable SFP Footprint Duplex LC Connector Interface
  • Class 1 FDA and IEC60825-1 Laser Safety Compliant
  • Compliant with SFP MSA Specification
  • Operating Case Temperature Standard:0°C~70°C

Warranty Service

Warranty Service Pack1: All HiFiber’s products share 1-year standard warranty. Warranty Service Pack2: Enhanced Item (Apply to Online order at

  • This warranty right only lies in the initial purchaser of products and is not transferrable.
  • This warranty right do not apply to special-offer products. For special-offer products, we will remark the warranty period under the product.
  • The warranty clause does not include any product damage caused by improper installation, accident hazards, natural disasters, abuse, misuse, low power or over-voltage, incorrect operation, poor/ bad environmental conditions and any unauthorized disassembly, repair or modification.
  • The warranty clause does not apply to products with modified internal electronic information, EEPROM information, etc. Unauth
  • The warranty clause does not include system problems caused by third-party software, upgraded software or upgraded iOS of the connecting devices.
  • The information above is the complete warranty provisions for products, which is the only effective warranty promise and will replace all written or verbal warranty commitments. Other warranties out of this clause, including decrees in other countries, provinces or locations and any indicative warranty clauses that is nonaggressive, merchantable or suited for some specific purposes, will not be recognized by
  • has not authorized its products to be used in those critical parts that is related to device life, or other applications in which product failure or mal-function may cause injury or death. If products are used in military equipments, traffic control equipments, disaster prevention systems or medical equipments, will not assume any liability for any possible casualties or property loss.
  • warranty responsibility only confines to maintenance, replacement and interest-free refund services. Any voilation of the warranty clause or law will be compensated only by maintenance, replacement or interest-free refund. To the maximum extent of law permission, will not be held the responsibility to its customers or end users for any damage, expenses, loss of data, loss of income, loss of savings, loss of profits and any unavoidable or indirect damage resulted from the purchase, use or incapable function of’s product

15-Day money back Guarantee:

15-Day money back guarantee applies to all products sold by provided that the items are new, undamaged, unmodified and in good resalable condition. If you are not satisfied with the product, you can apply return within 15 days. All freight charges, transaction costs (bank charge or Paypal cost, etc) are the responsibility of the customer.

  • The products are proved to have been abused, misused, replaced, repaired, or modified.
  • After 15 days of delivery, returns are not acceptable. If the items are still under warranty period, customer could ask for repair or replacement.
  • No Return agreement was reached with a sales representative before Returns.
  • Return process is not done based on Return instructions.

About Us is a leading supplier of fiber connectivity network solutions for Data Center and HPC. The main products include compatible module, direct-attach cable(DAC), active optical cable(AOC), Jump Cable, CWDM/DWDM system, network integrated card(NIC), etc. is with the goal of providing quality guaranteed and cost effective products for customers all around the world. features a huge inventory of over US 1.0 million buffer stock that ready to shipped out in the same day of customers’ purchase(in most cases) with no minimum orders or restocking fees.

What makes completely different is the lifetime technical support. That’s right, call anytime during business hours and get the help you need whether you made your purchase last week, last month, or last year! Our products are compliant with CE, RoHS, FCC, ISO9001, ISO14001 etc. and all products are environmentally friendly.



CISCO GLC-LH-SMD SFP Module is one of the most popular optical modules at the present times.

Modules Interface Wavelength Tx power Receiver Sensitivity DOM Support Temperature Range
Cisco GLC-LH-SM LC duplex 1310nm -9.5 ~.3dBm 23dBm No 32℉to 158℉ (0℃to 70℃)

This model is an MSA protocol compliant connectivity solution that connects a Gigabit Ethernet port or slot to an optical fiber network. It is also known as 1000BASE-LX / LH SFP transceiver.

CISCO GLC-LH-SMD SFP Module Specification

Optical module model GLC-LH-SMD Package type SFP
Center wavelength 1310nm Rate 1000Mbps
Interface Duplex LC The maximum transmission distance 10km
Laser type FP 1310nm Fiber type MMF/SMF
DOM function Support Transmit optical power -9~-3dBm
Receiving sensitivity Commercial temperature 0~70℃

CISCO GLC-LH-SMD SFP Module and Related Models

Optical module model GLC-LH-SMD GLC-SX-MMD GLC-ZX-SM
Optical module name Cisco GLC-LH-SMD SFP Gigabit optical module Cisco GLC-SX-MMD SFP Gigabit optical module Cisco GLC-ZX-SM SFP Gigabit optical module
Package Type SFP SFP SFP
Rate 1000Mbps 1000Mbps 1000Mbps
Center wavelength 1310nm 850nm 1550nm
Interface Duplex LC Duplex LC Duplex LC
Transmission distance 10km 550m 70km
Transmit optical power -9~-3dBm -9.5~-3dBm 0~5dBm
Receiving sensitivity
DOM Function Support Support Support
Laser type FP 1310nm VCSEL 850nm DFB 1550nm
Commercial temperature 0~70°C 0~70°C 0~70°C
Application of optical modules Gigabit Ethernet Gigabit Ethernet Gigabit Ethernet
1000BASE-LX Fiber Channel Fiber Channel
Compatible switches Cisco ME 3600 Cisco Catalyst 3560 Cisco Catalyst 2960
Cisco ME 3800 Cisco Catalyst 3750 Cisco Catalyst 3560
Cisco ME 3900 Cisco Catalyst Express 500 Cisco Catalyst Compact 2960


These three optical modules are not absolutely good or bad, you need to choose the right optical module according to your network application. From a functional point of view. See, Cisco GLC-LH-SMD, GLC-SX-MMD optical modules have more DOM functions than GLC-ZX-SM optical modules, if you need to have DOM function For optical modules, it is not recommended to choose the GLC-ZX-SM optical module. If you need a long-distance optical module, it is recommended that you choose a GLC-ZX-SM optical module with a transmission distance of 70km; if it is a short-distance transmission, you can

Select the GLC-SX-MMD optical module with a transmission distance of 550m; if you need 10km data transmission, it is recommended that you select the GLC-LH-SMD optical module.

CISCO GLC-LH-SMD SFP Module Features

1 st. Hot swappable to maximize uptime and simplify serviceability

2 nd. Flexibility of media and interface choice on a port-by-port basis, so you can “pay as you populate”

3 rd. Robust design for enhanced reliability

4 th. Supports digital optical monitoring (DOM) capability

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