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Fiber Optic Transceivers
SFP Transceivers
1G SFP
Cisco
48929
Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SFP 1310nm 20km DOM Transceiver Module
Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SFP 1310nm 20km DOM Transceiver Module
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Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SFP 1310nm 20km DOM Transceiver Module

#48929
Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SFP 1310nm 20km DOM Transceiver Module

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

  • US$ 7.00

    11320 In Stock

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US$ 7.00
FS P/N: SFP1G-LX-31
Compatible:
Cisco
Juniper
Arista
Brocade
H3C
Generic
FS
Customized
Transceiver Type:
Fully compatible with Cisco switches, for Compatible Matrix, please click here.
GLC-T
GLC-TE
GLC-TA
GLC-SX-MM
GLC-SX-MM-RGD
SFP-GE-S-2
SFP-GE-S-2
SFP-GE-L
GLC-LX-SM-RGD
GLC-LH-SM-20
GLC-EX-SMD
MGBLH1
GLC-EX-SM1550-40
GLC-ZX-SM
GLC-ZX-SMD
GLC-EZX-SM-100
GLC-EZX-SM-120
GLC-EZX-SM-160
More +
11320 In Stock,
·16304

In Stock, DE Warehouse

·3456

In Stock, Asia Warehouse

·216

In Stock, SG Warehouse

·131

In Stock, AU Warehouse

U.S. Warehouse
FS U.S. Warehouse located in Delaware, supports fast same day shipping. Learn more
Deliver to
New York, 10010
Free Shipping via UPS Ground® on orders over US$ 79
Get it by Thu. Jul. 9
The delivery date applies to the inventory items purchased by 5pm EST on business days. If your requested quantity exceeds the inventory, it will be dispatched from FS Asia warehouse with Global Shipping Program (GSP).
There may be a delay to your delivery service due to COVID-19 and increased volume. For more tracking details, please refer to My Account.

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If items don't work as expected, FS warranty may allow the items to be returned, exchanged, or repaired.


We offer a 30-day return & refund and exchange service for most in-stock items. And within the warranty period, we still offer free repair services.


For consumables, there is no warranty period and free repair services. If there are any quality issues after delivery, please feel free to contact us. We will handle it promptly. View Return Policy and Warranty page for more details.

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You can Request Technical Support to get timely help for any questions about the items or a free connectivity solution design.

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Cisco GLC-LH-SM-20 Compatible 1000BASE-LX/LH SFP Transceiver Module (SMF, 1310nm, 20km, LC, DOM)

Cisco Compatible GLC-LH-SM-20 Vendor Name FS.COM
Form Factor SFP Max Data Rate 1000Mbps
Wavelength 1310nm Max Cable Distance 20km
Connector LC duplex Optical Components FP 1310nm
Media SMF DOM Support Yes
TX Power -9.5 ~ -3dBm Receiver Sensitivity < -23dBm
Industrial Temperature Range -40 to 85°C (-40 to 185°F) Protocols SFF-8472 MSA Compliant, IEEE 802.3ah-2004

Product Tree

Direct Connection for Cisco 1000BASE-LX SFP Transceiver Module

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

US$ 7.00

1m (3ft) LC UPC to LC UPC Duplex OS2 Single Mode PVC (OFNR) 2.0mm Fiber Optic Patch Cable

US$ 3.90

1000BASE-LX/LH SFP 1310nm 10km DOM Transceiver Module for FS Switches

US$ 7.00

S3900-24F4S 20-Port Gigabit SFP and 4 1Gb Combo L2+ Stackable Managed Ethernet Switch with 4 10Gb SFP+ Uplinks

US$ 414.00

Quality Testing Program

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Quality Control System

Take a look at our optics test program and see what truly sets us apart.

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Quality Certifications

  • This product provides the lifetime warranty, which aims to reflect our greatest sincerity. Please contact us to learn more.
  • This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
  • This product meets applicable RoHS requirements. The RoHS directive restricts the use of ten hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
  • REACH is a regulation of the European Union, adopted to improve the protection of human health and the environment through the better and earlier identification of the intrinsic properties of chemical substances. Please contact us to learn more.
  • CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
  • This product was produced under the requirements of CE to indicate conformity with the essential health and safety. Please contact us to learn more.
  • This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
  • This product is RCM compliant, which indicates compliance with electrical safety, EMC, EME and telecommunications legislative requirements. Please contact us to learn more.
  • This product fully accords with the WEEE, which is an environmental regulation of the European Union and aims to enhance the improvement of collection, treatment and recycling of products at the end of their life. Please contact us to learn more.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

Test Bed

Cisco Nexus 9300 Series (Switch/Module : N9K-C9396PX; Uplink Module : N9K-M12PQ )

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Downloads

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Questions & Answers

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  • Q:

    What kinds of custom choices are offered in FS.COM? By G***k on 06/12/2017

    A:

    As for customized transceivers, FS.COM offers regular custom choices such as compatibility, transmission distance, operating temperature, label pattern, label colors and etc. What's more, FS.COM welcomes any inquiry for customized products and solutions for all need and specifications. By R***l on 06/12/2017

    0 0
  • Q:

    Why should I trust FS.COM compatible transceivers? By S***a on 05/13/2017

    A:

    Besides the price advantage we have compared to branded transceivers, FS.COM compatible transceivers also maintain the same performance and reliability. To satisfy our customers' needs of high performance, all of our transceivers are tested multiple times in mainstream original brand switches in our test center before shipped out. By J***s on 05/13/2017

    0 0
  • Q:

    Once I place an order for my transceivers, how long will it take to receive them? By M***r on 04/12/2017

    A:

    FS.COM has been maintaining huge stock level of the 1000BASE-LX SFP transceivers in U.S. warehouse, EU warehouse and CN warehouse. As long as the products you order are all in stock, we will ship them out the same day you place your order. As for some specific products or products that have a short stock, we will keep you informed ahead of time before you place your order. By C***a on 04/12/2017

    0 0
  • Q:

    Is it necessary to clean a transceiver's optical connector? How to clean the 1000BASE LX transceivers? By T***n on 03/29/2017

    A:

    Dust and contamination can accumulate on transceiver's connectors and cause problems such as reducing the optic launch power. To ensure better connection, FS.COM strongly recommends cleaning both connectors each time you disconnect and reconnect them. FS.COM High Quality One-Push Fiber Optic Pen Cleaner for 1.25mm LC/MU Connector is the best cleaning choice for 1000BASE-LX SFP transceivers. By K***r on 03/29/2017

    0 0
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  • 4.9

    219 reviews

  • 5 Stars
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    4 Stars
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