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GLC-LH-SMD
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Name:
GLC-LH-SMD (Cisco 1000BASE-LX/LH SFP Transceiver Module, 10km, MMF/SMF, LC, DOM)
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0882658340901
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 90
- List Price:
$150.00
- Price:
$78.0048% off
Quantity:
1
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GLC-LH-SMD Overview
GLC-LH-SMD uses the SFP form factor for Cisco Gigabit Ethernet ports and slots. The transceiver carries 1 Gbps Ethernet traffic across optical links in Cisco switch and router interfaces. Its optical interface works with single-mode fiber and supported multimode fiber under the 1000BASE-LX/LH design. A Dual LC/PC connector presents separate transmit and receive paths for duplex fiber operation. The module operates at a 1310 nm nominal wavelength for long-wavelength LX/LH signaling. Maximum distance reaches 10 km on ITU-T G.652 single-mode fiber under Cisco cabling specifications. Multimode operation reaches 550 m when the installed path follows Cisco mode-conditioning guidance. The operating temperature class is Extended for this specific ordering number. Digital Optical Monitoring reports optical output power, optical input power, temperature, laser bias current, and supply voltage.
TX power range delivers -9.5 dBm to -3 dBm across the 1000BASE-LX/LH optical parameter table. RX sensitivity reaches -20 dBm at the receive end of the module. RX overload occurs at -3 dBm according to the same receive power range. Maximum channel insertion loss measures 6 dB on G.652 paths and 2.4 dB on multimode paths. IEEE 802.3z governs the Ethernet signaling standard used by GLC-LH-SMD. SFF-8472 governs the monitoring interface used for digital diagnostics. Laser safety compliance aligns with Class I 21CFR1040 and IEC 60825-1 markings. Patch cords require PC or UPC end faces because APC assemblies are unsupported. Minimum installed cable distance starts at 2 m for listed SFP ports. Power consumption stays within Cisco's typical 1 W per-port value for optical SFP modules. Height measures 8.5 mm, width measures 13.4 mm, and depth measures 56.5 mm. Cisco lists typical module weight at 75 grams or less.
Cisco platform support spans Catalyst 2960, Catalyst 3560, Catalyst 3750, Catalyst 3850, Catalyst 4500, and Catalyst 6800 families. Further platform coverage reaches Nexus 3000, Nexus 7000, ASR 1000, ISR 4000, MDS 9000, and Industrial Ethernet 2000. Deployment roles cover enterprise campus backbones, aggregation uplinks, edge router handoffs, service provider access links, and data centre management paths. Required cable grades align with OS1 or OS2 for long building spans. Supported shorter runs align with OM2, OM3, or OM4 planning. Buy GLC-LH-SMD from ORM Systems in new and certified refurbished condition. Certified refurbished stock is tested for host recognition, link establishment, port negotiation, and physical condition before dispatch. Request a quote for GLC-LH-SMD to check price, availability, lead time, and condition options. Quoted orders support planned spares, replacement optics, and multi-site rollout schedules across enterprise network estates. ORM Systems provides bulk quotation for enterprise and volume buyers.
GLC-LH-SMD price is $97.00, a 91.7% saving from the Cisco list price of $1,174.00. GLC-LH-SMD is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for GLC-LH-SMD for additional pricing. Browse the full Sfp series or explore all Cisco products.
GLC-LH-SMD Specifications
- Product Type
- Optical Transceiver
- Brand
- Cisco
- Series
- Cisco Gigabit Ethernet SFP
- Use Case
- Enterprise Campus / Data Center / Metro / Service Provider
- Form Factor
- SFP
- Data Rate
- 1 Gbps
- Protocol
- Ethernet
- Fiber Type
- Single-Mode (SMF) / Multi-Mode (MMF)
- Connector Type
- LC Duplex
- Wavelength TX
- 1310 nm
- Wavelength RX
- 1310 nm
- Reach
- 10 km (OS1/OS2) / 550 m (OM2/OM3/OM4)
- Cable Standard
- OS1 / OS2 / OM2 / OM3 / OM4
- TX Power Min
- -9.5 dBm
- TX Power Max
- -3 dBm
- RX Sensitivity
- -20 dBm
- RX Power Max
- -3 dBm
- Supported Standards
- IEEE 802.3z / SFF-8472
- DDM/DOM Support
- Yes
- Power Consumption
- 1 W
- Operating Temperature
- Extended (-5°C to 85°C)
- Compatible Platforms
- Cisco Catalyst 2960 / Cisco Catalyst 3560 / Cisco Catalyst 3750 / Cisco Catalyst 3850 / Cisco Catalyst 4500 / Cisco Catalyst 6800 / Cisco Nexus 3000 / Cisco Nexus 7000 / Cisco ASR 1000 / Cisco ISR 4000 / Cisco MDS 9000 / Cisco Industrial Ethernet 2000
- Height
- 8.5 mm
- Width
- 13.4 mm
- Depth
- 56.5 mm
GLC-LH-SMD Use Case
Access to Distribution Fiber Handoff
GLC-LH-SMD sits in a Cisco access switch SFP port and carries a 1G optical uplink toward a distribution switch over 1310nm 1000BASE-LX/LH fiber. Engineers install matching optics at both ends, patch LC duplex cabling through the fiber panel, and configure the switchport as a trunk, routed port, or management uplink according to the campus design. DOM readings expose receive power and transmitter health during turn-up. The result is a stable 1G access-to-distribution path across fiber runs that exceed copper distance limits.
Building Backbone Extension Point
The module operates at the edge of a building or wiring room where a Cisco router or switch extends 1G connectivity across single-mode fiber up to 10km. Network teams place GLC-LH-SMD in compatible SFP interfaces, document the optical budget, clean LC connectors, and validate DOM values before accepting the link. Multimode paths stay limited to Cisco-supported distances and use mode conditioning where the fiber design requires it. The result is a controlled backbone extension without converting the port to copper or upgrading the link to 10G.
Operational Spare Standardization Point
GLC-LH-SMD standardizes 1G long-reach spare optics for Cisco environments that contain Catalyst, Nexus, ISR, ASR, or industrial Ethernet platforms with supported SFP ports. Operations teams stock the same 1000BASE-LX/LH optic for 1310nm LC fiber links, then verify host support against the platform transceiver matrix before deployment. DOM support gives technicians a repeatable way to compare transmit and receive levels after replacement. The result is faster restoration of 1G fiber uplinks with fewer mismatched optics in the field maintenance inventory.
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Product Comparison Table 
| GLC-LH-SMD |  GLC-FE-100LX-RGD |  GLC-FE-100FX48 | |
|---|---|---|---|
| Product Type | Optical Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP |
| Data Rate | 1 Gbps | 1G | 100 Mbps |
| Connector Type | LC Duplex | LC | LC Duplex |
| Fiber Type | Single-Mode (SMF) / Multi-Mode (MMF) | Single-mode | Multi-mode |
| Operating Temperature | Extended (-5°C to 85°C) | 0 to 70°C | 0 to 70°C |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
E
Elodie Nash
5
1000BASE-LX/LH SFP delivers dependable long-distance connectivity over SMF/MMF with DOM support.
F
Finn Carver
5
Professional-grade, easy deployment, stable throughput.
G
Giselle Park
5
Reliable module for enterprise backbone fiber links.
H
Harrison Drake
5
Durable and low-maintenance, ensures consistent signal quality.
I
Isla Reed
5
Ideal for long-distance network applications with high stability.
Questions & Answers
What is the Cisco GLC-LH-SMD?
Cisco GLC-LH-SMD is a 1000BASE-LX/LH SFP optical transceiver for 1 Gigabit Ethernet fiber links. It uses a 1310nm wavelength, supports Digital Optical Monitoring, and uses an LC connector. The module is designed for Cisco SFP ports that require long-reach 1G fiber connectivity over single-mode fiber or supported multimode fiber runs.
What does the GLC-LH-SMD model number mean?
GLC-LH-SMD identifies a Cisco Gigabit Ethernet SFP module for LX/LH fiber operation. LH indicates long-haul reach compared with short-reach SX optics, SM refers to single-mode fiber support, and D indicates Digital Optical Monitoring. The SKU helps buyers distinguish this 1310nm 10km fiber module from copper, short-range multimode, and extended-reach Cisco SFP models.
What hardware type is GLC-LH-SMD?
GLC-LH-SMD is an optical transceiver module, not a switch, router, cable, or license. It plugs into a compatible 1G SFP slot and converts the electrical signal from the host device into an optical signal for fiber transmission. The module provides the physical fiber interface for a Gigabit Ethernet port.
Where does GLC-LH-SMD sit in Cisco's SFP range?
GLC-LH-SMD sits in Cisco's 1G SFP optic range as the standard long-reach 1000BASE-LX/LH option. It sits above short-reach multimode modules such as GLC-SX-MMD and below longer single-mode options such as GLC-EX-SMD and GLC-ZX-SMD. It is selected when a 1G fiber link needs more reach than SX optics provide.
What form factor does GLC-LH-SMD use?
GLC-LH-SMD uses the SFP form factor for 1 Gigabit Ethernet interfaces. The module is hot-swappable in supported Cisco SFP ports, allowing replacement without shutting down the host platform when normal maintenance procedures are followed. It is not an SFP+, SFP28, QSFP, or copper RJ-45 module.
What data rate does GLC-LH-SMD support?
GLC-LH-SMD supports 1 Gigabit Ethernet operation for 1000BASE-LX/LH links. It is intended for Gigabit Ethernet SFP ports and should not be treated as a 10G SFP+ optic. Network teams use this SKU where the host platform, fiber plant, and connected endpoint all run a 1G optical Ethernet link.
What wavelength does GLC-LH-SMD use?
GLC-LH-SMD operates at a 1310nm wavelength. That wavelength matches 1000BASE-LX/LH optical design and supports longer 1G fiber runs than 850nm SX multimode optics. The 1310nm specification is important when matching optics at both ends of a link and when checking existing fiber plant documentation.
What reach and cable type does GLC-LH-SMD support?
GLC-LH-SMD supports up to 10km over standard single-mode fiber and up to 550m over multimode fiber under Cisco's 1000BASE-LX/LH guidance. Legacy multimode deployments may require a mode conditioning patch cable. Buyers should match the optic to OS1, OS2, OM3, or OM4 cabling based on the actual run and installation standard.
What connector does GLC-LH-SMD use?
GLC-LH-SMD uses an LC fiber connector, commonly described as dual LC for duplex transmit and receive strands. The connected patch lead must match the host panel and fiber plant, usually LC to LC or LC to another connector through structured cabling. Connector cleanliness remains critical because dust or contamination affects optical receive levels.
Which Cisco platforms are compatible with GLC-LH-SMD?
GLC-LH-SMD is used across supported Cisco products with 1G SFP ports, including many Catalyst, Nexus, ASR, ISR, and industrial Ethernet platforms. Exact support depends on the platform transceiver matrix, software release, and interface type. Network teams should validate the SKU against the specific switch or router before purchase.
What is GLC-LH-SMD used for?
GLC-LH-SMD is used for 1G fiber uplinks between switches, routers, aggregation devices, and remote network segments. It is commonly selected when copper Ethernet distance is too short and short-reach multimode optics do not provide enough range. The module gives compatible Cisco SFP ports a long-reach optical handoff.
What environment size suits GLC-LH-SMD?
GLC-LH-SMD suits campus, building-to-building, distribution, aggregation, and edge environments where a 1G fiber span reaches beyond typical copper limits. It is appropriate for smaller sites standardising on 1G uplinks and larger networks that still run stable Gigabit Ethernet fiber between access, distribution, and routing layers.
What workloads or scenarios suit GLC-LH-SMD?
GLC-LH-SMD suits general 1G Ethernet transport, management uplinks, access-to-distribution handoffs, routed edge links, and legacy platform refreshes that retain Gigabit SFP ports. It is not selected for 10G application backbones, high-density server access, or SFP+ ports unless the host platform explicitly supports 1G SFP operation in that slot.
Does GLC-LH-SMD work for inter-building fiber links?
GLC-LH-SMD is a common choice for inter-building 1G fiber links when the distance is within the 10km single-mode reach and the path uses the correct fiber grade. The same optic must normally be installed at both ends. Optical budgets, patch panels, splices, and connector condition should be reviewed before deployment.
Which specific Cisco product families use GLC-LH-SMD?
GLC-LH-SMD is commonly associated with Cisco Catalyst access and distribution switches, Nexus platforms with 1G SFP support, ASR routers, ISR routers, and Industrial Ethernet switches. Examples include Catalyst 2960-X, Catalyst 3560-X, Catalyst 3750-X, Catalyst 3850, Catalyst 4500-X, and ASR 1000 families when their Cisco support matrices list the module.
Which standards does GLC-LH-SMD integrate with?
GLC-LH-SMD aligns with 1000BASE-LX/LH Gigabit Ethernet operation and IEEE 802.3z 1000BASE-LX style deployment. It integrates at the physical layer through a Cisco SFP slot and presents a 1G fiber Ethernet interface to the host device. The module should be paired with matching optics and compatible fiber cabling.
Which fiber cabling should be used with GLC-LH-SMD?
GLC-LH-SMD is most commonly deployed over OS1 or OS2 single-mode fiber for long 1G links up to 10km. It also supports multimode fiber up to 550m under Cisco guidance, with mode conditioning considered for legacy multimode paths. The installed patch leads and panels must match the LC interface and link design.
How does DOM integration work on GLC-LH-SMD?
GLC-LH-SMD includes Digital Optical Monitoring, often shown as DOM or DDM in platform tools. Supported Cisco devices read optical transmit power, receive power, temperature, voltage, and bias current values from the transceiver. Those readings help engineers troubleshoot dirty connectors, fiber loss, weak optics, and marginal receive levels during maintenance.
How does GLC-LH-SMD compare with GLC-SX-MMD?
GLC-LH-SMD is the longer-reach 1000BASE-LX/LH option using 1310nm optics for up to 10km over single-mode fiber and up to 550m over multimode fiber. GLC-SX-MMD is the 1000BASE-SX multimode option using 850nm optics for shorter links. Buyers choose GLC-SX-MMD for short MMF runs and GLC-LH-SMD for longer 1G fiber paths.
How does GLC-LH-SMD compare with GLC-EX-SMD?
GLC-LH-SMD supports 1000BASE-LX/LH links up to 10km over single-mode fiber, while GLC-EX-SMD is the Cisco 1000BASE-EX option for longer 40km single-mode spans. GLC-LH-SMD fits campus and building links inside 10km. GLC-EX-SMD fits longer metro or extended campus fiber paths where the optical budget requires additional reach.
How does GLC-LH-SMD compare with GLC-ZX-SMD?
GLC-LH-SMD is a 1310nm 1000BASE-LX/LH SFP for 10km single-mode links, while GLC-ZX-SMD is a 1550nm 1000BASE-ZX SFP for approximately 70km single-mode links. GLC-ZX-SMD is selected only when the fiber span and optical budget exceed LH reach. GLC-LH-SMD remains the simpler choice for standard 10km 1G links.
How does GLC-LH-SMD compare with GLC-T?
GLC-LH-SMD provides a 1G optical LC fiber interface for 1000BASE-LX/LH links, while GLC-T provides a 1G copper RJ-45 interface for 1000BASE-T Ethernet over twisted-pair cabling. GLC-T suits short copper runs up to 100m. GLC-LH-SMD suits fiber uplinks, longer distances, and electrically isolated building connections.
Is GLC-LH-SMD available in new and refurbished condition?
GLC-LH-SMD is typically sourced in both new and certified refurbished condition through enterprise hardware resellers such as ORM Systems. New units suit standard procurement requirements, while refurbished units support cost-controlled spares, replacements, and project rollouts. Buyers should confirm requested condition, packaging, quantity, and warranty terms at quote stage.
What is the price of Cisco GLC-LH-SMD?
GLC-LH-SMD price depends on condition, quantity, market availability, and whether the order requires new retail, new surplus, or certified refurbished stock. ORM Systems lists the SKU for quote-based buying because enterprise optics pricing changes with volume and sourcing channel. Bulk requirements usually receive better unit pricing than one-off replacement orders.
Is GLC-LH-SMD end-of-life or still available?
GLC-LH-SMD is a mature Cisco 1G SFP module that remains widely traded for installed Cisco networks. Current production, end-of-sale, or last-support status should be checked against Cisco lifecycle notices for the exact part number and region. ORM Systems can help buyers source replacements where installed platforms still require this optic.
What lead time applies to GLC-LH-SMD orders?
GLC-LH-SMD lead time depends on requested condition, quantity, warehouse location, and whether the buyer needs original Cisco stock or certified refurbished stock. Small replacement quantities are often easier to source than large rollout quantities. ORM Systems provides lead-time confirmation during quoting so procurement teams can plan maintenance windows and rollout dates.
Are bulk discounts available for GLC-LH-SMD?
Bulk discounts are commonly available for GLC-LH-SMD when buyers request multiple units for spares, network refreshes, or multi-site deployments. Quantity, condition, and delivery schedule influence the final unit price. ORM Systems supports volume quotation for enterprise buyers that need consistent optics across multiple Cisco switches, routers, or stocked maintenance kits.
What warranty is available with GLC-LH-SMD from ORM Systems?
GLC-LH-SMD purchased from ORM Systems is offered with warranty options that may extend up to 3 years depending on condition and quotation terms. Warranty coverage supports buyers who need predictable replacement handling for production network optics. The final warranty period should be confirmed on the formal quote or invoice before ordering.
How are refurbished GLC-LH-SMD modules tested before dispatch?
Refurbished GLC-LH-SMD modules should be tested for Cisco recognition, link establishment, DOM visibility, optical transmit and receive behavior, and physical connector condition before dispatch. ORM Systems certified refurbished stock is positioned for production replacement use, so testing helps reduce the risk of failed maintenance windows and mismatched transceiver orders.
Which certifications or compliance points matter for GLC-LH-SMD?
GLC-LH-SMD aligns with 1000BASE-LX/LH Gigabit Ethernet operation and Cisco SFP platform requirements. Buyers should check IEEE 802.3z compatibility, optical safety labeling, and host-platform support before deployment. For regulated procurement, the exact compliance documentation should be requested with the quote, especially when original Cisco paperwork is required.
How is GLC-LH-SMD installed for first use?
GLC-LH-SMD is inserted into a compatible Cisco 1G SFP port, then connected to a clean LC duplex fiber patch lead. The interface is brought up with the correct speed, duplex, VLAN, trunk, or routed-port configuration on the host device. Engineers then verify link status, DOM readings, and optical receive levels.
Does GLC-LH-SMD require a separate license or software?
GLC-LH-SMD does not require a separate transceiver license in normal Cisco SFP deployments. The host switch or router must run software that supports the module and interface type. Some platforms enforce Cisco transceiver validation, so procurement teams should check software release notes and the official compatibility matrix before buying.
What tools or accessories are needed with GLC-LH-SMD?
GLC-LH-SMD deployments usually require compatible LC duplex patch leads, the correct single-mode or multimode fiber plant, clean fiber connectors, and an SFP-capable Cisco host port. A fiber inspection scope, cleaning kit, optical power meter, and documented link budget help engineers validate longer runs and troubleshoot low receive power.
Where can buyers purchase GLC-LH-SMD in the UK?
Buyers can purchase Cisco GLC-LH-SMD through ORM Systems for UK procurement requirements, including replacement optics, spare stock, and larger network refresh quantities. ORM Systems supports quote-based sourcing for new and certified refurbished units. The SKU, required condition, quantity, and delivery location should be included in the quote request.
Does ORM Systems ship GLC-LH-SMD internationally?
ORM Systems supports international sourcing and shipping for GLC-LH-SMD, subject to stock availability, destination, export requirements, and courier options. International buyers should provide the SKU, quantity, condition preference, delivery country, and required timeline. The quote confirms product availability, shipping cost, lead time, and any documentation required for dispatch.