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Cisco GLC-SX-MMD 1000BASE-SX short wavelength; with DOM

Brand: Cisco
Part Number: GLC-SX-MMD
UPC: 882658340895
Condition: Factory New Sealed
Availability: In Stock
Shipping: Fast Shipping Across Canada
Delivery: Typically within 2 Business Days
Warranty: 3 Years

C$ 165.95

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The industry-standard Cisco Small Form-Factor Pluggable (SFP) Gigabit Interface Converter links your switches and routers to the network. The hot-swappable input/output device plugs into a Gigabit Ethernet port or slot. Optical and copper models can be used on a wide variety of Cisco products and intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-EX, 1000BASE-ZX, or 1000BASE-BX10-D/U on a port-by-port basis.

Features and benefits

Hot swappable to maximize uptime and simplify serviceability
Flexibility of media and interface choice on a port-by-port basis, so you can “pay as you populate”
Robust design for enhanced reliability
Supports Digital Optical Monitoring (DOM) capability

1000BASE-SX SFP for multimode fiber only

The 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 μm multimode fiber links up to 550 m and on 62.5 μm Fiber Distributed Data Interface (FDDI)-grade multimode fibers up to 220 m. It can support up to 1km over laser-optimized 50 μm multimode fiber cable.

Specifications

Product Number: GLC-SX-MMD
Product Description: 1000BASE-SX short wavelength; with DOM
Connector: Dual LC/PC connector
Wavelength: 850nm
Fiber: MMF
Operating Distance(m):

275 (902 ft) @ OM1
550 (1,804 ft) @ OM2
1000 (3281 ft) @ OM3
1000 (3281 ft) @ OM4
1000 (3281 ft) @ OM5

Transmit Power Range (dBm): -3 to -9.5
Receiver Power Range (dBm): 0 to -17
Wavelength Range (nm): 770 to 860
Dimensions: (H x W x D): 8.5 x 13.4 x 56.5 mm
Operating temperature range: Extended temperature range (EXT): -5°C to 85°C (23 to 185°F)
Storage temperature range: -40 to 85°C (-40 to 185°F)
DOM: Yes

Platform support

ASA5500 Series Appliances
ASR 901 and 903 Series Routers
ASR 1000, 9000, and 9000v Series Routers
Catalyst Express 500 and Express 520
Catalyst 2350 and 2360 Series
Catalyst 2900, 2940, 2950, 2960, 2960-Plus, 2960-C, 2960-S, 2960-SF, 2960-X Series
Catalyst 2970 and 2975 Series
Catalyst 3000 and 3100 Blade Switches
Catalyst 3500XL Series
Catalyst 3550, 3560, 3560-C, 3560-E, 3560-X Series
Catalyst 3750-E Series, 3750 Metro, 3750-X Series
Catalyst 3850 Series
Catalyst 4500 and 4500-X Series
Catalyst 4900 Series
Catalyst 6000 Series
Catalyst 6800 Series
Cisco 1941 Series Router
Cisco 2600, 2800, 2900 Series Router
Cisco 3200, 3600, 3700 Series Router
Cisco 4400 Series Router
Cisco 5700 Series Wireless LAN Controller
Cisco 6400 Universal Access Router
Cisco uBR7200 Series
Cisco 7200, 7300, 7500, and 7600 Series Routers
Cisco 10000 and uBR 10000 Series Routers
Cisco 10700 Series Internet Router
Cisco 12000 Series Router
Cisco 2000 Connected Grid Router Series
Cisco 2500 Connected Grid Switch Series
Cisco IE2000 and IE2000U Series
Cisco IE3010 Series
Cisco MDS 9000
Cisco ME 2400
Cisco ME 2600X
Cisco ME 3400
Cisco ME 3600X and ME 3800X
Cisco ME 4600 and ME 4900 Series
Cisco ME 6500 Series
Cisco MWR 2941 Mobile Wireless Router
CRS Router Series
CSS 11500 Series
Cisco RF Gateway Series
NAM 2200 Series Appliances
Nexus 2000, 3000, 4000, 5000, 7000, 9000, 9300, 9500 (modular) Series

GLC-SX-MMD

This GLC-SX-MMD is 100% genuine Cisco product. It won't have any compatibility problem with your Cisco devices. And the Cisco GLC-SX-MMD 1000BASE-SX short wavelength; with DOM is factory new with original packaging. Buy it now and enjoy risk free purchase with fast worldwide delivery from GenuineModules.com

Jonathan Carter	04/28/2026 EDT
Rock-solid SX optics. The D version has DOM, which is actually useful for checking fiber health. No compatibility headaches, no weird errors. If you need 1G multimode, this is the go-to. 5

Matthew Garcia	03/10/2026 EDT
These GLC-SX-MMDs are in every rack I touch. Perfect for multimode runs in the building. DOM gives you accurate light levels for troubleshooting. They just work. 5

David H Seay	04/08/2025 EDT
Is brand new optics and work just as expected. 5

Not OEM	02/19/2025 EST
The SFPs turned out to be third-party, not OEM. Last time I ordered from the same webpage, the SFPs were genuine. You take your chances. I'm sending them back. 5

Jeffrey	09/14/2024 EDT
I highly recommend the GLC-SX-MMD transceiver module. I have been using it in my network setup, and it has consistently provided exceptional performance. I am impressed with its durability and ease of use. 5

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Will the Cisco GLC-SX-MMD work with my Cisco switch or router?

Yes, the Cisco GLC-SX-MMD is a 1000BASE-SX SFP designed for Gigabit Ethernet ports that support Cisco SFP modules. It works with many Cisco Catalyst, Nexus, ASR, ISR, MDS, and ASA platforms listed in the compatibility guide. Always confirm your exact switch or router model and port type before ordering.

What fiber cable and maximum distance does the GLC-SX-MMD support?

This SFP uses multimode fiber only and requires a dual LC/PC connector. It supports 850nm short-wavelength optics, with typical distances up to 220m on 62.5m fiber, 550m on legacy 50m multimode fiber, and up to 1km on laser-optimized OM3/OM4/OM5 multimode fiber.

How do I install the Cisco GLC-SX-MMD SFP module?

Installation is simple: insert the hot-swappable GLC-SX-MMD into a compatible SFP port, then connect your LC multimode fiber patch cable. No power-down is usually required. After installation, verify link status and check DOM readings in your Cisco interface commands if needed.

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GLC-SX-MMD Datasheet

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