GLC-ZX-SMD Cisco SFP Module

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.

1000BASE-T SFP for copper networks The 1000BASE-T SFP operates on standard Category 5 unshielded twisted-pair copper cabling of link lengths up to 100 m (328 ft). Cisco 1000BASE-T SFP modules support 10/100/1000 auto negotiation and Auto MDI/MDIX.

GLC-ZX-SMD Overview

Cisco GLC-ZX-SMD is a 1000BASE-ZX SFP for Long-Reach Single-Mode Fiber. The 1000BASE-ZX SFP operates on standard single-mode fiber-optic link spans of up to approximately 70 km in length. The SFP provides an optical link budget of 21 dB, but the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors.

When shorter distances of single-mode fiber (SMF) are used, it might be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver. A 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP at each end of the link whenever the fiber-optic cable span loss is less than 8 dB.

Product Details

Figure 1 shows the GLC-ZX-SMD can be installed in the switch.

Table 1 provides cabling specifications for the SFPs that you install in the Gigabit Ethernet port.

Note that all SFP ports have LC-type connectors, and the minimum cable distance for all SFPs listed (multimode and single-mode fiber) is 6.5 feet (2 m).

SFP Port Cabling Specifications

Note:

*A mode-conditioning patch cord, as specified by the IEEE standard, is required regardless of the span length. Note how the mode conditioning patch cord for 62.5-μm fibers has a different specification from the mode-conditioning patch cord for 50-μm fibers.

**ITU-T G.652 SMF as specified by the IEEE 802.3z standard.

***Specified at transmission wavelength.

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What platforms does it support?

Almost all Cisco platforms which have SFP ports can use this SFP Module

What is the difference between LH and LX modules?

The 1000BASE-LX, 1000BASE-LH and 1000BASE-LX/LH all refer to Gigabit Ethernet transmission. Among them, the 1000BASE-LX is a standard specified in IEEE 802.3 Clause 38 which uses a long wavelength laser, while the 1000BASE-LH and 1000BASE-LX/LH are just terms widely used by many vendors. Long Haul (LH) denotes longer distances while Long Wavelength (LX) denotes less energy which is obviously shorter distance. The 1000BASE-LX SFP modules compatible with the IEEE 802.3z 1000BASE-LX standard can achieve a distance up to 10km over single mode fiber. Unlike 1000BASE-LX SFP modules, 1000BASE-LH SFP modules operate at a distance up to 70km over single mode fiber.

Can 1000BASE-LX be compatible with 100BASE-LX?

1000BASE-LX and 100BASE-LX are very different standards. 1000BASE-LX SFP (GLC-LH-SMD) and 100BASE-LX SFP (GLC-FE-100LX) are two module types, one for GE and one for FE slots. The GLC-LH-SMD does not operate at 100Mbps. You will need to use a 100Mb module to connect to another device at 100Mb. Check optical transceiver compatibility with your equipment by reviewing the Cisco Fast Ethernet SFP module compatibility document and choose the one it says is compatible.

Is your product original?

Yes, our product is original, we only sell original Cisco product.

What’s the warranty of your products?

We can provide 1 years warranty, Click Product Inventory list

what’s the MOQ for your products?

1piece.

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Pre T/T or paypal or west union or Alibaba Trade Assurance order.

What’s the package?

Original packing. For the outside, we will pack it in an empty box to protect from damaged during transportation, and ensure you will receive the goods in good condition.

Delivery

Cargo will be delivered within 2 day after payment arrived. Tracking Number will be offered once delivery done.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.

Delivery Options	Estimated Delivery Time
DHL	2-7 business days
Fedex	2-7 business days
Hong Kong EMS	5-12 business days
Hong Kong Air Parcel	10-20 business days
By Sea	10-20 business days

Notice:

Above mentioned information are just for your reference only,we will keep you posted for the tracking delivery schedule.There are two delivery options available for by air and by sea:

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Item conditions are “New Sealed”.

Standard Hardware Warranty Policy:

Original new sealed Cisco product: 1 Year

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