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Position：Home / Products / Networking Accessories / Modules & Cards / Cisco Optics Modules

  • GLC-ZX-SMD
  • GLC-ZX-SMD

GLC-ZX-SMD

Model:GLC-ZX-SMD Cisco SFP
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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.

Cisco GLC-ZX-SMD in 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

Product

Wavelength (nm)

Fiber Type

Core Size (μm)

Modal Bandwidth (MHz* Km)*

Operating Distance (m)

1000BASE-SX

850

MMF

62.5

160 (FDDI-grade)

220 (722 ft)

62.5

200 (OM1)

275 (902 ft)

50

400 (400/400)

500 (1,640 ft)

50

500 (OM2)

550 (1,804 ft)

50

2000 (OM3)

1000 (3281 ft)

1000BASE-LX/LH

1310

MMF*

62.5

500

550 (1,804 ft)

50

400

550 (1,804 ft)

50

500

550 (1,804 ft)

SMF

-

-

10,000 (32,821 ft)

1000BASE-EX

1310

SMF

-

-

40,000 (131,234 ft)

1000BASE-ZX

1550

SMF

-

-

Approximately 70 km depending on link loss

1000BASE-BX-U

1310

SMF

-

-

10,000 (32,821 ft)

1000BASE-BX-D

1490

SMF

-

-

10,000 (32,821 ft)

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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Specification

GLC-ZX-SMD Specifications
Wavelength (nm) 1550
Fiber Type SMF
Core Size (μm) -
Modal Bandwidth (MHz* Km)*** -
Operating Distance (m) Approximately 70 km depending on link loss
Transmit Power Range (dBm) +5 to 0
Receive Power Range (dBm) -3 to -23
Maximum Channel insertion loss in dB (by fiber type)* 21 (any SMF)
Transmit and Receive Wavelength Range (nm) 1500 to 1580
Dimensions (H x W x D) 8.5 x 13.4 x 56.5 mm
Operating temperature range

Commercial temperature range (COM): 0 to 70°C (32 to 158°F)

Extended temperature range (EXT): -5°C to 85°C (23 to 185°F)

Industrial temperature range (IND): -40 to 85°C (-40 to 185°F)

Storage temperature range: -40 to 85°C (-40 to 185°F)
Power requirements

up to 1W per SFP port
Temperature Range EXT
DOM Yes
* 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.
*** Specified at transmission wavelength.
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