Cisco  / GLC-SX-MMD / SFP ( Mini - GBIC ) Transceiver Multi Mode Gigabit ( Original )

Cisco / GLC-SX-MMD / SFP ( Mini - GBIC ) Transceiver Multi Mode Gigabit ( Original )

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GLC-SX-MMD Overview

The GLC-SX-MMD 1000BASE-SX SFP is made 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. 850-nm wavelength, extended operating temperature range and DOM support, dual LC/PC connector.

The table 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

(GLC-SX-MMD)

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

(GLC-LH-SMD)

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

(GLC-ZX-SM )

(GLC-ZX-SMD )

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)

*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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GLC-SX-MMD Specification

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

(GLC-ZX-SMD)

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)


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