Cisco SFP Modules for Gigabit Optical Ethernet SFP GLC-LH-SM For Sale

Cisco SFP Modules for Gigabit Optical Ethernet SFP GLC-LH-SM
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Cisco SFP Modules for Gigabit Optical Ethernet SFP GLC-LH-SM:
$25.50

Cisco SFP Modules for Gigabit Optical Ethernet SFP GLC-LH-SM

**BRAND NEW IN THE BOX - NEVER USED OR OPENED** - Quantity Remaining (4) Four


Cost-effective Small Form-factor Pluggable (SFP) transceivers for Gigabit Ethernet applications

Product Overview

The industry-standard Cisco®Small Form-Factor Pluggable (SFP) Gigabit Interface Converter (Figure 1) 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.

Figure 1.Cisco Optical Gigabit Ethernet SFP

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.

1000BASE-BX10-D and 1000BASE-BX10-U SFP for Single-Fiber offerirectional Applications

The 1000BASE-BX-D and 1000BASE-BX-U SFPs, compatible with the IEEE 802.3ah 1000BASE-BX10-D and 1000BASE-BX10-U standards, operate on a single strand of standard SMF.

A 1000BASE-BX10-D device is always connected to a 1000BASE-BX10-U device with a single strand of standard SMF with an operating transmission range up to 10 km.

The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices as depicted in Figure 2: 1000BASE-BX10-D transmits a 1490-nm channel and receives a 1310-nm signal, whereas 1000BASE-BX10-U transmits at a 1310-nm wavelength and receives a 1490-nm signal. As shown, the presence of a wavelength-division multiplexing (WDM) splitter integrated into the SFP to split the 1310-nm and 1490-nm light paths.

Figure 4.offerirectional Transmission of a Single Strand of SMF




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