Significant Discoveries about Cisco SFP Transceiver Modules-seesuo

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Significant Discoveries about Cisco SFP Transceiver Modules

2016-08-18

Type Of Definition SFP Transceiver Cisco Transceiver

Cisco System, Inc. established in 1984, is an international reputable company providing internet solutions, equipment and software products, whose products are mainly used to connect a computer network system, Cisco routers, switches and other equipment carries 80% of global Internet communications, of the new economy in the Silicon Valley legend. Over the past 20 years, Cisco has almost become synonymous with the Internet, network applications, productivity, Cisco have become the market leader in every area of its entry. The company is also specialized in producing transceiver modules include a well advanced and useful type of transceiver namely mini GBIC or SFP module.

SFP is the abbreviation of Small Form Factor Pluggable referring to a compact small and hot-pluggable transceiver. Cisco SFP transceivers are designed to change the series electric signals to the serial optical signals for either telecommunication or data communication fields. The transceiver is usually working with a network device a switch or a router to connect to a copper networking cable or fiber optic. SFP is a recognized industry standard thus is supported by almost every leading vendors such as H3C, HP, Huawei. It is designed to support communication in standards such as Gigabit Ethernet, SONET, Fibre Channel and many others.

SFP Transceiver

The main parameters of the SFP module

Average transmit optical power (TxLOP: Optical Average Power) average transmit optical power refers to the signal logic 1 when the optical power and for 0:00 the arithmetic mean of the optical power. P0 + the P1 PAVG = 2 (dBm)
Consumers light ratio (ER: ExtinctiRatio) signal logic to 1, the optical power and is 0 when the light power size ratio. The calculation formula for: P1ER = 10log P0 (dB) ER extinction ratio, the unit is dB, P1 and P0 represents the logic 1 and 0 when the optical power.
The minimum average light reception sensitivity (Receiver Sensitivity) measure the receiving end of a certain bit error rate (1 × 10exp (-12)) To ensure the desired reception power, in units of dBm. BER is within a longer period of time, after received after the receiving side of the photoelectric conversion error output terminal of the number of symbols with the BER tester gives the ratio of the number of symbols.
Loss indicative signal (LOS Assert) restore instruction (LOS Dessert) receiver output an electric signal, and the signal is lost and the potential level of the adequacy reflects the intensity of the optical signal received by the receiver, to determine by comparing the potential of the preset potentiometer light whether the signal is lost. Potential has a certain effect hysteresis comparator to achieve, usually default electrical signal corresponding to the optical power as an indication, in dBm
Eye mask margin (EMM: Eye Mask Margin) eye opening, refers to the degree of “open” in the best sampling point eye amplitude distortion-free opening of the eye diagram should be 100 [%]. Eye diagram template tolerance eye mask expansion, until the eye diagram of the sampling points into the template of the biggest expansion of the expansion area percentage.

Cisco SFP is flexible in its extensive set of items including Cisco GLC-T, Cisco GLC-SX-MM, Cisco GLC-LH-SM, Cisco GLC-ZX-SM, which can be used with the union of 1000BASE-T, 1000BASE-SX, 1000BASE- LX/LH, 1000BASE-EX, 1000BASE-ZX, or 1000BASE-BX10-D/U in a port-by-port basis.

1000BASE-T SFP for Copper networks operate on garden variety Category 5 unshielded twisted pair copper cabling. Cisco 1000BASE-T SFPs are capable of up to 100m (328 ft) link lengths. Cisco 1000BASE-T SFP modules support 10/100/1000 autonegotiation and Auto MDI/MDIX.

1000BASE-SX SFP is used only for the purposed of the multimode optical fiber. 1000BASE-SX SFP is fully compatible with IEEE802.3z 1000BASE-SX standard. 1000BASE-SX SFP traditional 50 microns of multimode optical fiber link is 550 meters high and 62.5 micron fiber distributed data interface (FDDI) multimode optical fiber is up to 220 meters.

Used for 1000BASE-LX/LH SFP single mode and multimode optical fiber application. Compatible with IEEE802.3z 1000BASE-LX standard 1000BASE-LX/LH SFP. the SFP operating cycle standard single mode fiber optic link up to 10 km, 550 meters of any of the multimode optical fiber. When using the traditional type of multimode optical fiber, transmitter should adjust cable and through the model.

1000BASE-EX SFP is designed for long-reach, single mode fiber can reach 40 km long. A 5 dB should be inserted between the inline optical attenuator of the fiber optic cable on each side of the receiving port of SFP backend on the link to the connections on the back.

1000BASE-ZX SFP is used for long distance, about 70km length of single mode fiber application. SFP optical link budget of the 23 decibels, but the exact link span depends on multiple factors, such as fiber optic connector, the quality, quantity and connector.

1000BASE-BX10-D and 1000BASE-BX10-U SFP of single fiber bi-directional applications and compatibility in accordance with IEEE 802.3ah 1000BASE-BX10-D and 1000BASE-BX-10-U standards. 1000BASE-BX10-D SFP operate on a single strand of standard SMF.

Cisco GLC-LH-SM

The GLC-LH-SM is a Cisco 1000Base SFP Optical Transceiver. Cozlink’s GLC-LH-SM transceivers perform identically to Cisco® brand transceivers. Our transceivers are programmed with the same data as Cisco transceivers, making them fully compatible with OEM networking equipment. Cozlink’s GLC-LH-SM is 100% Multi-Source Agreement compliant, allowing it to also function with other third party MSA compliant networking equipment. All of Cozlink's transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance.

GLC-LH-SM