Fiber Optics Solutions

ponedjeljak, 18.05.2015.

SFP Transceiver Signals and Types

Small form-factor pluggable transceiver - Signals

The SFP transceiver holds a Printed track Board that partners with the SFP electronic connector in the service configuration.

Base Transceiver Station

A "base transceiver station" (BTS) is a bit of outfits that eases wireless information exchange amid exploiter out fits (UE) and a network. UEs are implements like protable telephones (handsets), Wireless native loop telephones, computers with wireless Internet connectivity.

The network may be that of whatever of the wireless information exchange applications of tools and methods like GSM, CDMA, wireless native circle, WIFI, WiMAX either different ample zone network (WAN) technics.

BTS is as well referenced to like the broadcast center facility (RBS), point B(in 3G Networks) either, plainly, the center facility (BS). For conversation of the 3GPP Long TERM Evolution normal the shortening EnodeB for developed point B is extensively applied.

Though the expression BTS may be appropriate to whatever of the wireless information exchange norms, it is normally related with portable information exchange applications of tools and methods like GSM and CDMA. In this heed, a BTS forms piece of the center facility self-contained system within larger system (BSS) elaborations for configuration administration. It might as well have outfits for encrypting and decrypting information exchanges, range filtrating implements (band go filters), etcetera. Antenas might as well be deemed like parts of BTS in common feel as they some dissimilar turnaround and dissimilar areas of the cell (in the situation of sectorised center stations). A BTS is managed by a progenitor center facility regulator by way of the center facility command purpose (BCF). The BCF is executed like a separate component either even integrated in a TRX in firm center stations. The BCF delivers a transactions and upkeep (OM) link to the network administration configuration (NMS), and organizes operative states of every one TRX, as well like code managing and alert gathering. The fundamental construction and purposes of the BTS stays the similar notwithstanding of the wireless technologies.

RF module - Transceiver modules

An RF Transceiver component includes either a sender and recipient. The track is characteristically developed aimed at Half-duplex working, though Full twofold components are accessible, characteristically at a developed outlay expected to the appended difficulty.

Small form-factor pluggable transceiver - Types

SFP transmitters and receivers are accessible with a diversity of sender recipient kinds, permitting consumers to choose the suitable transceiver for every one link to supply the needed ocular get to over the accessible ocular fiber sort (e.g. Multi-mode fiber either single-mode fiber). Optical SFP components are normally accessible in some dissimilar categories:

For multi-mode fiber, with black either ecru removal lever

SX - 850nm, for a greatest of 550m at 1.25Gbit/s (Gigabit Ethernet) either 150m at 4.25Gbit/s (Fibre Channel). Related product: 1000BASE SX SFP.

For single-mode fiber, with azure removal lever

• LX - 1310nm, for spaces up to 10km (e.g. Cisco GLC-LX-SM-RGD).


• EX - 1310nm, for spaces up to 40km.


• ZX - 1550nm, for spaces up to 80km.


• EZX - 1550nm, for spaces up to 120km.



• BX - 1490nm/1310nm, Single Fiber Bi-Directional Gigabit SFP Transceivers, matched as "BS-U" and "BS-D" for Uplink and Downlink correspondingly, as well for spaces up to 10km. Variations of bidirectional SFPs are as well produced that employ 1550nm in one management.


• 1550nm 40km (XD), 80km (ZX), 120km (EX either EZX)


• SFSW - Single Fiber Single Wavelength transmitters and receivers, for bi-directional SFPs are a sole fiber. Coupled with CWDM, those duple the flow thickness of fiber ties.


• CWDM and DWDM transmitters and receivers at different wavelengths attaining different greatest distances.

For cuprum twisted couple cabling

1000BASE-T (e.g. GLC-T 1000BASE-T SFP) - those components integrate important circuitry and may solely be applied aimed at Gigabit Ethernet, as that is the user interface they use. They are not harmonious with (or rather: do not have coequals for) Fibre delivery method either SONET.

More related articles about SFP transceiver modules: Optical Transceivers Wiki

Oznake: SFP Transceiver, 1000base-t sfp, GLC-T

petak, 27.03.2015.

SFP Module Removal and Installation Tutorial

Be Aware of Before Installing or Removing A Transceiver module

Before removing or installing a SFP Transceiver Module you must disconnect all cables, because of leaving these attached will damage the cables, connectors, and the optical interfaces. At the same time please be aware that do not often remove and install an SFP transceiver and it can shorten its useful life. For this reason transceivers should not be removed or inserted more often than is required.

Furthermore, transceiver modules are sensitive to static, so always ensure that you use an ESD wrist strap or comparable grounding device during both installation and removal.

Required Tools

You will need these tools to install the SFP transceiver module:

1. Wrist strap or other personal grounding device to prevent ESD occurrences.

2. Antistatic mat or antistatic foam to set the transceiver on.

3. Fiber-optic end-face cleaning tools and inspection equipment.

Complete These Steps in Order to Install A SFP Transceiver

1. Attach an ESD-preventive wrist strap to your wrist and to the ESD ground connector or a bare metal surface on your chassis.

2. Remove the SFP Transceiver Module from its protective packaging.
Note: Do not remove the optical bore dust plugs until directed to do so later in the procedure.

3. Check the label on the SFP transceiver body to verify that you have the correct model for your network.

4. Find the send (TX) and receive (RX) markings that identify the top side of the SFP transceiver.
Note: On some SFP transceivers, the TX and RX marking might be replaced by arrowheads that point from the SFP transceiver connector (transmit direction or TX) and toward the connector (receive direction or RX).

5. Position the SFP transceiver in front of the socket opening.
Note: Different Cisco devices have different SFP module socket configurations. Your Cisco device could have either a latch-up or a latch-down orientation. Ensure that you are installing the SFP transceiver in the correct orientation for your Cisco device. Refer to the hardware installation instructions that came with your Cisco device for more details.

6. Insert the SFP transceiver into the socket until you feel the SFP Transceiver Module connector snap into place in the socket connector.

7. Remove the dust plugs from the network interface cable LC connectors. Save the dust plugs for future use.

8. Remove the dust plugs from the SFP transceiver optical bores.

9. Immediately attach the network interface cable LC connector to the SFP transceiver.

10. Connect the 1000BASE-T SFP transceivers to a copper network.

Caution: In order to comply with GR-1089 intrabuilding lightning immunity requirements, you must use grounded, shielded, twisted-pair Category 5 cabling.

Complete These Steps in Order to Connect the Transceivers to A Copper Network:

A Copper SFP transceiver (1000BASE-T SFP) is shown in following Figure:

a. Insert the Category 5 network cable RJ-45 connector into the SFP transceiver RJ-45 connector.

b. Insert the other end of the network cable into an RJ-45 connector on a 1000BASE-T-compatible target device.

11. Observe the port status LED:

• The LED turns green when the SFP transceiver and the target device have an established link.


• The LED turns amber while STP discovers the network topology and searches for loops. This process takes about 30 seconds, and then the LED turns green.


• If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be a problem with the adapter installed in the target device. Refer to the Troubleshooting section of your switch hardware guide for solutions to cabling problems.


• Reconfigure and reboot the target device if necessary.

Complete These Steps in Order to Remove SFP Transceiver

1. Attach an ESD-preventive wrist strap to your wrist and to the ESD ground connector or a bare metal surface on your chassis.

2. Disconnect the network fiber-optic cable or network copper cable from the SFP Transceiver Module connector.

3. For optical SFP transceivers, immediately reinstall the dust plugs in the SFP transceiver optical bores and the fiber-optic cable LC connectors.

Release and Remove the SFP Transceiver Module from the Cocket Connector.

If the SFP transceiver has a Mylar tab latch, pull the tab gently in a slightly downward direction until the transceiver disengages from the socket connector, and then pull the SFP transceiver straight out. Do not twist or pull the Mylar tab because you could detach it from the SFP transceiver.

If the SFP transceiver has an Actuator button latch, gently press the actuator button on the front of the SFP transceiver until it clicks and the latch mechanism releases the SFP transceiver from the socket connector. Grasp the actuator button between your thumb and index finger, and carefully pull the SFP transceiver straight from the module slot.

If the SFP transceiver has a Bale-clasp latch, pull the bale out and down to eject the SFP transceiver from the socket connector. If the bale-clasp latch is obstructed and you cannot use your index finger to open it, use a small flat-blade screwdriver or another long narrow instrument to open the bale-clasp latch. Grasp the SFP transceiver between your thumb and index finger, and carefully remove it from the socket.

Fiberstore is a professional OEM manufacturer and supplier of optical networking solutions. Fiberstore provides a full set of comaptible fiber optic transceiver module solution cover all the famous brands, such as Cisco, HP, Finisar and so on. Especially, you can find a full product line of our New Cisco SFP modules, such as GLC-LX-SM-RGD, SFP-GE-T, GLC-SX-MMD, etc. For more Tutorials about Optical Transceivers please visit: Fiberstore Optical Transceiver Tutorials.

Oznake: SFP module, 1000base-t sfp

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