2011年12月15日星期四

Fiber Optic Tools—essential for fiber optic equipment and devices

Fiber optic tools play an important role in the fiber optic installation and maintenance works. There are splicing fiber optic tools, test fiber optic tools and cleaning fiber optic tools.

Splicing fiber optic tool is used in the fiber optic splicing which is to melt the bare optical fiber together. Typical splicing fiber optic tools include fiber optic cleaver, fusion splice, fiber splice protection sleeves, heat oven etc. And there are also some indispensable general little tools: network plug crimping tool, fiber optic pliers, fiber optic stripper, cable splitter, punch down tool, fiber optic cutter, screwdriver and so on.

Test fiber optic test tool is used to inspection the fiber optic equipment during the production or for trouble shooting. Typical test fiber optic tools include fiber optic power meter, light sources, fault locator, optical identifier and optical time domain reflectometer. There are also general little tools as LAN network cable tester, network wire cable tester line tracker and so on.
Fiber optical cleaning tool is used to clean the dirt, oil, dust and other contaminants to maintain the fiber optic devices performance. Typical cleaning fiber optic tools include fiber optic cleaners for connectors and ferrules, alcohol and wipes, etc.

To make the work easier, there are fiber optic tool kits which put together a certain type of fiber optic tools into the kit. The tools used in the kits are houghtfully assembled and are stored in high-quality cases, keeping them safe, neat and in proper working order.

Keyword fiber optic tools, fiber optic equipment.

2011年12月12日星期一

10Gbps sfp+ optical transceiver module available now

As mainstream manufacturers and suppliers of Optic electronic active devices, FiberStore's 10Gbps sfp+ optical transceiver products through the adoption of rigorous product testing within the company,the fiber optic transceiver sample has recently obtained a good test results from large customers at home and abroad , some products have been successively into small quantities and quantities availability.

With the module from the chip to the device and the advantages of vertical integration, FiberStore's new 10Gbps sfp+ transceiver module products with high-power, heat dissipation, high sensitivity and low cost, SFP-10G-SR products were used SFP + metal package. This series of products with good performance to meet the requirements of IEEE and the national standard, in line with RoHS & WEEE Directive.

As with standard complete, meet E / GPON network for a smooth upgrade, build a unified system of next-generation PON technology advantages, 10Gbps EPON systems and equipment in recent years has been staged in the Asia-Pacific, Europe and America has been greatly developed and applied. FiberStore is the industry's few 10Gbps EPON optical device / module solutions provider, the company is committed to 10Gbps EPON technology continues to move forward and cost-effective suppression, broadband access networks to promote global sustainable development and integration of applications.

At present, FiberStore's 10Gbps sfp+ optical module product development and testing has been completed ,in the near future will also launch 100Gbps optical modules.

2011年12月11日星期日

Talk about one-strand fiber links at full-duplex

I suppose that you are talking about WDM (Wavelength-division multiplexing) using SFP. The bandwith available for a single strand of fibre is bounded only by the money : quoting a figure from a telecom vendor 80*40Gb on a fiber for a transport network dwdm device.
Using cisco as a reference , i find that the maximum bandwith available for non-telco dwdm is 1G ( 10G coming ). The advantage for the provider is that using DWDM it doubles the available optic fiber for connections. For the consumer , there is no advantage nor any disadvantage , since it is 'transparent'.

The two solution already mentioned (DWDM & single-core-SFPs) are both methods of getting multiple signals down a single strand of fiber.

As Haakon said, single-core-SFPs work in pairs and just replaces your normal SFP/GBIC modules in standard network equipment. And as cavver said, DWDM is another method. DWDM though is more complex, requires separate pieces of equipment and is much more expensive.

The advantages are that you can get more data down the same infrastructure allow you to double (at least) your bandwidth. [DWDM gear can carry multiple signals (160+ channels) over a single piece of fiber and can intermix data and voice traffic.]

The disadvantages are you may sacrifice the distance the signal can travel and of course you increase your risk. If a single strand is cut, twice as much is impacted.

J4858B for HP Transceivers 3rd Compatible Devices

New HP J4858B Compatible SFP 1000Base-SX Transceiver Module

Brief description:
New HP J4858B Compatible PROCURVE GIGABIT SFP 1000Base-SX Mini-GBIC Transceiver

Product Details

• Product Type: SFP Transceiver module
• Data Rate: 1.25Gbps
• Wavelength: 850nm
• Transfer Distance: 550m
• Connector Type: LC Duplex
• Cable Type: Multi-Mode Fiber (MMF)
• Compatibility: For use in HP devices
  Operating Temperature: 0~70

FiberStore is a professional company in optical components developing, researching and manufacturing. Products including optical transceivers and subsystem for fiber optical communications in Metro Networks, Access Networks, Fiber Channel, and FTTX, etc. Detail as 40GBase QSFP, 10GBase X2, CWDM X2, DWDM X2, XENPAK, CWDM XENPAK, DWDM XENPAK, XFP, WDM XFP (BIDI XFP), CWDM XFP, DWDM XFP11111, SFP+, WDM SFP+ (BIDI SFP+), CWDM SFP+, DWDM SFP+, SFP+ Copper Cable, 100Base to 4.25GBase SFP, WDM SFP (BIDI SFP), CWDM SFP, DWDM SFP, SGMII SFP, Copper SFP, GBIC, WDM GBIC (BIDI GBIC), CWDM GBIC, Copper GBIC, GPON OLT/ONU SFP, PLC Splitters, CWDM MUX/DeMUX, etc.

2011年12月7日星期三

The role and features of fiber optic jumper patch cable

Fiber optic patch cord is the fiber cable directly connected with the desktop computer or device,used as jumper cable to link and manage  facilitate device. Patch cable have the thick layer for protection itself, usually used in the connection between the optical transmission system and the terminal box.
Classification of fiber jumpers
Fiber jumper depended on transmission media can be divided into common silicon-based single-mode, multimode fiber jumpers, as well as other transmission medium such as the plastic optical fiber jumper; According to connector structure can be divided into: FC jumpers, SC jumper, ST jumpers, LC jumpers, MTRJ jumpers, MPO jumper, MU jumper, SMA jumper, FDDI jumper, E2000 jumper, DIN4 jumper, D4 jumper and other a variety of form. The more common optical fiber jumpers can be divided into FC-FC, FC-SC, FC-LC, FC-ST,SC-SC, SC-ST and so on.

Single-mode Fiber:the fiber jumper cabe is yellow, connector and protective cover is blue ; the transmission distance is longer generally.

Multi-mode Fiber:The fiber jumper cabe is in orange,  and some in gray ,connector and protective cover is cream-colored or black ; the transmission distance is shorter .
Characteristics of fiber jumper                            
1 low insertion loss
2 repeatability better
3 high return loss 
4 insert each performance
5 good temperature stability
Fiber jumper applications:
1 fiber-optic communication systems
2 optical access network
3 fiber-optic data transmission
4 fiber optic CATV
5. LAN
6. test equipment and device

2011年12月6日星期二

The advantages of CWDM

CWDM - Coarse Wavelength Division Multiplexing
DWDM - Dense Wavelength Division Multiplexing

DWDM undoubtedly is principal technology in the field of today optical applications, but its high price make a lot of off hand operators quite hesitant . Is it possible to enjoy a lower cost WDM technology? Faced with this demand, CWDM came into being.

CWDM is a low-cost WDM transmission technology for MAN access layer. In principle, CWDM use optical multiplexer making different wavelengths light signals multiplex to a single fiber for transmission, at the receiving end of the link, with an optical demultiplexer making the mixed signal in the optical fiber decompose into different wavelengths signal, connected to the appropriate receiving equipment.

The most important advantage of CWDM is low-cost equipment. In addition, another advantage of CWDM is to reduce network operating costs. Since CWDM devices are small, low power consumption, easy maintenance and power supply, it can use the 220V AC power. Because of its wavelength is relatively small, so the board back up to a small amount.  8-wave CWDM devices have no special requirements for optical fiber, G.652, G.653, G.655 fiber can be used, also can make use of existing fiber optic cable. CWDM systems can significantly improve the optical fiber transmission capacity and improve the utilization of optical fiber for optical fiber.

CWDM has good flexibility and scalability. Using CWDM technology can open the business for the user in one day or several hours, but also with the increasing business volume, you can insert a new OTU board for capacity expansion. Improve the quality of service. Using CWDM system in the MAN can make it possible to restore the optical layer. Optical layer recovery is more economic than the much-layer recovery. Taking into account to optical layer recovery is independent of the business and rate, then some of its original structure without protection system (such as Gigabit Ethernet), we can use CWDM to be protected. As the advantages of CWDM technology, the CWDM get more and more applications in the telecommunications, broadcasting, enterprise network, campus network and other areas.

This information from www.fiberstore.com

2011年12月5日星期一

The small and low-cost optical module-SFP optical module

cisco sfp transceiver
SFP optical module for Ethernet
Ethernet made it possible for two faraway computers to share information between each other, so a computer in beijing could share data with a computer in shanghai. Newer Ethernet standards made it possible for computer systems to send information more efficiently without the risk of losing any data. When newer Ethernet standards were fashioned, newer hardware also was utilized, and items known as SFP modules made it more efficient to transfer large packets of data.
Some were called SFP transceivers, others mini-GBIC, but all of these little products made it possible for Ethernet networks to transfer data across longer distances at a very efficient rate that past transceivers could not replicate.
 Hp sfp transceiver
SFP optical module
SFP package - hot little package module, the highest rate of up to 10G, multi-use LC interfaces. SFP is abbreviation of SMALL FORM PLUGGABLE that can be simply understood as the upgrade version of GBIC. SFP module volume ratio reduced by half than GBIC module, the same panel can be configured in more than double of ports. Other features of SFP Module are same with GBIC basicly. Some switch vendors said the SFP module is small GBIC (MINI-GBIC)
The composition of SFP optical module
Laser (includes transmitter TOSA with the receiver ROSA)and board IC and external components. External accessories are housing, base, PCBA, pull rings, clasps, unlock, rubber stopper composition. For easy to identify, generally the type of module of identify with the color pull ring parameters.
SFP classification
Divided by rate :155M/622M/1.25G/2.125G/4.25G/8G/10G,155M and 1.25G market is used more, 10G technology is maturing, demand is to increase quickly.
Divided according to the wavelength: 850nm/1310nm/1550nm/1490nm/1530nm/1610nm,  the 850nm wavelength is SFP multimode , and the transmission distance is 2KM below .1310/1550nm is SFP single-mode , and the transmission distance is longer than 2KM. 850nm/1310nm/1550nm price is relatively cheaper than the other three.
The bare module is easy to confuse if they have no mark, the manufacturers will make the color of pull ring to distinguish generally, for example: black pull ring is multi-mode, the wavelength is 850nm; blue is the 1310nm module; yellow is the 1550nm module ; purple is the 1490nm module and so on.
SFP, with its small and low-cost advantages to meet the equipment needs of high-density optical modules has become main stream.

This information from www.fiberstore.com

2011年12月4日星期日

Cisco optical transceivers module type


1, Cisco GBIC optical module packaging series
WS-G5484 GBIC Multi-mode optical module (850nm-1.25Gb/s-550M-SC)
WS-G5486 GBIC single mode optical module (1310nm-1.25Gb/s-10KM-SC)
WS-G5483 GBIC electrical module (1.25Gb/s-100M-RJ45)
WS-G5487 GBIC single mode optical module (1550nm-1.25Gb/s-80KM-SC)
2, the Cisco SFP optical module packaging series
GLC-SX-MM SFP multi-mode optical module (850nm-1.25Gb/s-550M-LC)
GLC-LH-SM SFP single-mode optical module (1310nm-1.25Gb/s-10KM-LC)
GLC-ZX-SM SFP single-mode optical module (1550nm-1.25Gb/s-80KM-LC)
GLC-T SFP electrical interface module (1.25Gb/s-100M-RJ45)
3, Cisco 2.125G SFP optical module packaging series
DS-SFP-2G-FC-SW 1/2G SFP multi-mode optical module(850nm-2.125Gb/s-550M-LC)
DS-SFP-2G-FC-LW 1/2G SFP single-mode optical module(1310nm-2.125Gb/s-10KM-LC)
DS-SFP-2G-FC-ZW 1/2G SFP single-mode optical module(1550nm-2.125Gb/s-80KM-LC)
4, Cisco 4G SFP optical module packaging series
ONS-SE-4G-MM 4G SFP multi-mode optical module (850nm-4.0Gb/s-550M-LC 100Base SFP
GLC-FE-100LX SFP single-mode optical module (1310nm-125Mb/s-10KM-LC)
GLC-FE-100FX SFP multi-mode optical module (1310nm-125Mb/s-2KM-LC)
GLC-FE-100EX SFP single-mode optical module (1310nm-125Mb/s-40KM-LC)
GLC-FE-100ZX SFP single-mode optical module (1550nm-125Mb/s-80KM-LC)
5, Cisco optical module BIDI SFP package series
GLC-BX-D BIDI SFP single-mode optical module(TX1490/RX1310nm-1.25Gb/s-10KM- 
single LC)
GLC-BX-U BIDI SFP single-mode optical module(TX1310/RX1490nm-1.25Gb/s-10KM- 
single LC)
GLC-FE-100BX-D BIDI SFP single-mode optical module(TX1550/RX1310nm-125Mb/s
-10KM- single LC)
GLC-FE-100BX-U BIDI SFP single-mode optical module(TX1310/RX1550nm-125Gb/s
-10KM- single LC)
6, Cisco XENPAK optical module packaging series
XENPAK-10GB-SR XENPAK multi-mode optical module(850nm-10.3Gb/s-300M-SC)
XENPAK-10GB-LR XENPAK single-mode optical module(1310nm-10.3Gb/s-10KM-SC)
XENPAK-10GB-ER XENPAK single-mode optical module(1550nm-10.3Gb/s-80KM-SC)
XENPAK-10GB-ZR XENPAK single-mode optical module(1550nm-10.3Gb/s-80KM-SC)
8, Cisco X2 optical modules package series
X2-10GB-SR X2 multi-mode optical module (850nm-10.3Gb/s-300M-SC)
X2-10GB-LR X2 single-mode optical module (1310nm-10.3Gb/s-10KM-SC)
X2-10GB-ER X2 single-mode optical module (1550nm-10.3Gb/s-80KM-SC)

9, Cisco XFP optical module packaging series
XFP-10GB-SR XFP multi-mode optical module (850nm-10.3Gb/s-300M-LC)
XFP-10GB-LR XFP single-mode optical module (1310nm-10.3Gb/s-10KM-LC)

10, Cisco SFP + optical module packaging series
SFP-10GB-SR SFP + single-mode optical module (850nm-10.3Gb/s-300M-SC)
SFP-10GB-LR SFP + single-mode optical module (1310nm-10.3Gb/s-10KM-SC)
Keyword: Cisco optical transceivers, Cisco optical transceivers module

2011年12月1日星期四

Cisco optical transceivers module categories

Cisco transceivers module is a foreign brand of optical modules, originating in theUnited States.  Cisco Systems, Inc is a leading provider of Internet solutions, their equipment and software products are mainly used to connect computer network system. Cisco is the meaning of Canadian snow chub. But Cisco is not the result from this, but the last five letters of SanFrancisco.

Cisco optical module categories:

The following are the major categories of Cisco optical module and description:

⑴ Cisco 1 × 9 package optical module: welding-type module, generally no higher than gigabit speeds, and use the SC interface.

⑵ Cisco SFF package optical modules:  a small welding package module, generally no higher than gigabit speeds, use the LC interfaces.

⑶ Cisco GBIC optical modules package: hot-swappable Gigabit Interface Module with SC connector.

 Cisco SFP optical transceivers  module package: hot-swappable Small form module, the highest data rate up to 4G, multi-use LC interfaces.

⑸ Cisco XENPAK optical module package : application in Gigabit Ethernet, with SC interface.

⑹ Cisco XFP  optical transceivers modules package: 10G optical modules used in Gigabit Ethernet, SONET and other systems, multi-use LC interfaces.