博文

目前显示的是 七月, 2017的博文

What Is Inside of a Fiber Optic Cable

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Fiber optic cable  is unlike most types of cables; it draw on light instead of electricty to transmit signals. As you have already known, the light is the fasterst way to transfer information, and fiber optic cable has additional advantages are immune to electrical interference. So, you can run it anywhere and at any time. Because light meets litter or no resistance, you can run the  fiber optic cable  in a long distance, literally countries apart, without increasing or clean signal. Imagination process thousands of miles away. It will be impossible.   Optical fiber velocity also has its own advantages. It has a cleaner signal than conventional copper wire and transmit signals over 10 gb/s. Put it into perspective, fiber optic wiring is digital information as an electrical wiring is analog information. They are completely different.   At present, the  fiber optic cable  used to connect to the network, basically make the short run, the connection layer, construction and conne

Popular ToR and ToR Switch in Data Center Architectures

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Top of rack (ToR) is one common architecture of switch-to-server connections. According to a survey result in 2015, ToR was the most popularly used architecture both in colocation data centers and enterprise data centers. Seen from current trend, it will be widely deployed in the present and in the future as well.   “But, wait, what does a ToR look like? Is a top-of-rack switch placed at the top of the rack?”   Thanks for your questions. A ToR switch could be at the top of the rack, but the actual physical location does not necessarily need to be at the top of the rack. It can also be at bottom or middle of the rack. After practical installation, however, engineers found that top of the rack is better due to easier accessibility and cleaner cable management.   Benefits of ToR are many and in brief they are: Copper stays “In Rack”. Lower cabling costs. Modular and flexible “per rack” architecture. Future-proofing for higher speeds. In a ToR design, at least one sw

BIDI WDM Single Fiber 10/100M 1490/1550 40km Ethernet Media Converter

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A Pair of BIDI WDM Single Fiber Ethernet Fiber Media Converter 10/100M 1490/1550nm 40km Media converters  can be used anywhere in the network to integrate newer technology with existing equipment to support new applications, technologies and future growth. Instead of costly, across-the-board upgrades, media converters can extend the productive life of the existing cabling as well as the active equipment. Fiber-Mart.COM  supply 10/100Base Ethernet Fiber Media Converters, 1000Base Gigabit Fiber Media Converter,SFP Fiber Media Converter, Options in singlemode dual fiber, multimode dual fiber and singlemode single fiber. We also supply Media Coverter Chassis, like 14 slot media converter chassis and 16 slot media converter chassis, used to manage the various media converters. Features AutoCross™: Automatically detects and configures the twisted pair port on the converter to the correct MDI or MDI-X configuration. Link Pass Through: Link Pass Through is a troubleshooting feature t

Android PDA ST307

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Android PDA ST307 Introduction ST307 = Smart Phone+ Laptop+ DSL Tester +  Optical Power Meter  + VFL +Cable Tracker+ Barcode Scanner.The PDA for industrial application is gradually becoming the mainstay for the development of the market.Aiming at the management and test need during the telecommunication operation and maintenance, ST307 a handheld intelligent PDA is especially designed for the telecommunication operation and maintenance domain. It adopts mainstream Android operating system, which combine industrial smart phone, telecom test functions like ADSL tester,  optical power meter , VFL and Bar code scan, GPS location to one. Features Fast Processor CPU is MSM7627 AA and the system adopts Android 4.0 ICS Operating System. Strong protection for bad environment It can apply to the bad environment, which can resist multiple dropping impact from 1.2m high; apply to IP65 protection grade with good water-proof and dust-proof effect; durable and long life span. Visible 3.5

Cisco 4.25Gbps 50GHz DWDM SFP 80km Compatible Transceiver

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Cisco 4.25Gbps 50GHz DWDM SFP 80km Compatible Transceiver DWDM-SFP4GH-80 The  DWDM-SFP4GH-80 series single mode transceiver  is small form factor pluggable module for duplex optical data communications. This module is designed for single mode fiber and operates at a nominal DWDM wavelength from 1528.77nm to 1563.86nm as specified by the ITU-T. It is designed to deploy in the DWDM networking equipment in metropolitan access and core networks. It is with the SFP 20-pin connector to allow hot plug capability. The transmitter section uses a DWDM multiple quantum well DFB laser and is a class 1 laser compliant according to International Safety Standard IEC-60825. The DWDM-SFP4GH-80 series are designed to be compliant with SFF-8472 Multi-Source Agreement (MSA). Key Features Operating Data Rate up to 4.25Gbps Available in all C-Band Wavelengths on the 50GHz DWDM ITU Grid Compliant with Class 1 FDA and IEC60825-1 Laser Safety Single 3.3V Power Supply and TTL Logic Interface Hot-

Optical Fiber Identifier

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Optical Fiber Identifier ST-3306B Description ST-3306B  Optical Fiber Identifier  can quickly identify the direction of transmitted fiber and display the relative core power without any damages to the bended fiber. When the traffic is present, the intermittently audible tone is activated. There are four adapter heads available: Ø0.25, Ø0.9, Ø2.0 and Ø3.0, besides the Ø0.25 is applicable for bare fiber, the other three different dia. adapter heads are applicable for pigtails. With the ST-3306B fiber identifier, you can indicate the signal direction in different fibers. Features Easy-to-use with “ONE KEY” operation Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) with audible warning. Displays the relative core power More accurate test with Sunshade Easy-to-replace adaptors Durable metal housing and quality construction Lower power indication Standard Package ST-3306B Optical Fiber Identifier, 4pcs adapter heads, Sunshade, User Manual

Fiber Optic Polisher (MLP-12E)

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Fiber Optic Polisher (MLP-12E) Description MLP-12E automatic  fiber polishing machine  was developed by taken full use of industrial microcomputer. It set motor speed, time, count in one body, which improved the stability of the engine. And the use of advanced touch buttons technology increased the waterproof performance and beautiful degree of the machine. Features 8 groups process programming, including: Grinding time programming Programming, increasing number of programming time programming LCD blue backlight shows Function A: Working voltage The machine to work AC220V voltage B: Stepless speed Button control functions, speed range: 10n/m ~ 100n/m. C: Process programming It can undertake 8 groups, including: Process programming of grinding time, several Programming, programming adding time of programming D: Automatic counting Each time you press the start button, then automatically add 1 counter E: Automatic shutdown 5 minutes without operation, automatic shutdown. F:

SFP to 16x10/100Base-T RJ-45 Industrial Managed Media Converter

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4x10/100/1000Base-X SFP to 16x10/100Base-T RJ-45 Industrial Managed Media Converter Media converters  can be used anywhere in the network to integrate newer technology with existing equipment to support new applications, technologies and future growth. Instead of costly, across-the-board upgrades, media converters can extend the productive life of the existing cabling as well as the active equipment. Fiber-Mart supply 10/100Base Ethernet Fiber Media Converters, 1000Base Gigabit Fiber Media Converter, SFP Fiber Media Converter, Industrial managed Media Converter, Managed Media Converter,  POE media Converter , options in singlemode dual fiber, multimode dual fiber and singlemode single fiber. We also supply Media Converters Chassis, like 14 slot media converter chassis and 16 slot media converter chassis, used to manage the various media converters.   Key Features 4 SFP 10/100/1000 Ports, 10/100Mbps auto-negotiation UTP Ports Supports Full/Half Duplex, auto-negotiation, MDI/MD

MFT-OTDR Handheld Optical Fiber Test Tool

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YOKOGAWA AQ1200 MFT-OTDR Handheld Optical Fiber Test Tool 1310/1550nm Introduction The AQ1200 is the newest addition to  Yokogawa's OTDR product  family offering an even smaller and lighter alternative to the AQ7275 models. Like the larger AQ7275, it also offers an industry leading 0.8m event dead zone as well as the convenient capability to display a fiber connector inspection probe using one of the unit's standard USB I/O ports. Tradeoffs compared to the larger AQ7275 include omission of the built-in launch fiber option, limited to SMF fiber only and a reduced dynamic range of 32/30dB. Features a.  OTDR  that supports SM1310/1550nm with a short 80 cm event dead zone b. Quick power on for faster operations c. Able to display trace and event information at the same time d. Full auto mode for novice users and information tips for more experienced users e. Bright LCD screen for easy viewing inside buildings and outside f. Includes Fault Locator functions for fast mea