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Summary of Contents for Allied Telesis AT-2814FX
- Page 1 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 613-001676 Rev. C...
- Page 2 Telesis, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has been...
- Page 3 European Union Restriction of the Use of Certain Hazardous Substances (RoHS) in Electrical and Electronic Equipment This Allied Telesis RoHS-compliant product conforms to the European Union Restriction of the Use of Certain Hazardous Substances (RoHS) in Electrical and Electronic Equipment. Allied Telesis ensures RoHS conformance by requiring supplier Declarations of Conformity, monitoring incoming materials, and maintaining manufacturing process controls.
- Page 4 Translated Safety Statements Important: The indicates that a translation of the safety statement is available in a PDF document titled “Translated Safety Statements” posted on the Allied Telesis website at: www.alliedtelesis.com/support/.
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Page 5: Table Of Contents
Downloading the Driver Software ............................23 Installing the Driver Software..............................24 Chapter 3: Installing the Hardware ..........................29 Reviewing Safety Precautions ..............................30 Pre-Installation Checklist ..............................32 Installing the AT-2814FX ExpressCard ..........................33 Connecting the Network Cable .............................38 Chapter 4: Modifying Advanced Properties ........................41 Overview....................................42 Guidelines ..................................42 Starting the Device Manager ..............................43... - Page 6 Contents Appendix A: Specifications ..............................79 Physical Specifications .................................79 Environmental Specifications..............................79 Power Specifications................................79 Performance Specification ..............................79 Operating Specifications ...............................80 Appendix B: Cleaning Fiber Optic Connectors .......................81 Overview ....................................82 Cleaning Fiber Optic Connectors Using a Cartridge-Type Cleaner ..................83 Cleaning Fiber Optic Connector Using a Swab ........................85...
- Page 7 Figure 12. The Button and Plate after Pressing the Button ....................35 Figure 13. Removing the Plate ............................35 Figure 14. Attaching the Stabilizer to the AT-2814FX ExpressCard..................36 Figure 15. Inserting the Unit into the 54mm Slot .........................36 Figure 16. System Properties Window on Windows XP ......................43 Figure 17.
- Page 8 Figures...
- Page 9 Tables Table 1: Fiber Optic Port LED Status ..........................17...
- Page 10 Tables...
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Page 11: Preface
Preface This manual is the installation and user’s guide for the AT-2814FX Fast Ethernet Fiber (SC) ExpressCard. The instructions in this guide explain how to install the ExpressCard on a laptop computer, install and uninstall the driver software, and configure the driver software. This preface contains the following sections: “Safety Symbols Used in this Document”... -
Page 12: Safety Symbols Used In This Document
Preface Safety Symbols Used in this Document This document uses the following conventions: Note Notes provide additional information. Caution Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data. Warning Warnings inform you that performing or omitting a specific action may result in bodily injury. -
Page 13: Contacting Allied Telesis
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Contacting Allied Telesis If you need assistance with this product, you may contact Allied Telesis technical support by going to the Support & Services section of the Allied Telesis web site at www.alliedtelesis.com/support. You can find links for... - Page 14 Preface...
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Page 15: Chapter 1: Overview
Chapter 1 Overview This chapter provides an overview of the the AT-2814FX Fast Ethernet Fiber (SC) ExpressCard in the following sections: “Physical Description” on page 16 “Supported Operating Systems” on page 18 “Hardware Features” on page 19 ... -
Page 16: Physical Description
You can install the AT-2814FX ExpressCard in a 34mm or 54mm PCI ExpressCard slot on your laptop computer. SC Fiber The faceplate on the AT-2814FX ExpressCard has a pair of SC fiber connectors for attaching the ExpressCard to a compatible link partner. Connector One fiber optic connector is for transmitting and the other is for receiving. -
Page 17: Led
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide The AT-2814FX ExpressCard has one LED as shown in Figure 2. Figure 2. AT-2814FX LED Table 1 describes the link states that the LED indicates. Table 1. Fiber Optic Port LED Status... -
Page 18: Supported Operating Systems
Chapter 1: Overview Supported Operating Systems The following operating systems are supported: Windows XP Windows Vista Windows 7 Linux 2.6 When new driver software is released, they will be posted on the Allied Telesis website: www.alliedtelesis.com/support/software/. Note The procedures for Installing the driver software for the Linux operating system is not included in this manual. -
Page 19: Hardware Features
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Hardware Features The AT-2814FX ExpressCard supports the following features: One 100BASE-FX port with a pair of SC multi-mode fiber connectors Full and half duplex Media Access Control (MAC) ... -
Page 20: Contents Of Your Shipment
Stabilizer When installing the AT-2814FX ExpressCard into the 54mm PCI card slot of your laptop computer, attach the stabilizer to your AT-2814FX ExpressCard. Note The AT-2814FX ExpressCard is not shipped with a software driver CD. You must download the driver software from the Allied Telesis website. -
Page 21: Chapter 2: Installing The Driver Software
Chapter 2 Installing the Driver Software This chapter describes how to install driver software for the AT-2814FX ExpressCard onto your operating system. It contains the following topics: “Overview” on page 22 “Downloading the Driver Software” on page 23 ... -
Page 22: Overview
Chapter 2: Installing the Driver Software Overview To install the driver software, you must download the driver software for the AT-2814FX ExpressCard from the Allied Telesis website onto your operating system. Allied Telesis recommends installing the driver software for the AT- 2814FX ExpressCard before physically installing the card. -
Page 23: Downloading The Driver Software
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Downloading the Driver Software The AT-2814FX ExpressCard is not shipped with a software driver CD. You must download driver software from the Allied Telesis website. To download driver software, do the following: 1. -
Page 24: Installing The Driver Software
Chapter 2: Installing the Driver Software Installing the Driver Software To install the driver software for the AT-2814FX ExpressCard, do the following: 1. Locate the AT2814FX-drivers-setup zip folder that you downloaded from the Allied Telesis website onto your system. See “Downloading the Driver Software”... -
Page 25: Figure 6. Marvell Miniport Driver Setup Wizard
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide The Marvell Miniport Driver Setup Wizard window comes up. See Figure 6. Figure 6. Marvell Miniport Driver Setup Wizard 5. Click Next. The Licence Agreement window comes up as shown in Figure 7. -
Page 26: Figure 7. Setup Wizard License Agreement
Chapter 2: Installing the Driver Software Figure 7. Setup Wizard License Agreement 6. Read the License Agreement. 7. If you accept the terms of the agreement, select the first option and click Install. When the installation is completed, the Installation Complete window is displayed. -
Page 27: Figure 9. Finishing Setup Wizard
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Figure 9. Finishing Setup Wizard 9. Click Finish. - Page 28 Chapter 2: Installing the Driver Software...
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Page 29: Chapter 3: Installing The Hardware
Chapter 3 Installing the Hardware This chapter contains the following sections: “Reviewing Safety Precautions” on page 30 “Pre-Installation Checklist” on page 32 “Installing the AT-2814FX ExpressCard” on page 33 “Connecting the Network Cable” on page 38 ... -
Page 30: Reviewing Safety Precautions
Chapter 3: Installing the Hardware Reviewing Safety Precautions Please review the following safety precautions before you begin to install the AT-2814FX ExpressCard. Note indicates that a translation of the safety statement is available for viewing in portable document format (PDF) titled Translated Safety Statements from our web site at www.alliedtelesis.com/support. - Page 31 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Warning The AT-2814FX ExpressCard is being installed in a system that operates with voltages that can be lethal. Before you remove the cover of your system, you must observe the following precautions to protect yourself and to prevent damage to the system components.
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Page 32: Pre-Installation Checklist
6. Check the ExpressCard for visible signs of damage, particularly on the edge connector. 7. Ensure that you have installed the driver software for the AT-2814FX ExpressCard before installing the card. Caution Do not attempt to install a damaged product. -
Page 33: Installing The At-2814Fx Expresscard
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Installing the AT-2814FX ExpressCard The following instructions describe how to install the AT-2814FX ExpressCard in a laptop computer equipped with a 34 mm or 54 mm PCI ExpressCard interface slot. The installation illustrations in this manual use the 54 mm interface because it is the more common interface for laptop computers. -
Page 34: Figure 10. Selecting The Pci Expresscard Slot
Chapter 3: Installing the Hardware Figure 10. Selecting the PCI ExpressCard Slot 3. Use a pen and press the button toward the laptop and to the left. See Figure 11. The button pops out along with the plate. See Figure 12 on page 35. Figure 11. -
Page 35: Figure 12. The Button And Plate After Pressing The Button
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Figure 12. The Button and Plate after Pressing the Button 4. Remove the plate from the laptop. See Figure 13. Keep the plate in a safe place. You may need it for future use. -
Page 36: Figure 14. Attaching The Stabilizer To The At-2814Fx Expresscard
Chapter 3: Installing the Hardware Figure 14. Attaching the Stabilizer to the AT-2814FX ExpressCard 6. Applying even pressure at both corners of the ExpressCard, push the card until it is firmly seated in the PCI ExpressCard slot. Figure 15 shows how to insert the card in the 54mm slot. - Page 37 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 7. Make sure the ExpressCard is seated securely. 8. Power on the laptop computer. Once the system returns to proper operation, the ExpressCard hardware is fully installed. Next, connect the network cables. See...
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Page 38: Connecting The Network Cable
Chapter 3: Installing the Hardware Connecting the Network Cable The AT-2814FX ExpressCard has a pair of optic connectors for attaching the laptop to a compatible link partner, or an IEEE 802.3z compliant Fast Ethernet switch. One optic connecter is for transmitting and the other is for receiving. - Page 39 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Note Even minor smudges or dirt on the end face of the fiber can disrupt light transmission and lead to failure of the connection. For instructions that describe how to clean the fiber optic connector, see...
- Page 40 Chapter 3: Installing the Hardware...
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Page 41: Chapter 4: Modifying Advanced Properties
Chapter 4 Modifying Advanced Properties This chapter includes the following topics: “Overview” on page 42 “Starting the Device Manager” on page 43 “Flow Control” on page 50 “Interrupt Moderation” on page 52 “Jumbo Packet” on page 54 ... -
Page 42: Overview
Chapter 4: Modifying Advanced Properties Overview To modify the advanced properties of the AT-2814FX ExpressCard, you must access the Device Manager on your operating system, then go to each advanced property page. To start the Device Manager, see “Starting the Device Manager” on page 43. -
Page 43: Starting The Device Manager
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Starting the Device Manager The procedures for accessing the Device Manager are different among Windows XP, Windows Vista and Windows 7. To start the Device Manager on your system, perform one of the following procedures: “Device Manager on Windows XP”... -
Page 44: Figure 17. Hardware Page On Windows Xp
Chapter 4: Modifying Advanced Properties Figure 17. Hardware Page on Windows XP 3. Click Device Manager. The Device Manager window opens shown in Figure 18. Figure 18. Device Manager Window on Windows XP... -
Page 45: Figure 19. Device Manager With An Expanded List On Windows Xp
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 4. In the Device Manager window, click the + next to the Network Adapters folder. The selection expands to show the list of installed network adapter cards as shown in Figure 19. -
Page 46: Figure 20. Properties Window
Chapter 4: Modifying Advanced Properties Figure 20. Properties Window 6. Click the Advanced tab. The Advanced Properties window opens as shown in Figure 21. Figure 21. Advanced Properties Window... -
Page 47: Device Manager On Windows Vista And Windows 7
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Device Manager The procedures for accessing the Device Manager on Windows Vista and Windows 7 are identical. To start the Device Manager on Windows Vista on Windows or Windows 7, do the following:... -
Page 48: Figure 23. Device Manager Window On Windows Vista And 7
Chapter 4: Modifying Advanced Properties Figure 23. Device Manager Window on Windows Vista and 7 3. In the Device Manager window, click the next to the Network Adapters folder. The selection expands to show the list of installed network adapter cards. -
Page 49: Figure 25. Properties Window On Windows Vista And 7
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 4. Double-click on Allied Telesis AT-2814FX. The properties window pops up as shown in Figure 25 on page 49. Figure 25. Properties Window on Windows Vista and 7... -
Page 50: Flow Control
3. Select Flow Control in the Property box. 4. Click on the in the Value box. The options are displayed as shown in Figure 26. Figure 26. Flow Control Page 5. Select one of the following options: Disabled— The AT-2814FX ExpressCard ignores PAUSE frames. ... - Page 51 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Tx & Rx Enabled— The AT-2814FX ExpressCard processes pause frames when receiving and transmits pause frames This is the default setting. 6. Click OK.
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Page 52: Interrupt Moderation
Chapter 4: Modifying Advanced Properties Interrupt Moderation The Interrupt Moderation feature allows you to limit the rate of interrupts to the CPU during packet transmission and packet reception. When this feature is enabled, interrupts are handled as a group so that the CPU utilization decreases;... - Page 53 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 5. Select one of the following options: Disabled— The Interrupt Moderation feature is disabled Enabled— The Interrupt Moderation feature is enabled. This is the default setting. 6. Click OK.
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Page 54: Jumbo Packet
Chapter 4: Modifying Advanced Properties Jumbo Packet The Jumbo Packet property specifies the size of the frame that the AT- 2814FX ExpressCard supports. The network performance usually improves when the larger packet size is specified; however, the network must be capable of supporting such large packets. To change the Jumbo Packet size, do the following: 1. - Page 55 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 5. Select one of the following options: 1514 Bytes— The AT-2814FX ExpressCard supports up to 1514 bytes in a packet size. This is the default value. 4088 Bytes— The AT-2814FX ExpressCard supports up to 4088 ...
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Page 56: Large Send Offload (Ipv4)
Chapter 4: Modifying Advanced Properties Large Send Offload (IPv4) The Large Send Offload feature for IPv4 traffic allows you to control the load of sending out large packets. When this feature is enabled, the AT- 2814FX ExpressCard segments large packets and reduces the CPU load. To enable or disable the Large Send Offload (IPv4) feature, do the following: 1. - Page 57 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide 5. Select one of the following options: Disabled— The AT-2814FX ExpressCard does not segment packets. Enabled — The AT-2814FX ExpressCard segments large packets before sending them out. This option reduces the CPU load as the AT-2814FX ExpressCard performs the segmentation.
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Page 58: Log Status Messages
Chapter 4: Modifying Advanced Properties Log Status Messages The Log Status Messages property specifies which messages to be generated and stored in the event log file. To change the Log Status Messages setting, do the following: 1. Access the Device Manger on your operating system. See “Starting the Device Manager”... - Page 59 AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Errors — Only error messages are generated and stored in the event log file. None— No message is generated. Status Messages — An event log entry is generated every time ...
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Page 60: Max Irq Per Sec
Chapter 4: Modifying Advanced Properties Max IRQ per Sec The Max IRQ per Sec property specifies the rate of interrupts to the CPU during packet transmission and packet reception. The interrupt Moderation feature uses this property to group CPU interrupts. When the Interrupt Moderation is disabled, the value of Max IRQ per Sec is ignored. -
Page 61: Network Address
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Network Address The Network Address allows you to replace the MAC address originally assigned to the AT-2814FX ExpressCard with a user-defined address. The user-defined address that you assign to the ExpressCard is called a locally administered address. - Page 62 Chapter 4: Modifying Advanced Properties 4. In the Value textbox, enter a locally administered address for the AT- 2814FX ExpressCard. Here are guidelines to assigning a locally administered address: The address must be unique. The address consists of a 12-digit hexadecimal number, for ...
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Page 63: Receive Buffers
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Receive Buffers The Receive Buffers property sets the number of receive buffers that is allocated for the AT-2814FX ExpressCard. Increasing this value may enhance performance in receiving traffic, but consumes more system memory. - Page 64 Chapter 4: Modifying Advanced Properties 5. Select one of the following numbers: 256— This is the default value. 6. Click OK.
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Page 65: Speed & Duplex
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Speed & Duplex The Speed & Duplex property set both the link speed and the duplex mode of the AT-2814FX ExpressCard. To change the Speed & Duplex property, do the following: 1. - Page 66 Chapter 4: Modifying Advanced Properties 100 Mbps Half Duplex— 100 Mbps speed in the half duplex mode. 6. Click OK.
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Page 67: Tcp/Udp Checksum Offload (Ipv4)
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide TCP/UDP Checksum Offload (IPv4) The TCP/UDP Checksum Offload (IPv4) function enables the AT-2814FX ExpressCard to compute the checksum of transmitting packets and verify the checksum of receiving packets, taking load off from the CPU on your laptop. - Page 68 Chapter 4: Modifying Advanced Properties 5. Select one of the following options: On— Enables the TCP/UDP Checksum Offload function. This is the default setting. Off— Disables the TCP/UDP Checksum Offload function. 6. Click OK.
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Page 69: Transmit Buffers
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Transmit Buffers The Transmit Buffers property specifies the number of transmit buffers that is allocated for the AT-2814FX ExpressCard. Increasing this value may enhance performance in transmitting traffic, but consumes more system memory. - Page 70 Chapter 4: Modifying Advanced Properties 5. Select one of the following numbers: 256— This is the default value. 6. Click OK.
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Page 71: Wake From Shutdown
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Wake From Shutdown The Wake From Shutdown feature enables your laptop to start from the shutdown state when the AT-2814FX ExpressCard receives the types of frame that are specified by “Wake-Up Capabilities” on page 73. - Page 72 Chapter 4: Modifying Advanced Properties 5. Select one of the following options: On— Enables the Wake From Shutdown feature. Off— Disables the Wake From Shutdown feature. This is the default setting. 6. Click OK.
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Page 73: Wake-Up Capabilities
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Wake-Up Capabilities The Wake-Up Capabilities property specifies the type of frame that the Wake From Shutdown feature uses. When the Wake From Shutdown feature is enabled, your laptop starts from the shutdown state as the AT- 2814FX ExpressCard receives the type of frame that the Wake-Up Capabilities property specifies. - Page 74 Pattern Match — Your laptop wakes up from the shutdown state when the AT-2814FX ExpressCard receives a packet that matches the pattern specified by the operating system. The Wake From Shutdown feature must be enabled for your laptop to behave this way.
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Page 75: Chapter 5: Uninstalling The Driver Software
Chapter 5 Uninstalling the Driver Software This chapter describes how to uninstall the driver software for the AT- 2814FX ExpressCard. This chapter contains the following topics: “Overview” on page 76 “Uninstalling the Driver Software” on page 77 ... -
Page 76: Overview
Chapter 5: Uninstalling the Driver Software Overview When you no longer use the AT-2814FX ExpressCard for your laptop computer, you may want to uninstall the driver software from your operating system. Guidelines Here are the guidelines to uninstalling the driver software from your system: You must have Administrator privileges to remove the driver software. -
Page 77: Uninstalling The Driver Software
See Figure 19 on page 45 for Windows XP or Figure 24 on page 48 for Windows 7 and Windows Vista. 4. Select the Allied Telesis AT-2814FX, right-click on the name, then select Uninstall on the options. Figure 39 on page 78 shows the Device Manager with the option list. -
Page 78: Figure 39. Device Manager Window With An Option List
Chapter 5: Uninstalling the Driver Software Figure 39. Device Manager Window with an Option List A Confirm Device Uninstall window pops up as shown in Figure 40. Figure 40. Confirm Device Uninstall Window 5. Check the checkbox if you wan to remove additional driver and installation files. -
Page 79: Appendix A: Specifications
Appendix A Specifications Physical Specifications This section provides the dimensions and weight of the AT-2814FX ExpressCard. Dimensions: 13.7 cm x 3.4 cm (5.4 in. x 1.3 in.) Weight: 0.02 kg (0.05 lb) Environmental Specifications The following environmental specifications apply to the AT-2814FX... -
Page 80: Operating Specifications
Appendix A: Specifications Operating Specifications The following operating specifications apply to the AT-2814FX ExpressCard: Wavelength: 1310 nm Output Optical Power: 62.5/125 µm -19 (min) / -14 (max) 50/125 µm -22.5 (min) / -14 (max) Input Optical Power Minimum at Eye Center:... -
Page 81: Appendix B: Cleaning Fiber Optic Connectors
Appendix B Cleaning Fiber Optic Connectors This appendix explains how to clean fiber optic connectors and includes the following topics: “Overview” on page 82 “Cleaning Fiber Optic Connectors Using a Cartridge-Type Cleaner” on page 83 “Cleaning Fiber Optic Connector Using a Swab” on page 85 ... -
Page 82: Overview
Appendix A: Cleaning Fiber Optic Connectors Overview The fiber optic connector consists of a fiber optic plug and its adapter. The end of the fiber optic cable is held in the core of the ferrule in the plug. Light signals are transmitted through the core of the fiber. Even minor smudges or dirt on the end face of the fiber, completely invisible to the naked eye, can disrupt light transmission and lead to failure of the component or of the entire system. -
Page 83: Cleaning Fiber Optic Connectors Using A Cartridge-Type Cleaner
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Cleaning Fiber Optic Connectors Using a Cartridge-Type Cleaner Fiber optic cartridge-type cleaners are available from many vendors and typically called “cartridge cleaners.” See Figure 43. Figure 43. Cartridge Cleaner Note Do not use compressed air or aerosol air to clean a fiber optic connector. - Page 84 Appendix A: Cleaning Fiber Optic Connectors Note Rub the ferrule tip on the cleaning surface in one direction only. 3. When you reach the end of the cleaning surface, pick up the ferrule tip, rotate and place it at the top and rub downwards at least 2 times. Caution Failing to pick up the ferrule tip when you reach the bottom of the cleaning surface can result in static electricity that can damage the...
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Page 85: Cleaning Fiber Optic Connector Using A Swab
AT-2814FX Fast Ethernet Fiber (SC) ExpressCard Installation and User’s Guide Cleaning Fiber Optic Connector Using a Swab Specially treated swabs (stick cleaners) are available for cleaning inside connector adapters or hard-to-reach ferrule tips. These swabs, often referred to as “lint free” or “alcohol free” swabs, are available from many vendors. - Page 86 Appendix A: Cleaning Fiber Optic Connectors 3. If a fiber inspection scope is available, use the scope to inspect the connector to make sure that it is clean and to check for scratches, pits, or other problems that may affect performance. Note Always keep a dust cap on a fiber optic cable when it is not in use.
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