perle-logoPerle LogoPerle Logo
  • Global - English

    • Deutsch

    • Français

    • Italiano

    • Español

    • 日本語

    • 中國

  • Contact Us
  • PRODUCTS
      • Serial to Ethernet
        Connect serial based equipment across an Ethernet LAN:
      • Serial Terminal Servers
        Connect Serial RS232 ports over Ethernet
      • Serial Console Servers
        Connect to Cisco and Data Center Equipment
      • Serial Device Servers
        Network enable RS422 and RS485 Devices
      • Ethernet I/O
        Access & Control remote Digital IO, Analog IO, relays & sensors
      • Serial Extenders
        Extend Serial data transmissions over long distance
      • Serial to Fiber
        Extend RS232, RS422 and RS485 over optical fiber
      • Serial SHDSL Extender
        Transmit serial data up to 20 km across copper wire
      • RS232 Serial Isolator
        Electrical isolation of RS-232 (V.24) interfaces
      • Serial Interface Converter
        Convert RS232 to RS422 or RS485
      • RS485 Repeater
        Amplify RS485 signals up to 1.2km
      • Media Converters
        Extend network distances over fiber up to 160km
      • Copper to Fiber
        Extend 10/100/1000/10G copper-based Ethernet equipment over fiber
      • Fiber to Fiber
        Connect multimode to multimode or multimode to single mode
      • Specialized Converters
      • Modular Chassis System
      • Stand-alone Media Converters
      • Managed Media Converters
      • SFP Media Converters
      • PoE Media Converters
      • Industrial Converters
      • DIN Rail Mounted Converters
      • SFP to SFP Protocol Transparent
      • SFP, SFP+ and XFP Optical Transceivers
      • SFP Optical Transceivers
      • SFP+ and XFP Optical Modules
      • PerleVIEW Device Management Software
        Centralized management for Perle Media Converters, Ethernet Extenders and Industrial Switches
      • LTE Routers
        Enterprise-Class Edge Cellular Routers & Gateways
      • Ethernet Extenders
        Transparently extend 10/100/1000 Ethernet connections across copper wiring
      • Ethernet Repeater
      • 10/100 Copper Extenders
      • 10/100/1000 Copper Extenders
      • Modular Chassis System
      • Stand-alone Copper Extenders
      • Managed Ethernet Extenders
      • Industrial Ethernet Extenders
      • PoE Ethernet Extenders
      • SHDSL Ethernet Extender
      • Remote Power Switches
        Remotely power on/off/cycle Data Center equipment
      • PCI Cards
      • Serial Cards
        Add RS232, RS422, RS485 serial ports to your PC or server
      • Parallel Cards
        Add IEEE 1284 parallel ports standard to your PC or servers
      • Industrial Switches
        Compact Industrial-grade Ethernet Switches designed for harsh temperature, vibration and shock environments
      • Managed Industrial Switches
      • Unmanaged Industrial Switches
      • PoE Switches
      • DIN Rail Power Supplies
        5, 12, 15, 24, or 48 V DC Industrial-grade reliability
      • Filter & Search Power Supplies
      • DIN Rail Patch Panels
        Ethernet patch panels simplify connecting field cabling to control cabinet cabling.
      • PoE & PoE+ Injectors
        Integrate PoE devices into a non-PoE network
      • Surge Protectors
        Effective lightening, RFI and transient surge protection
      • CAT5/6/7 Surge Protector
        Protect wired, wireless and PoE equipment at speeds up to 10Gbps
      • SHDSL Surge Protector
        Protect DSL telecommunication interfaces
  • APPLICATIONS
      • Industry User Stories
      • Telecommunications
      • Healthcare and Medical
      • Government / Military
      • Data Center Management
      • Electric Utilities
      • Renewable Energy
      • Oil & Gas
      • Industrial Automation
      • Marine
      • Finance
      • Education
      • Retail / Point of Sale (POS)
      • Transportation
      • Sports & Entertainment
      • Broadcasting
      • Resources
      • Online Product Demos
      • About Serial to Ethernet
      • Serial to Ethernet Terminology
      • About Ethernet over Fiber
      • About Fiber to Fiber Conversion
      • Documents
      • Technical Notes
      • Application Notes
      • Case Studies
      • White Papers
  • HOW TO BUY
      • Online Stores
      • USA Store
      • Canada Store
      • UK Store
      • European Store
      • Contact Perle
      • Contact Perle Sales
      • Get a Quote
      • Product Questions
      • Distributors
      • USA Distributors
      • Worldwide Distributors
  • SUPPORT
      • Maintenance
      • Maintenance Options
        • America
        • EMEA
      • Maintenance Registration
      • Maintenance Inquiries
      • Warranty
      • Perle Product Warranties
      • Country Warranties
      • Warranty Registration
      • RMA Request
      • Technical Support
      • Request Support
      • Downloads
      • Knowledgebase
      • Cabling
      • Declarations of Conformity
  • ABOUT PERLE
      • Partners
      • Alliances
      • OEM Program
      • Enviromental Policy
      • REACH, RoHS & WEEE
      • Conflict Minerals
      • ISO 9001 & EMS 14001
      • Privacy & Cookie Policy
      • News & Events
      • Press Releases
      • Industry News
      • Media Contacts
      • About Us
      • Company
      • Contact Us
      • Careers
      • Certifications
      • Worldwide Offices
  1. Applications
  2. Technical Notes
  3. Single Strand ( WDM ) Fiber
  4. Print Friendly Version of this pagePrint Get a PDF version of this webpagePDF

Single Strand ( WDM ) Fiber

Connecting devices over a single fiber strand

When Single Strand ( also referred to as “Bi-Directional” BiDi or Simplex) fiber is used, a pair of devices, also referred to as “Up/Down” models, is needed for the fiber conversion

The majority of installations for single mode or multimode fiber are of the “dual connector” or “dual fiber” type where one fiber connection is used for transmit, the other for receive. These are physically “crossed” to match up the Transmit/Receive links.

Get a quoteProduct question?
Single Mode Fiber DiagramUPDOWN

To reduce costs, or where there are limits on available fiber, Wavelength-Division Multiplexing (WDM) technology may be utilized. WDM uses separate transmit and receive frequencies to communicate on a single fiber strand. WDM technology relies on the fact that optical fibers can carry many wavelengths of light simultaneously without interaction between each wavelength. Thus, a single fiber can carry many separate wavelength signals or channels simultaneously. WDM systems are divided into different wavelength patterns, conventional/coarse (CWDM) and dense (DWDM).

So remember, if Single Strand fiber is used, you will need an “Up” side and a “Down” side when interconnecting fiber devices.

Perle offers a wide variety of Single Fiber (“Up/Down”) Ethernet Switches and Media Converters for use with single strand fiber.

Back to top

Products

Applications

About Perle

Contact Us

How to Buy

Technical Support

Site Map

Legal Information

Privacy & Cookie Policy

Products by Perle

specialix Chase Research

Follow Perle

Copyright © 1996 - 2019 Perle. All Rights Reserved

Contact Us
Products
Applications
How to Buy
Support
About Perle
Privacy & Cookie Policy
Follow Perle

Copyright © 1996 - 2019 Perle. All Rights Reserved