MRV Communications TS700/100, TS700/155, TS800/155, TS700/G user manual AppendixG, FSO Chaining

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M R V C o m m u n i c a t i o n s , I n c . – I n s t a l l a t i o n M a n u a l

AppendixG

FSO Chaining

What is Chaining?

The Chaining of FSO is required when the two sites are connected by more than one link using at least one additional building as a mid-point.

When is the Chaining required?

The Chaining of FSO links is required in the following cases:

a)When there is no direct line of sight between the sites;

b)When the distance between the sites is too long;

c)When the distance between the sites is reachable with one link but the customer wants much more Power Budget for higher reliability.

A

Fig G.1:

As there is no line of sight from A to B, we are using C as a repeater point. On C rooftop we used “Direct Chaining connectivity

C

B

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Contents UserManual UserManual TableofContents P E N D I FCC Notice StandardsStandards Compliance CE MarkDisclaimer MRV  Laser Safety CertificationOther Standards TrademarksAboutthisUserManual SafetyRequirements Before InstallingServicing Carefully Read the Entire Manual Before Installing IntroductionTheProduct Using the Part Number for OrderingModels Part Number Description Front MRV Back Panel Description TS800/155 Standard Model DS1 Toggles Data Rate DIP switch TS800/155-F Standard Model including Fusion option Fusion Operation Mode RF TransceiverFusion 5b TS & FusionTS700/100 Fast-Ethernet System OFF Auto-negotiation, on Forced MRV Display LEDs,Dry Management Monitoring and Management optionsDry contact Only TS800 Fiber Connection Typical ConnectionCopper Connection Orientation SiteSurveyLine of Sight Location & RangeConsult Factory in Case of Doubt Optimal Mounting Mounting Environment & Stability Unacceptable MountingPage Wall Mounting using JMP and JMB Transmitting through a Window12 shows the arrangement for transmitting through a window Data/Signal Cabling PowerInfrastructure Handle the Fibers Very Carefully Compatibility SetupBenchTest Test equipmentTS700/100Fastethernet Bench test IR linkIndicators Display and ResultsReceived power Expected ResultsAccessories InstallationDescription Part Description TereScope Parts External viewAiming Head Adjustment and Locks Mounting Installer Tool Kit JITK-LDetachment of the TS from the JMP-L Mounting the accessories Standard position aSpecial Mounting Mounting on the floorMounting on a fragile/crumbly wall JMP-LAttachment of the Transceiver TereScope Head 17 Alignment kit mountedon JMP-L Back viewAimingProcedure Powering on the TereScopeGeneral ProcedureTransceiver Alignment Tools and EquipmentFine Alignment 13 Position after the horizontal aiming 15a and 6.15b Alignment screws Before Closing the Rear Door InstallationCompletionLink Operating Test Visual Inspection17 Mounted TereScope Left View Accuracy should be examined and restored if necessary MaintenancePeriodic Visits Appendix a TS700/100 Fast-Ethernet Light TS800/155 high speed Light TS700/G Giga-Light Appendixb Appendixc Packing box containsAppendixd Where to use List of the Tools Supplied by MRV CommunicationsIntroduction Points to RememberInterference Figure E.3 Active Transmitters Shown Darkened Page Appendixf Effect of Wind on Terescopes AppendixG FSO ChainingUse the indoor switch in building C for the chaining Indirect ChainingFSO products & Chaining Product series No of chained links Appendixh Site survey Installation System failure Appendixi