Splitter Modules

Splitter Modules Value-Added Module (VAM) System Overview With the emergence of broadband, service providers are able to offer combinations of data, telephony and video distribution services, increasing their subscriber rates and maximizing revenue-generating opportunities. Value-Added Modules (VAMs) equipped with optical splitters can cost-effectively distribute signals to multiple subscribers. The modules provide operators with unmatched flexibility and functionality. Splitting Up is Easy to Do A VAM splitter module allows service providers to transport a signal from the serving office to the far-end of the network over one fiber before splitting the signal to feed multiple subscribers. The signal travels from the headend to a node site, where it is split multiple times via a predetermined split ratio. The subsequent signals are then sent downstream to subscribers. (See Figure 1.) Monitoring Your Investment Splitter modules are also used as nonintrusive monitoring and testing devices. A VAM splitter module includes separate ports for local testing. When providers split a signal, 90 to 95 percent of the signal is allowed to proceed to its destination and the remaining portion is sent to the local access port to be monitored or tested by an external test device. VAM splitter modules offer providers a wide range of split ratios to accommodate specific application requirements. The ability to easily monitor both directions from both ends of a fiber span greatly reduces the time necessary to locate failures or degradation points. Serving Office Subscriber Singlemode Fiber Splitter Subscriber 1x4 Subscriber Subscriber Figure 1 Value-Added Module (VAM) System Monitor Modules REAR Adapter Port FRONT Adapter Port Connectorized Pigtail (3 mm Jacketed) Bare Pigtail (2 mm Jacketed) OPTICAL COMPONENTS Connectorized Pigtail Figure 2 Value-Added Functionality VAM splitter modules can be tailored to meet application requirements. Modules include most industry standard singlemode and multimode connectors and module inputs and outputs are made via adapter, pigtail or bare fiber depending on requirements. (See Figure 2.) Various combinations of all front access to input/output ports or rear access to both input/output ports are also available. All bare fiber options use 2 mm jacketing. The variety of module configurations allows service providers the opportunity to determine the number and type of optical connections necessary depending on whether a cross-connect or interconnect arrangement is used. Web Site: www.adc.com From North America, Call Toll Free: 1-800-366-3891, Ext. 73475 · Outside of North America: +1-952-938-8080 Fax: +1-952-917-3237 For a complete listing of ADC’s global sales office locations, please refer to our web site. ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101 Specifications published here are current as of the date of publication of this document. Because we are continuously improving our products, ADC reserves the right to change specifications without prior notice. At any time, you may verify product specifications by contacting our headquarters office in Minneapolis. ADC Telecommunications, Inc. views its patent portfolio as an important corporate asset and vigorously enforces its patents. Products or features contained herein may be covered by one or more U.S. or foreign patents. An Equal Opportunity Employer 1226581 5/02 Original © 2002 ADC Telecommunications, Inc. All Rights Reserved ... - tailieumienphi.vn