Telecommunications Soneplex® Broadband and Soneplex® Loop Extender Systems DS1 Hicap Route Diversity Option

Application Note 1217 Soneplex® Broadband and Soneplex® Loop Extender Systems Telecommunications ®DS1 Hicap Route Diversity Option Overview With the recent introduction of the CPM (Continuous Performance Monitoring) module to the remote QLX product line and Soneplex MPU software release 4.2, DS1 hicap route diversity can now be added to the "path protection" feature associated with many fiber rings and OCn multiplexers. DS1 hicap route diversity allows service providers to extend path protection into the local loop and provide complete DS1 circuit protection for critical hicap customers. A/D Mux A/D Mux Path Protected Ring A/D Mux A/D Mux Path Protected Loop Soneplex System D 2 QLX Remote DS1s Soneplex System Q Q P O 2 Description QLX modules used in the Soneplex Loop Extension chassis accept from one to four "bridged" or redundant DS1 signals dropped from an ADM on a SONET ring. The DS1s are then multiplexed into DS2s for transmission over diverse fiber routes to a QLX remote cabinet on customer premises. The QLXs on customer premises monitor each copy of the DS1s within the DS2 and will select the best quality signal for delivery to the customer. Fiber route diversity is accomplished through the local loop portion of the network to the customer demarc. The Soneplex Broadband chassis with ODS2 modules can also be used when a DS3 is received from the Sonet ring and DS1 hicap route diversity is required to the customer premises. Soneplex Loop 1 to 4 Extender Chassis DS1s Q L X Secondary 1 to 4 DS1s Primary Q L X Q Q C L L P X X M QLX Remote Enclosure 1 to 4 DS1s To End User Soneplex Loop Extender Chassis Soneplex Broadband and Loop Extender Systems Application Note 1217 2 Protection Criteria When optioned for hicap route diversity, the QLX modules at the customer premises monitor each DS1 received from the network for LOS (loss of signal), OOF (out of frame), AIS (alarm indication signal), and EER (error threshold exceeded - user programmable). Switching is invoked only when one DS1 signal copy is of better quality than the other. Failure conditions originating beyond the hicap route diversity path do not cause a switch. Equipment Requirements Line Protection Release 4.2 of the Soneplex MPU (catalog #SPX-MPU0AXX) and the QLX CPM module are required for DS1 hicap route diversity. Line protection continues to be provided as an alternative when using ADC`s QFLC, QLX, and ODS2 modules in any configuration. Soneplex Broadband or Loop Extender 1 to 4 DS1s System O O D D S S 2 2 / / Q Q L L X X Protect Fibers Working Fibers Line Protection 1 to 4 Q Q DS1s L L X X / / Q Q F F L L C C To User QLX Remote or QFLC Remote Soneplex Broadband and Loop Extender Systems Application Note 1217 3 ADC Telecommunications, Inc. 4900 West 78th Street Minneapolis, Minnesota 55435 FAX: (612) 946-3292 For U.S. Sales, Call Toll Free: 1-800-366-3891 International Sales Offices: Belgium 32-2-721-5282 • United Kingdom 44-734-441955 • Montreal, Quebec (514) 677-9166 • Vancouver, BC (604) 270-1675 • Toronto, Ont. (905) 629-3104 • Ottawa, Ont. (613) 723-2171 • Singapore 65-225-8228 • Venezuela 58-2-953-1684 • Mexico City, Mexico 525-658-4519 • Sydney, Australia 61-2-975-1499 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. Application Note 1217 6/95 Original © 1995 ADC Telecommunications, Inc. All Rights Reserved An Equal Opportunity Employer ... - tailieumienphi.vn