SJ-RRS(Radio Relay System)

SJ-RRS(Radio Relay System) Description

SJ - RRS 1. INTRODUCTION OF of SJ-RRS (Radio Relay System) SJ- RRS system is point - to - point digital microwave radio using spread spectrum technology to offer E1 wireless service for line- of - sight distance covering approximately 50Km+. The system operates in the ISM bands of 2.4 - 2.4835GHz and provide ideal wireless interconnection for private wireless access service LAN cellular and PCS system. SJ - RRS radio also offer a number of advantage over classical licensed microwave solution for point - to - point communication where conventional wireless connection are impractical too costly or unavailable. 2. APPLICATION Provides connection between BTSs for cellular system Support emergency service such as a back - up transmission link for a M W or fiber - optic link in case of disconnection and an emergency network for a data. Provides a private links between a backbone network and customers premises for telephone service data transmission facsimile transmission video - conference service OA network service LAN service and more 3. COMPARISON WITH SJ- RRS OPTICAL - FIBER TRANSMISSION SYSTEM Classification Cost Remark Fiber - Optic Transmission System Wiring Work Installation Fee 4 150 30Km Optical - Fiber Installation Fee 740 30Km Optical Transmission SystemInstallation Fee 20 2 Unit Grand Total 4 910 SJ-RRS SJ- RRS 60 2 Unit (4E1) Grand Total 60 4. SPECIFICATION General Characteristic Frequency Range Digital Capacity Maximum Range RF Channel Bandwidth Modification Frequency Stability 2.4 ~ 2.4835GHz 1E1 ( opt. 2E1 or 3T1) Up to 50Km (30mi) line - of - sight 16MHz DSSS CKK 0.0006% System Characteristic Transmission Frame Delay Data Range 2m sec Max 5.5 11Mps selectable