Hiện nay mạng di động Việt Nam đã và đang triển khai mạng di động 3G rộng rãi, vấn đề đối với mạng di động 3G là đường truyền dung lượng cao ngoài yêu cầu về TDM (E1/T1) mạng còn đòi hỏi về Ethernet do vậy thiết bị Pasolink NEO SDH ra đời nhằm đáp ứng yêu cầu này. với phương thức điều chế 128QAM, dung lượng tối đa là 2xSTM-1 (trên mỗi phân cực dung lượng là 01 STM-1) | ROI-S05748-05GE February 2008 CONTENTS PASOLINK NEO 6-52 GHz PDH SDH DIGITAL RADIO SYSTEM Section I DESCRIPTION CONTENTS TITLE PAGE 1 GENERAL DESCRIPTION 1-1 2 SYSTEM CONFIGURATION AND CHARACTERISTICS 2-1 System Configuration 2-1 Performance Characteristics 2-19 General System 2-19 LAN Interface 10 100 Base-T X 2-21 LAN Interface 1000Base-SX LX 1000Base-T GbE 2-25 Service Channel SC 2-26 LCT PNMT Interface 2-26 PNMS Interface 2-26 RF I O Port 2-26 Parallel Alarm Interface 2-27 Wayside 2-27 ODU Outdoor Unit and System performance 2-28 IDU Indoor Unit and System performance 2-32 Interconnection between ODU and IDU 2-36 Hybrid Combiner Divider 2-37 10 dB Coupler 2-38 OMT Ortho-Mode Transducer 2-39 RF Channel Plan 2-40 Power Supply 2-41 CL-1 CONTENTS ROI-S05748 This page is intentionally left blank. CL-2 2 pages ROI-S05748 GENERAL DESCRIPTION 1. GENERAL DESCRIPTION This section provides descriptive information on the PASOLINK NEO radios which are used for the wide narrow band point-to-point digital microwave radio links. The Indoor Unit IDU provides digital PDH 5-48 x E1 1 2 x E3 SDH 1 x STM-1 and or LAN 2P x 10 100BASE-T X 4P x 10 100BASE-T X or 1P x 1000BASE-SX LX or 1000BASE-T signal transmission by the change of the data signal interface card. It can select the modulation method QPSK 16QAM 32QAM 128QAM by software selection depending on the transmission capacity that is configured in the modulator demodulator unit. Note For 52 GHz band only QPSK is available. The Outdoor Unit ODU can be applied for a wide range of RF frequency bands from 6 7 8 10 11 13 15 18 23 26 32 38 52 GHz. Applications using the following redundancy configurations Unprotected 1 0 2 x 1 0 1 Protected 1 1 2 x 1 1 1 and 2-WAY 2 are available for PASOLINK NEO radio systems. Notes 1 XPIC 2 2-WAY Cross-connect Cross Polarization Interference Canceller XPIC system is applied for dual polarized .
