Support the 8G,13G and 15G frequency band. The Max capability16×E1: ? Channels band:7MHz/14MHz/28MHz,Transmissions rate: 4E1/8E1/16E1 ? Modular design and frequency synthesize in the whole band to sure more stability of the system ? Design building on LSI. ? Apply the FEC and Viterbi code and update the receiving ability of system. Expand error threshold. ? Remote to set the transmission capability and work frequency by software. ? Voice and data channel: RS232 port:2 RJ11 port:1 RS485 port:2 and S232:1 ? It is available to test or fault dictation by local and remote cycle. ? Set all kinds of parameters and monitor equipments running by LCD and the adjust keys. ? The Max distance is 300M between IDU and ODU. ? Voltage:DC-48V/±24V/AC220V ? Network management is powerful: Build on SNMP protocol and support Windows 98/NT/2000; Modular design, Mulit-clent and mulit-OS Operation and maintenance is easy. Update or modify or test is simple. Have character management, configure management, safe management and fault management. Collect history/real-time data by needs. Frequency 8GHz 13GHz 15GHz System parameters Code: 34B1H+NRZ IF: 1~2GHz System capacity: 4×E1,8×E1,16×E1 Error rate:<10-11 Transmission units Frequency source: Digital Phase-Locked Frequency Synthesizer, Broad band. Frequency stability: ±5ppm Modular mode: QPSK FEC: 7/8 Convolution Codes Channel band:(MHz) 4E1/7.0,8E1/14.0,16E1/28.0 Transmission power Standard power +17dBm +13dBm +13dBm The Max power +23dBm +17dBm +17dBm Receiving units local oscillations: Frequency synthesizer, Broad band Frequency stability: ±5ppm NF: <4.0dB Modular Mode: QPSK Error check: VITERBI code AGC range: +10dB~-45dB Receiving threshold level 4×E1 8×E1 16×E1 BER=1×10-6 -83dBm -81dBm -79dBm BER=1×10-3 -85dBm -83dBm -81dBm Service channel Data channel: RS232 ports:2, Data rates:110~9600bps Digital tone channel: PSTN interface for service Service tone Concatenated port: 2 Network management ports:RS485 and RS232 Environment IDU: Temperature: -5~+45?, Humidity: 20%~90% ODU: Temperature: -30~+60?,Humidity: 0~100% Electronic characters Output voltage: -24V, -48V ,+24V Power:< 25W Antenna 0.6M Antenna Gain 31dB 35dB 36dB 1.2M Antenna Gain 37dB 41dB 42dB 1.6M Antenna Gain 40dB 44dB 45dB 2.0M Antenna Gain 41dB 45dB 46dB Connection port BJ100 BJ120 BJ140 Polarization mode Vertical. PAL, Horizontal Network management Interface: RS485/RS232 or Dial Modem data rates: 9600bps OS: Windows95/Windows NT/ASCII code terminal Management software: JHTNET VER2.0 Port parameters E1: 2.048Mbps E1code: HDB3 E1 connection mode: Coaxial Drop Cable IF input/output impendence: 50O IF input/output return loss: > 26dB Antenna: BJ-100waveguide/BJ-120waveguide/BJ-140waveguide Physical characters IDU Vol: 482×260×44.5(mm) Weight: 2.0kg ODU(Without antenna) Vol: Big mode: ODU—?400×130(?) Little mode: ODU--260×260×110(?) Weight: 6.0kg