دستگاه تحلیلگر شبکه نوری پژوهشگاه ارتباطات و فناوری اطلاعات - پژوهشکده فناوری ارتباطات

نام انگلیسی :

آخرین وضعیت دستگاه :

محدودیت های دستگاه :

Level Data Signal: ± 1~5V,Nom: ± 2.37 Level (Clock Signal): 0.5~5 Vpp

توضیحات :

این دستگاه با توجه به قابلیت plug in بودن کارت‌ها، توانایی تست همزمان یک یا چند پارامتر توسط کارت‌های مختلف را داراست. که در زیر بیان شده است:  دو عدد کارت OTN که یکی برای سیستم‌هایی با ظرفیت 2.5 G و دیگری برای 10G تهیه شده است که قابلیت تست‌های زیر را فراهم می‌کنند:  OTN Bulk  OTN SDH  OTN SONET  SDH Expert  SONET Expert  دو عدد کارت Jitter/Wander که یکی سیستم‌هایی با ظرفیت 2.5 G و دیگری باظرفیت 10G را پوشش می‌دهد.  کارت OSA برای آنالیز سیستم‌های WDM فراهم شده است که دارای دو پورت همراه با کانال ایزولاتور است انواع اتصال‌های درگاه ورودی: BNC jack, unbalanced, 75 Ω. Bantam jack, balanced, 110 Ω. USB, RS232 External keyboard, mouse, VGA , CD R/W/DVD ROM انواع اتصال‌های درگاه خروجی: BNC jack, unbalanced, 75 Ω. Bantam jack, balanced, 110 Ω. دستگاه ONT-512 دارای پنج ماژول به شرح زیر است: 1- High performance DWDM analyzers BN 3061/91.34 OSA-303 Dual port with drop 10.7 OPTIDAL SPECTRUM ANALYSIS Technical specifications:  Wavelength range: 1250 to 1650 nm  Wavelength calibration internal, online.  Wavelength accuracy :Typ. ±10 pm  Dynamic reng: -75 to +23 dBm  Noise floor RMS (with averaging): 75 dBm  Absolute accuracy(3, 5): ±0.4 Db  Optical return loss: >35 dB  Total safe power: +23 dBm 2- OTN module 10/10.7G-B – 1550 nm , BN 3061/90.32  Line rate 10.709 Gb/s, 9.953 Gb/s , Line code scrambled NRZ  Clock generator:  Clock accuracy and synchronization from external signal:  see clock specifications of ONT-506/512 mainframe.  Selectable clock offset : ± 50 ppm , Step size: 0.1 ppm  Synchronization from external signal: according to clock specifications of the mainframe . Optical interfaces :  The interface meets the requirements of ITU-T G.691/GR.253  Wavelength :1550 nm , Output level: −3 to +2 dBm, Class 1M Laser Product  Receiver Wavelength range : 1260 to 1620 nm  Sensitivity −3 to −14 dBm  Max. input power (destructive power) +2 dBm ,  Measuring optical input power −14 to 0 dBm  Bit rates 622 MHz , 669 MHz  Output level sinusoidal 4200 mVpp Electrical interfaces (only version B):  Impedance AC coupled 50 Ω , Connector type SMA  Generator data signal :  Bit rates, code 9.953 Gb/s, 10.709 Gb/s, scrambled NRZ , Output level >200 mVpp  Generator clock signal :  Bit rates 9.953 GHz, 10.709 GHz , Output level >200 mVpp  Receiver data signal :  Bit rates, code 9.953 Gb/s, 10.709 Gb/s, scrambled NRZ , Input level 100 to 600 mVpp. 3- OTN module 2.5/2.7G-B, 1310 & 1550 nm/electrical , BN 3061/90.27 General/interfaces :  Line rates 2.488 Gb/s, 622/155/52 Mb/s, 2.666 Gb/s (OTN modules only)  Line code scrambled NRZ  Clock generator :  Selectable clock offset ± 50 ppm , Step size 0.1 ppm Optical interface :  The interface meets the specification of ITU-T G.957 / GR.253  Wavelength 1310/1550 nm  Output level −2 to +3 dBm. Class 1 Laser Product  Receiver: Wavelength range 1260 to 1360 nm, 1430 to 1580 nm , Rx offset acceptance ± 100 ppm  Sensitivity all rates −8 to −28 dBm, additionally at 155M, 52M −8 to −34 dBm  Maximum input power (destructive) +3 dBm , Optical power measurement −8 to −34 dBm Electrical interfaces :  Impedance 50 Ω, AC coupled ,Connector type SMA .  Generator data signal:  Bit rates 52 Mb/s to 2.488 Gb/s, 2.666 Gb/s (OTN modules only), Line code scrambled NRZ  Output level >200 mVpp . Generator clock signal :  Bit rates 52 Mb/s to 2.488 GHz, 2.666 GHz (OTN modules only)  Eye clock fclock/4 : Output level >200 mVpp ,  Receiver data signal :  Bit rates 52 Mb/s to 2.488 Gb/s, 2.666 Gb/s (OTN modules only) , Line code scrambled NRZ  Input level 200 to 1000 mVpp .  Receiver clock signal :  Recovered clock fclock/4 , Input level >200 mVpp 4- Jitter module 2.5/2.7G-B ,BN 3061/90.92  Together with module 2.5/2.7G-B (BN 3061/90.27), the jitter module (BN 3061/90.92) provides jitter functions at 155 Mb/s, 622 Mb/s, 2.5 Gb/s and 2.7 Gb/s  Standards : • ITU-T Recommendation O.172 including new appendices VII and VIII • ITU-T Recommendation O.173 • ITU-T Recommendations G.825, G.8251 • Telcordia GR-253 (September 2000) • ANSI standards T1.101, T1.105, T1.105.03. Jitter generator 2.5/2.7 Gb/s :  Meets or exceeds the requirements of ITU-T Recommendations O.172/ O.173.  Bit rate 155.520 Mb/s, 622.080 Mb/s, 2.488320 Gb/s and 2.666057 Gb/s  Offset ± 50 ppm , Modulation internal or external  Jitter modulation signal sine wave. 5- Jitter module 10/10.7G-B, BN 3061/90.93 Together with modules 10/10.7G-B (BN 3061/90.32 or /90.33), the jitter module provides jitter functions at 10 and 10.7 Gb/s. Standards: • ITU-T Recommendation O.172 including new appendices VII + VIII • ITU-T Recommendation O.173 • ITU-T Recommendations G.825, G.8251 • Telcordia GR-253 (September 2000) • ANSI standards T1.101, T1.105, T1. Jitter generator 10/10.7 Gb/s : Meets or exceeds the requirements of ITU-T Recommendations O.172/ O.173. Bit rate 9.953 and 10.709 Gb/s, Offset ± 50 ppm, Modulation internal or external Jitter modulation signal sine wave External modulation input : BNC, 75 Ω , Modulation frequency 0.1 to 80 MHz , Input voltage range 0 to 2 Vpp Jitter versus time : This function is used to record variations of jitter with time and allows the positive and negative peak values, peak-to-peak values, and RMS values to be displayed versus time.