【正文】 Digital Communication Channel unit DC_DC DC/DC Converter DCM Dispersion Compensating Module DCN Data Communication work DCU Dispersion Compensating Unit DL Download DTMF Dual Tone Modulation Frequency E East EDFA Erbium Doped optical Fiber Amplifier EC Equipment Controller ECC Embedded Channel Communication ECID Enhanced Card IDentifier 54 ECT Equipment Craft Terminal ECC Embedded Channel Communication EEPROM Electrically Erasable Programmable Read Only Memory EGND Earth Connection EML Equipment Management Layer EOL End Of Life EPLD Erasable Programmable Logical Device EQT Equipment ESD Electrostatic Discharges ETSI European Tele. Standard Institute EOW Engineering Order Wire FEC Forward Error Coorection FPGA Field Programmable Gate Array GND Logical ground diffused on plane (0V) GOSIP Governement Open System Intercinnection profile HDLC High Level Data Link Control HW Hardware HDBK Handbook IEC International Electrotechnical Commission IECB Intra Equipment Card Bus I/F Interface IL Insertion Loss IND INDicative I/O input – output IP Inter Protocol ISO International Standard Organization JRE Java Runtime Environment ITU_T International Telemunication Union –Telemunication LAN Local Area Network LAPD Link Access Protocol D LED Light Emitting Diode LB_ODX Long Band Optical Demultiplexer board LB_OMX Long Band Optical Multiplexer board LB_OMDX Long Band Optical Multiplexer and Demultiplexer board L_IECB Local IEC Bus LOS Loss Of Signal LS Less Significant LSB Less Significant Bit LSD Laser ShutDown LT Line Terminal LTmcs Line Terminal for multi–channel system MAC Medium Access Control MD Mediation Device of TMN ME Management Equipment (referred to OS) 55 MGND Mechanical ground MM Maintenance Memory MNE Master or Mediation Network Element MS Multiplex Section MSB Most Significant Bit NB_OPA_SPV Narrow Band Optical Pre–Amplifier board with SuPerVison N_IECB Network IEC Bus NE Network Element NES Network Element Synthsesis NML Network Management Layer NORM. / . Normal / alarm stop switch NSAP Network Service Access Point nrREP non–regenerative Repeater NRZ Non Return to Zero NRZI Non Return to Zero Inverted NURG Not URGent QUICC Quad Integrated Communication Controller OADM Optical Add Drop Multiplexer OBC On Board Controller OCH Optical Channel ODF Optical distribution Frame OFA Optical Fiber Amplifier OGPI Optical Generic Physical Interface OH OverHead OMS Optical Multiplex Section OS Operation System OSC Optical supervisory channel OSNR Optical Signal Noise Ratio OTS Optical Transmission Section OOF Out Of Frame OS Operation System PI Physical Interface PC Personal Computer PCB Printed Circuit Board PCM Pulse Code Modulation PDH Plesiochronous Digital Hierarchy PDN Public Data Networks P/N Part Number PSU Power Supply Unit RECT REmote Craft Terminal REP REPeater Q3 Interface with Protocol Q3 QECC Interface with Q protocol for Embedded Control Channel RAM Random Access Memory 56 REGEN_10G Regenerator 10 Gb/s STM64 wavelength adaptor RI Remote Inventory RTC Real Time Clock RX receiver SC Slave Card SB_ODX Short Band Optical Demultiplexer board SB_OMDX Short Band Optical Multiplexer Demultiplexer board SER_PLUS Serializer+ board SDH Synchronous Digital Hiearchy SDMA Serial Direct Memory Access SHUT DN Laser Shut down SMEC2 Synchronous Multiplexer Equipment Controller 2 SPI Serial Peripheral Interface SPM Self Phase Modulation SPV SuPerVision (channel) SPV_CPL SuPerVision CouPLer unit SW Software SWDL SoftWare DownLoad SWP SoftWare Product TMN Telemunication Management Network TP Termination Point TCP/IP Transmission Control Protocol/Inter Protocol TRU Top Rack Unit TTP Terminal Test Point TX Transmitter UART Universal Asynchronous Receiver Transmitter URG URGent UIS User Interface Specification USM User Service Manager USART Universal Synchronous and Asynchronous Receiver Transmitter VOA Variable Optical Attenuator WAN Wide Area Network WB_OBA_SPV: Wide Band Optical Booster Amplifier with SuPerVison WB_OLA_SPV: Wide Band Optical In–Line amplifier board with SuPerVison WB_OPA_SPV : Wide Band Optical Pre–amplifier board with SuPerVison WB_OXA_P_20 1480 : Wide Band Optical Double stage amplifier (+20dBm) board with 1480 nm Supervison WB_OXA_P_20 1510 : Wide Band Optical Double stage amplifier (+20dBm) board with 1510 nm Supervison WB_OXA 1510 : Wide Band Optical Double stage amplifier (+14dBm) board with 1510 nm Supervison WB_OXA_P 1510 : Wide Band Optical Double stage amplifier (+17dBm) board with 1510 nm 57 Supervison WB_OXA_P_SPV : Wide Band Optical Double stage amplifier (+17 dbm) board with SuPerVison WB_OXA_SPV : Wide Band Optical Double stage amplifier (+14 dbm) board with SuPerVison WDM : Wavelength Division Multiplex WLA_ : Wavelength adapter board channel ( is the channel number) WLA __ASY: Asynchronous Wavelength adapter board WLA_TS16_1_ Wavelength adapter board optimized for Transmit side channel WLA_RS16_1_ Wavelength adapter board optimized for Receive side channel WLA_TFEC16_ Wavelength adapter board with Forward Error Correction for Transmit side WLA_TFEC16_L16_2 Wavelength adapter board with Forward Error Correction for Transmit side channel with L16_2 host interface. WLA_RFEC16 Wavelength adapter board with Forward Error Correction for Receive side WLA_RFEC16_L16_2 Wavelength adapter board with Forward Error Correction for Receive side with L16_2 host interface. WLA_TRFEC64 Wavelength adapter bidirectional (Transmit and receive) board at Gb/s LIST OF ABBREVIATIONS (1660 PART) ABBREVIATION MEANING ABIL Enabling ABN Abnormal ADM Add/Drop Multiplexer AIS Alarm indication Signal ALS Automatic Laser Shutdown APD Av