Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
California Department of Water Resources RFP DWR-08-001 Appendix C – Definitions and Abbreviations C. Definitions and Abbreviations Following are a list of definitions and abbreviations as they apply to this RFP. Definitions Area – In relation to the SONET system, a portion or SONET ring hat exists along the main stem of the CA Aqueduct between backbone sites. Area Coordination Center (ACC) – Facility in a field division that coordinates activities within the field division with the POC, outside agencies, and the public. The ACC also coordinates operations with the POC and acts as primary control of the field division’s facilities when the POC is unable to. Backbone – In relation to the UCS, in general a portion of the system (such as a SONET Ring#14) traversing along the main stem of the CA Aqueduct that typically contains the DWDM sites. Branch – In relation to the fiber optic system, a physical spur or part of the SONET system that follows along one of the Branch Aqueducts. Branch Aqueduct – North Bay Aqueduct, South Bay Aqueduct, Coastal Aqueduct and West Branch. CALNET – State of California contracts with AT&T and Verizon for telecommunications and network services. These contracts must be used for mandated leased telecommunications services unless an exemption is obtained from the Department of Technology Services. Check Structure – Site that contains facilities to regulate water flow in an open channel aqueduct. Coarse Wavelength Division Multiplexing (CWDM) – A technology which delivers up to 16 wavelengths onto a single fiber. CWDM technology uses an International Telecommunications Union (ITU) standard 20 nm spacing between the wavelengths, from 1310 nm to 1610 nm. Collapsed SONET Ring – When both transmission paths from each node in a SONET ring architecture (see definition for SONET Ring below) utilize fiber within the same cable. This usually occurs when a fiber optic cable is installed along an aqueduct, pipeline or transmission line route where a geographically diverse route is not available. A collapsed ring will provide an alternate path in the event of an equipment failure, however, a fiber cable cut will isolate the portions of the system on each side of the cable cut. Component - An individual unit of a telecommunications system or subsystem, separately identified by a type and/or model number, comprised of, but not limited to, mechanical, electromechanical, and electronic parts, microcode, and special features installed thereon and including any necessary software. DECnet – A proprietary suite of network protocols created by Digital Equipment Corporation, originally released in 1975 in order to connect two PDP-11 minicomputers and evolved into one of the first peer-to-peer network architectures. October 7, 2009 Appendix C C-1 California Department of Water Resources RFP DWR-08-001 Appendix C – Definitions and Abbreviations Dense Wavelength Division Multiplexing (DWDM) – A wavelength multiplexing/demultiplexing technology that combines data from different sources together on an optical fiber, with each signal carried at the same time on its own separate light wavelength. Using DWDM, up to 80 (theoretically more) separate wavelengths or channels of data can be multiplexed into a single light stream and transmitted on a single optical fiber. Digital Access Cross-connect System (DACS) – A DACS allows the 24 individual DSO channels of a DS1 line to be digitally redistributed among any of the other DS1 lines connected to the system. Typical DACS hardware is designed for 8 or 16 DS1 lines. Digital Signal 0 (DS0) – A basic digital signaling rate of 64 Kbps, corresponding to the capacity of one voice frequency equivalent channel. Digital Signal 1 (DS1) – DS1, also known as T1, is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America to transmit voice and data between devices. The data rate for this type of signal is 1.544 Mbps, which is equivalent to 24 DS0 signals. Digital Signal 3 (DS3) – A digital signal level 3 T-carrier, also be referred to as a T3 line. The data rate for this type of signal is 44.736 Mbps and can carry 28 DS1 or 672 DS0 signals within its payload. Drop-and-Insert Multiplexer – A drop-and-insert (D/I) multiplexer is a special version of a multiplexer which has the capability of pulling out and re-inserting subsets of the full complement available channels. Erbium Doped Fiber Amplifiers (EDFA's) – An optical repeater device that is used to boost the intensity of optical signals being carried through a fiber optic communications system. Failure – Loss of a communication link or node which may be due to a fiber optic cable break, leased circuit outage, transmission equipment breakdown, communications power outage, or any other cause. Field Division – Geographic area that is an operations and maintenance unit within the SWP. First Level Technical Support – Manufacturer-certified technician trained to maintain the UCS equipment and able to diagnose and repair routine system problems. Freeware – Copyrighted software application offered to user at no monetary charge or for a nominal usually voluntary fee. Grooming - the process of grouping many small telecommunications flows into larger units, which can be processed as single entities. Hydro Site – Structures along SWP aqueducts such as check sites, dams, intake structures, and delivery points. International Telecommunication Union (ITU) – The leading United Nations agency for information and communication technology. October 7, 2009 Appendix C C-2 California Department of Water Resources RFP DWR-08-001 Appendix C – Definitions and Abbreviations Internet Protocol (IP) – A data-oriented protocol used for communicating data across a packetswitched network. Joint Operations Center (JOC) – Facility that houses the Project Operations Center (POC) and staff for various divisions. Major Components – The SONET multiplexer, Dense Wavelength Division Multiplexer, Erbium-Doped Fiber Amplifier, Course Wavelength Division Multiplexer, T1 Multiplexer, Digital Access Cross-Connect System, Element Network Manager and Network Synchronization System equipment procured and installed by the Contractor in the UCS. Muxponder - The muxponder (from multiplexed transponder) has different names depending on vendor. It essentially performs some relatively simple time division multiplexing of lower rate signals into a higher rate carrier within the system (a common example is the ability to accept 4 OC-48s and then output a single OC-192 in the 1550-nm band). M1-3 Multiplexer – An M1-3 multiplexer combines 28 DS1 signals into one DS3 signal. Normal Operations State – The state of the upgraded communications system after complete cutover (migration) of network traffic from the existing system to the upgraded equipment. Notice to Proceed – Synonymous with Contract Award. OC-3 Multiplexer – A synchonous multiplexer following the Bellcore SONET standard for optical carrier transmission at 155.52 Mbps providing 2016 DS-0’s, 84 DS-1’s, three (3) DS-3’s, or three (3) STS-1’s or a combination thereof. Operations and Maintenance (O&M) Center – Site in a field division that is the operations and maintenance headquarters for the field division. The site is staffed with a large number of employees that conduct support services for the field division. Parallel Operations State – The state of the overall communications system (existing plus upgraded) after installation and startup of the upgraded equipment but before complete cutover (migration) of network traffic from the existing to the upgraded equipment. Project Operations Center (POC) – Control center from which the scheduling and coordination of water deliveries and energy (both sales of power generated and purchases of power required for operation) is performed. Once these schedules are complete, the POC initiates execution of the commands to control the waterways, pumping plants, and generators along the SWP. Region – In relation to the UCS, isolated portions (SONET Rings) from the contiguous main stem of the CA Aqueduct RTU (Remote Terminal Unit) – Field installed unit which monitors and controls water transmission system devices. Remote RTUs report to the Area Coordination Center via the existing remote communication subsystem. The Remote Terminal Units contain all logic necessary to control the transmission system process located at the RTU location. October 7, 2009 Appendix C C-3 California Department of Water Resources RFP DWR-08-001 Appendix C – Definitions and Abbreviations Second Level Technical Support – Manufacturer-certified equipment specialist who has received in-depth, specialized training and experience, and possesses extensive diagnostic ability specifically designed to assist on difficult or complex problems. SONET ADD/DROP Multiplexer – A device that multiplexes and demultiplexes voice, data, and video channels into a SONET compliant optical signal for transport over a fiber optic cable. SONET Ring – The most common architecture used in SONET technology. SONET rings, known as "self-healing rings," use two transmission paths between network nodes. If there is a failure in one transmission path, the other may still be available, provided the second is not in close proximity to the first and also damaged. For the best security against failure, different physical routes are used for the two paths. STS-1 – An electrical synchronous transport signal of 51.84 Mbps consisting of 672 DS-0’s that is the electrical equivalent of an optical OC-1 signal. Synchronous Optical Network (SONET) – A method for communicating digital information over optical fiber. The method was developed for transporting large amounts of telephone and data traffic and to allow for interoperability between equipment from different Contractors. Time Division Multiplexing (TDM) – A technique in which two or more signals or bit streams are transferred apparently simultaneously as sub-channels in one communication channel, but are sequentially interleaved in accordance with predetermined time slots. In a DS1 system, for example, the time domain is divided into 24 recurrent timeslots of fixed length, one for each DS0 sub-channel. TDM is used for circuit mode communication with a fixed number of channels and constant bandwidth per channel. Transponder – A device that receives, amplifies and retransmits an optical signal on a different frequency. Upgraded Communications System (UCS) – The SWP upgraded communications system after the completion of the Contractor’s work as defined in the RFP. Wavelength Division Multiplexing (WDM) – A technology which multiplexes multiple optical carrier signals on a single optical fiber by using different wavelengths (colors) of laser light to carry different signals. This allows for a multiplication in capacity, in addition to making it possible to perform bidirectional communications over one strand of fiber. 1+1 Optical Path Switching – equipment includes provisions for the use of a primary and backup fiber optic pair. October 7, 2009 Appendix C C-4 California Department of Water Resources RFP DWR-08-001 Appendix C – Definitions and Abbreviations Abbreviations AC ACC ANSI ASTM BER BPS CAISO CCITT COTS CWDM dB dBm DACS DC DGS D/I Mux DSU DS0 DS1 DSX DWDM DWR EIA ENM ESF FDT FO FOC FXO FXS Gbps GHz Hz ITU JOC Kbps KHz Mbps MB MHz MMF ms Mux NEC NEMA NFPA Nm NMS Alternating Current Area Coordination Center American National Standards Institute American Institute of Testing Bit Error Rate Bits per Second California Independent System Operator International Telegraph and Telephone Consultative Committee (see ITU) Commercial Off the Shelf Software Course Wavelength Division Multiplexing Decibels Decibels relative to 1 milliwatt Digital Access and Cross Connect Switch Direct Current Department of General Services (State of California agency) Drop and Insert Multiplexer Data Service Unit Digital Service Level 0 Digital Service Level 1 Digital Cross Connect (See DACS) Dense Wavelength Division Multiplexing Department of Water Resources Electrical Industries Association Element Network Management Extended Superframe Functional Demonstration Tests Fiber Optic Fiber Optic Cable Foreign Exchange Office Foreign Exchange Subscriber Giga (one billion) bits per second Gigahertz Hertz International Telecommunications Union (replaced CCITT in 1993) Joint Operations Center Kilo (one thousand) bits per second Kilohertz Mega (one million) bits per second Megabyte Megahertz Multimode fiber Millisecond Multiplexer National Electrical Code National Electrical Manufacturers Assoc. National Fire Prevention Assoc. Nanometer Network Management System October 7, 2009 Appendix C C-5 California Department of Water Resources RFP DWR-08-001 Appendix C – Definitions and Abbreviations NSS O&M OAM&P OC-3 OC-12 OC-48 OTDR PRBS PLC RF RFP RMON Rx SCADA SFP SMF SNMP SONET STS-1 SWP TDM TL1 TO Tx UBC UCS UPS VAC VDC VF WAN WDM Network Synchronization System Operations and Maintenance Operations, Administration, Maintenance & Provisioning Optical Carrier Level 3 Optical Carrier Level 12 Optical Carrier Level 48 Optical Time Domain Reflectometer Pseudo Random Bit Sequence Programmable Logic Controller Radio Frequency Request for Proposal Remote Monitoring Receive or receiver Supervisor Control and Data Aquistion Small Form-factor Pluggable Single-mode fiber Simple Network Management Protocol Synchronous Optical Network Synchronous Transport Signal Level 1 State Water Project Time Divison Multiplexing Transaction Language 1 Transmission Only Transmit or transmitter Uniform Building Code Upgraded Communications System Uninterruptible Power Supply Volts, Alternating Current Volts, Direct Current Voice Frequency Wide Area Network Wavelength Division Multiplexing October 7, 2009 Appendix C C-6