Download C. Definitions and Abbreviations

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.
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Appendix C
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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.
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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.
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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.
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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
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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
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