Public Safety Data Network
The Public Safety Data Network (PSDN) is an ultra-high speed and flexible fiber optic data network that will serve as a base transport infrastructure and interconnectivity pathway for public safety related applications and services throughout the State. Its primary purpose is to provide the required connectivity for the upcoming implementation of Next Generation (NG9-1-1) services. Additionally, the network will provide a single connectivity source to allow for the integration of systems, applications and currently disparate networks so that vital information and resources can easily be shared amongst the various public safety entities throughout the State. The installation of the fiber and the required network equipment is now complete at every PSAP in the State.
The stand alone, "separate silo", legacy network infrastructure systems that Connecticut public safety agencies utilize today minimally meet the bandwidth requirements for current users and are grossly inadequate for near or long term project future data transmission requirements. Additionally, these stand alone networks lack the high speed universal data connectivity (or have no connectivity at all) that will be required to support upcoming and next- generation applications.
Today, the PSDN will have an overall bandwidth capacity of 10 Gb available to support applications and services. In comparison, most remote sites interconnect today at either T-1 speeds (1.5Mb) or possibly 10Mb, and operate internally at 100Mb or 1 Gb. For reference, a 10 Gb connection is equal to approximately 21,504 T-1's. It should be noted that this far exceeds current and anticipated bandwidth requirements and should provide adequate expansion capacity without additional hardware. However, should requirements necessitate additional bandwidth, the PSDN can be expanded up to 1,600 Gb (1.6 Terabytes) in the near future, without requiring a "forklift" upgrade.
By providing a single ultra-high speed connectivity source to allow for interconnection of the various public safety entities' data networks, the ability to easily share vital data and networking services becomes possible. The PSDN will enhance interoperability capabilities as well as reducing overall costs that would otherwise be incurred to accomplish these tasks, by leveraging a common infrastructure.
Leveraging Connecticut's previous investment in the Connecticut Education Network, DESPP was able to take advantage of the many miles of existing fiber throughout the state. Under the existing state contract for fiber used for this project, extra fiber strands that were already installed on many routes were available to the state at a far lower cost than for completely new installations.
Phase 1 of the PSDN connects DESPP, DAS/BEST and all 106 of our PSAPs, and is budgeted at $27.5 million, funded by the 9-1-1 surcharge. This new high-speed network is a requirement in order to provide Next Generation 911 (NG911) functionalities to all PSAPs throughout the State of Connecticut.
During 2010, Connecticut was successful in leveraging our PSDN investment as the match to obtain an additional $93.8 Million in federal funds from the Broadband Technologies Opportunities Program (BTOP). This federal grant program is providing funding to extend the PSDN to over 400 additional public safety sites at Fire Departments and Police Departments throughout the state, as well as providing connections to extend the Connecticut Education Network. BTOP will complete Phase 1.5 (install PSDN to all Police Departments that are not PSAPs) and Phase 2 (install PSDN to Fire Departments that are not PSAPs) of the PSDN as a single project with no additional state funding required, years earlier than would have been possible in our original plan. The performance period of this grant began September 1, 2010, and all work on this project must be completed by August 31, 2013.
There are 3 primary applications that will initially utilize the PSDN for transport and connectivity:
- Next-Generation 9-1-1 (NG911) Services
- DESPP, Connecticut On-Line Law Enforcement Communications Teleprocessing (COLLECT) System
- Statewide shared radio application for radio interoperability (commonly known as the "P25" controller)
In addition to delivering NG911 calls and data throughout the state, the PSDN will provide a platform for emergency services radio interoperability between municipal police, fire, EMS services throughout the state as well as with and between those agencies and the Connecticut State Police and other state agencies. It will provide criminal justice information systems access to law enforcement agencies throughout the state, greatly reducing our state's current costs for discrete circuits serving the cities and towns.
Summarizing the PSDN features:
- High speed data connectivity to all 104 PSAPs and approximately 411 additional public safety locations
- Fiber optic reliability (99.999%, or "5-9s")
- System architecture utilizing multiple rings and multiple touch points between the rings, constructed with carrier-class equipment provisioned with redundant facilities, all designed to withstand multiple failures without affecting service
- Highly secure implementation, partitioned to protect NG911 service in every instance
- Significant savings over current network costs
- Significant increase in efficiency
- Easy upgradability to provide additional speed and/or connectivity without requiring "forklift upgrades"
- Ability for each PSAP to serve as a connection point for other public safety locations (Local, State, and Federal) to connect into the network
Because of the high number of physical sites to be connected and the funding streams used to support the program, the overall project has been separated into phases:
Phase 1 (Completed):
Phase 1 commenced in 2009, and established the base fiber optic network topology and interconnection of the existing PSAPs, the DESPP HQ building in Middletown and the DAS/BEST data center for identified priority applications. This phase is currently in testing, and encompasses a total of 110 individual sites, utilizing a fiber footprint that includes approximately 2000 miles of existing fiber installation as well as approximately 240 miles of newly constructed fiber pathways in a seven-interconnecting-ring topology utilizing DWDM technologies. It was released for service in the first quarter of 2012.
Phase 2 (funded through BTOP, in progress):
Phase 2 of the CPSSDN provides expansion of the PSDN into Police Departments, Fire Departments and Emergency Operations Centers that are not PSAPs or not co-located with PSAPs. The 9-1-1 surcharge provides the match for this project through its funding of Phase 1. Phase 2 is funded through the BTOP grant.
The expansion will provide secure, high-speed connections to approximately 411 public safety locations, providing criminal justice information systems connectivity where required, and dramatically increasing the reliability of dispatch services at the time of an emergency call. As with Phase 1, all connectivity will be accomplished via dedicated fiber optic cabling to the planned locations utilizing appropriate fiber optic transceivers. Topology will be a mixture of both hub and spoke as well as subtending rings. Each of these spokes or rings will connect to one of the 110 existing Phase 1 locations. Completion of Phase 2 will greatly enhance agency interoperability capabilities, data sharing and overall communications while improving constituent services and safety.
The state has come into compliance with the BTOP grant requirements by completing the build out of Phase 2 of the PSDN by September 1, 2013. The state is currently accepting requests to transport public safety applications on the PSDN.
Governance is required to manage the connections, expectations, service level and costs related to our users taking advantage of any additional capabilities over and above the original three applications — NG911, COLLECT and P25 Controller connectivity — provided in the basic PSDN. DESPP staff is working on the technical aspects of governance at this time. However, as is the case with all shared resources of this type, a governing board is a necessity to deal with the policy decisions that will need to be made for the operation of the system.
PSDN Governance Committee Meeting Schedule
- April 18, 2018
All meetings are held at:
Department of Emergency Services and Public Protection
1111 Country Club Road
Middletown, CT 06457
Hearing Room #348 (Third floor)
Governance Meeting Minutes:
- February 21, 2018
- October 18, 2017
- October 19, 2016
- August 17, 2016
- April 20, 2016
- March 17, 2016
- December 16, 2015
- October 21, 2015
- June 17, 2015
- March 18, 2015
- December 17, 2014
- August 20, 2014
- June 18, 2014
- April 16, 2014
- February 19, 2014
- December 18, 2013
- October 23, 2013
- August 21, 2013
- June 19, 2013
- February 20, 2013
- December 19, 2012
- PSDN Application Form
Status Report-PSDN Service Requests