1. PSAP Radio Communications Today and Tomorrow
11/15/2018
PSAP Radio Communications Today and Tomorrow
Public Safety Radio Technology Presentation
Brian Zastoupil
Red River Regional Dispatch Center
11/15/2018

2. Presentation Agenda PSAP Console Technology- Legacy
11/15/2018
Presentation Agenda
PSAP Console Technology- Legacy
PSAP Console Technology- Today
Wide Area Trunked Radio System Overview
High Level Presentation!
I will do my best to stay out of acronym hell!
Disclaimer
Depictions noted are for demonstration purposes only and do not reflect any specific system design.
Presenter is not responsible for errors or omissions in training materials

3. Dispatch Radio Console
11/15/2018
Dispatch Radio Console
If you are responsible for procuring a replacement radio console, it is the objective of this presentation to help you understand the general technology of your system today
This knowledge base will provide a recognition of what technologies a future console system is capable of leveraging

4. Dispatch Radio Console-101
11/15/2018
Dispatch Radio Console-101
Do you know how your radio console works?
A console is NOT “FM” (Freakin’ Magic)!

5. Dispatch Radio Console
11/15/2018
Dispatch Radio Console
A console is NOT a radio!

6. Dispatch Radio Console-Legacy
11/15/2018
Dispatch Radio Console-Legacy
Basic design-Two building blocks
Dispatch Position-Typical
GUI (PC w/Monitor) or Buttons/LED’s (Legacy design)
Interface Box
Microphone, speakers (Select/Unselect, Monitor 1-X) headset interfaces, footswitch etc

7. Dispatch Radio Console Legacy
11/15/2018
Dispatch Radio Console Legacy
Backroom equipment-Typical
Cards which communicate with operator (Dispatch) position
Typically one card per position
Cards which communicate with a circuit
Typically one card per radio “channel”
Circuit is usually connected to a radio/base station/repeater at a remote location (EX tower)

8. Circuit- This is important!
11/15/2018
Circuit- This is important!
IP MUX OR OR
PSAP
Backroom
P25 Conventional Base Radio OR OR
Leased Circuit

9. Dispatch Radio Console
11/15/2018
Dispatch Radio Console
Q&A
Who has “digital” (P25) radio channels into their PSAP?
Of these PSAP’s, which ones leverage the advanced features of P25 (Radio ID, Emergency, etc.)?
If not, why?
Which PSAP’s back up their neighbor for radio communications?
One of the possible reasons is the limitations of the CIRCUIT!

10. 11/15/2018
We are building a foundation of knowledge, so be patient! Questions…so far?

11. Dispatch Radio Console-Today
11/15/2018
Dispatch Radio Console-Today
Basic design-Two building blocks
Dispatch Position-Typical
GUI (PC w/Monitor) Interface Box
Microphone, speakers (Select/Unselect, Monitor 1-X) headset interfaces, footswitch etc
Dispatch interface relatively unchanged from “Legacy”
BUT What really matters is “Beneath the hood”
In this case, the backroom!

12. Dispatch Radio Console Today
11/15/2018
Dispatch Radio Console Today
Backroom equipment-Circuit Based Typical
Equipment may have a different look, but it will still have modules or interfaces to legacy circuits only
May have gateways or Radio over IP interfaces, but they still connect to the same old radio circuits
The equipment will connect to a trunked radio system via wireless radios only (Control stations)
Backroom equipment is NOT capable of a network connection to RFSS (RF Sub System, also referred to as the “Core”)

13. Dispatch Radio Console Today
11/15/2018
Dispatch Radio Console Today
Backroom equipment-Network Based Typical
Will look very similar to a computer network rack. An assembly of servers, switches and gateways.
Backroom equipment connections to RFSS(RR Sub System) via dual network connections (redundancy) IE Patch Cables
Gateways are utilized to connect to Legacy radios
Any controls stations utilized are for backup or recording purposes
Basically network equipment with backwards capability to Legacy circuits

14. Dispatch Radio Console to wide area communications network
11/15/2018
Dispatch Radio Console to wide area communications network
Two Types
Wireless subscriber-unit interface
Wired RFSS Interface (Network)
Wireless
Wired RFSS

15. Dispatch Radio Console to wide area communications network
11/15/2018
Dispatch Radio Console to wide area communications network
Wireless Description
Architecture based in circuit technology
IE Backroom equipment similar to Legacy console systems
Compatible with legacy conventional radio systems
Does not allow for supervisory dispatch (dispatch interrupt) control of wireless radio resources
Dispatch same priority level as any field radio
PSAP Redundancy with neighbors limited (Same as today)
Encryption limited on a per channel talkpath basis
Expanding qty of talkpaths via wireless requires additional hardware and installation
Radio w/antenna system, connectivity, interface port/gateways, etc
Not CSSI Capable (P25 Console Sub System Interface)
Wireless

16. Dispatch Radio Console to wide area communications network
11/15/2018
Dispatch Radio Console to wide area communications network
Wired RFSS Description
Architecture based in network technology
IE Backroom equipment consists of servers, switches and gateways
Backward compatible with legacy conventional radio systems
Allows for supervisory dispatch (dispatch interrupt) control of all trunked radio resources
PSAP Redundancy with neighbors limited by permissions and agreements, not technology
Access to any radio resources network connected to RFSS (Conventional or Trunked)
Encryption is end to end
(IE Encrypted Audio from DISPATCH position to field unit)
Expanding qty of talkpaths (On RFSS) via programming
No additional hardware require
CSSI Capable (P25 Console Sub System Interface)
Wired RFSS

17. NOW TO TIE IT ALL TOGETHER!
11/15/2018
NOW TO TIE IT ALL TOGETHER!
A single trunked radio site has extra capabilities and resiliency over a conventional infrastructure, but the real benefits for public safety are realized when trunked communications sites and PSAP’s are connected (Networked together).

18. Network Diagram-Wide Area
11/15/2018
Network Diagram-Wide Area

19. Wide Area Trunking- Is a Communications Network!
11/15/2018
Wide Area Trunking- Is a Communications Network!

20. Wide Area Trunking-PSAP
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Wide Area Trunking-PSAP

21. Dispatch Radio Consoles and Trunking
11/15/2018
Dispatch Radio Consoles and Trunking
Fact or Fallacy?
I need to replace my radio console to talk on a trunked radio system!
False
If (Name your agency) adopt trunking, we will not be able to talk to my neighbors!
I cannot page (tone and voice) over a trunked system!
True

22. 11/15/2018
Questions?

23. Televate User Study-Summary
11/15/2018
Televate User Study-Summary
Recommended Trunked System Buildout
VHF and 700/800 MHZ
Standards Based System (P25)
Not proprietary (per TIA Standards)
Depicted direct console interfaces in concept diagrams

24. Televate User Study-Summary
11/15/2018
Televate User Study-Summary
What the study didn’t cover
Detailed Design and Review of system
Phase 1or Phase 2 P25?
Phase 1-FDMA Based
Conventional and Trunked Operation
Analog, Digital P25, or Mixed Mode
Phase 2-TDMA Based
Trunked Operation Only
Backward Compatible with all Phase 1 operations

25. Console procurement questions for your vendor?
11/15/2018
Console procurement questions for your vendor?
Is console (X) capable of dispatcher interrupt? (Dispatch supervisory control)
Is console (X) capable of a wired or CSSI connection to a RFSS core?
Is console (X) capable of a wired or CSSI connection to a P25 Phase 2 RFSS core?
Is console (X) capable of emergency radio ID on a P25 trunked system?
How does console (X) handle encryption?
End to end?
Per channel/talkgroup?

26. PSAP Console-What to do?
11/15/2018
PSAP Console-What to do?
Console choice is not mandated!
Window of opportunity
12 out of 22 ND PSAP’s own dispatch equipment reaching end of life.
Measure twice, procure ONCE!
Educate yourself and your local vendors
Keep an eye on big picture of public safety communications in ND (Today and Future)
Take the “long view”
IE Do not simply replace what you currently have

27. DONE! Discussion & Questions bzastoupil@rrrdc.com
11/15/2018
DONE! Discussion & Questions