IP-Transition of Public Safety Related Applications Task Force (PSRA-TF) Committee
May 16, 2015
Contribution
TITLE:
SOURCE*:
ISSUE NUMBER:
Public Safety Related Applications Circuits and Characteristics
VERIZON
ABSTRACT
This table describes public safety related applications and characteristics
Public Safety Related Applications Circuits and Characteristics
Industry/Sector
Local fire and police
Circuits to airport
towers and alarms
Circuits that monitor
railroad crossings
Circuits for sensors
at gas and power
company locations –
other utilities
DSO –
Prot
DDS/Private DSO – Type / Service Svcs,
Line
Voice
Metallic,
Grade
Tele
Burglar/Door Opening
X
Alarm Application / Voice
transmitted by
Grade Special Service (Note 2)
varying
tones/frequencies
Connected to Police
X
Closed Contact Alarms /
Departments for
Metallic Services (Note 3)
things like out-ofhours open doors like
schools
Remote monitoring
X
Monitoring / Digital Data
towers connected to
Service (Note 1)
Air Traffic Control
RR Crossing Gate
X
Closed Contact Alarms /
monitoring
Metallic Services (Note 3)
Example
Monitor and Control X
equipment with
water, waste, energy,
oil, transportation,
telecom and gas
refining industry,
X
x
Supervisory Control and Data
Acquisition (SCADA) / Digital
Data Service (Note 1)
Characteristics
Single circuit to multiple
locations, CPE to generate
tones, monitoring at remote
locations
Contact closure relay
monitoring at remote locations,
high security/intruder
prevention
Remote locations; single circuit
to many locations; typically 56
Kbps DDS circuits
Isolated locations; typically pole
mounted weatherized
customer equipment; single
circuit to many locations;
limited commercial power
availability; monitor health of
gate opening apparatus
Low voltage, remote locations,
multiple circuits to multiple
locations, commercial power
available; low speed data;
contact closure
Meter and alarming
circuits related to
power grid
Control Signals for
High Voltage power
line circuit breakers
X
Circuits supporting
underground
communications
POS swipe machine
X
for subway and tunnel
or extension of
underground
communications
Protective Relay Application
X
X
Used by electrical utilities to
shut down power grid facilities
during an event; equipment
isolation via relay
Voice Application / Voice Grade Remote locations; single circuit
Special Service (Note 2)
to many locations;
underground communications
Note 1: DDS – Low speed, low cost, secure, point-to-point or point-to-multipoint private line data transmission
Note 2: Voice Grade Special Services – T1/DS1, Ethernet access facility point-to-point or point-to-multipoint private line data transmission
Note 3: Metallic Services - 1000 Series or 9000 Series for Local Area Data Svc