Primex Wireless, Inc

Primex Wireless, Inc
DIVISION 275313
WIRELESS CLOCK SYSTEM
PART 1 - GENERAL
1.1
GENERAL REQUIREMENTS
A. Furnish and install a complete new wireless clock system. All bids shall
reflect equipment as specified herein.
1.2
SECTION INCLUDES
A. Transmission Systems
B. GPS Receiver
C. Primary Transmitter
D. Clocks - Analog
1.3
REFERENCES
A. Section 270500 Common Work Results for Communications
B. This Technical Specification and Associated Drawings
1.4
DEFINITIONS
A. GPS: Global Positioning System, a worldwide system that employs 24
satellites in an integrated network to determine geographic location
anywhere in the world, and which employs and transmits Universal
Coordinated Time, the world’s most accurate and reliable time.
B. UTC: Universal Coordinated Time
C. NTP: Network Time Protocol, used for synchronizing the clocks on
computer networks and devices from either a public server or a separate
server on a private local area network.
1.5
SYSTEM DESCRIPTION
A. Wireless clock system transmitter shall broadcast either on a regular
standard schedule of continuous operation between 39 minutes past the
hour up to 6 minutes past the following hour, or on a programmable, more
limited, custom schedule agreed to with the Owner. The transmitted signal
will be received by clocks throughout the facility.
B. The system shall provide wireless time from a master time source. This
time source will either be the atomic clock on the GPS system or the clock
from a defined NTP server that the transmitter can access via the customer
Ethernet. The master time will be synchronized to UTC. Hard wiring will
not be required to the clocks installed for the system. Clocks shall
automatically adjust for Daylight Saving Time in locations where DST is
observed.
C. Analog Clocks shall be synchronized to within 10 milliseconds 6 times per
day, and The system shall have an internal oscillator that maintains plus or
minus one second per day between synchronizations, so that clock
accuracy shall not exceed plus or minus 0.2 seconds.
D. The system shall include an internal clock reference so that failure to
detect the master time source shall not result in the clocks failing to
indicate time. Additionally, transmitters will have an internal battery backup
of up to eight hours in the event of a power failure so that settings and the
correct master time will be instantly recalled upon restoration of power.
E. The system shall incorporate a “fail-safe” design so that failure of any
component shall not cause failure of the system. Upon restoration of power
or repair of failed component, the system shall resume normal operation
without the need to reset the system or any component thereof.
F. Clock locations shall be as indicated on drawings, and clocks shall be fully
portable, capable of being relocated at any time.
G. The system must operate in accordance with a “Radio Station
Authorization”, Form FCC 601 – LM, granted by the Federal
Communications Commission (FCC). This license will be issued to and
held by the end user
1.6
REGULATORY REQUIREMENTS
A. Equipment and components furnished shall be of manufacturer’s latest
model.
B. The end user will hold a license, known as a “Radio Station Authorization”
granted by the FCC.
1. This license grants the end user protected use for wireless transmission
at the designated frequency.
2. This license will designate a unique “call sign” for each end user.
C. Transmitter and receiver shall comply with Part 90 of FCC rules as follows:
1. This device may not cause harmful interference
2. This device must accept interference received, including interference
that may cause undesired operation.
3. Transmitter frequency shall be governed by FCC Part 90.35.
4. Transmitter output power shall be governed by FCC Part 90 257 (b)
5. System shall be installed in compliance with local and state authorities
having jurisdiction.
1.7
SUBMITTALS
A. Product Data: Submit complete catalog data for each component,
describing physical characteristics and method of installation. Submit
brochure showing available colors and finishes of clocks.
B. Operating License: Submit evidence of application for FCC Radio Station
Authorization prior to installing equipment. Furnish the license or a copy of
the application for the license, to the Owner/End User prior to operating the
equipment. The original license must be delivered to the Owner/End User.
C. Samples: Submit one clock for approval. Approved sample shall be tagged
and shall be installed in the work at location directed.
D. Manufacturer's Instructions: Submit complete installation, set-up and
maintenance instructions.
E. Floor plans indicating the location of system transmitter(s), approved by
manufacturer, will be submitted to owner prior to installation.
1.8
SUBSTITUTION
A. Proposed substitutions, to be considered, shall be manufactured of
equivalent materials that meet or exceed specified requirements of this
Section.
B. Proposed substitutions shall be identified not less than 10 days prior to bid
date.
C. Other systems requiring wiring and/or conduit between master and clocks
will not be accepted.
D. Other systems using wireless technology in an unlicensed frequency range
will not be accepted.
E. Other systems using wireless technology where the license is held by any
party other than the end user will not be accepted.
1.9
QUALITY ASSURANCE
A. Permits: Obtain operating license for the transmitter from the FCC.
B. Qualifications:
1. Manufacturer: Company specializing in manufacturing commercial time
system products with a minimum of 30 continuous years of documented
experience including 4 years experience producing GPS wireless time
systems.
2. Installer: Company with documented experience in the installation of
commercial time systems.
3. Prior to installation, a site survey must be performed to determine
proper transmitter placement.
1.10
DELIVERY STORAGE AND HANDLING
A. Deliver all components to the site in the manufacturer's original packaging.
Packaging shall contain manufacturer's name and address, product
identification number, and other related information.
B. Store equipment in finished building, unopened containers until ready for
installation.
1.11
PROJECT SITE CONDITIONS
A. Clocks shall not be installed until painting and other finish work in each
room is
complete.
B. Coordinate installation of system antenna for access to the roof to comply
with safety standards detailed in manufacturers instructions.
C. GPS package: coordinate installation of GPS receiver for access to the
roof or exterior sidewall so that the bracket and related fasteners are
watertight.
1.12
SYSTEM STARTUP
A. At completion of installation and prior to final acceptance, turn on the
equipment; ensure that all equipment is operating properly, and that all
clocks are functioning.
1.13
WARRANTY
A. Manufacturer will provide a warranty on GPS receiver, transmitter, and
antenna. All other components will have a 1 year warranty.
PART 2 – PRODUCTS
2.1
MANUFACTURER
A. XR wireless clock system shall be manufactured by Primex Wireless, Inc.,
965 Wells Street, Lake Geneva WI 53147 (800) 537-0464 FAX (262) 2480061
www.primexwireless.com.
2.2
SEQUENCE OF OPERATION
A. Transmitter Operation: When power is first applied to the transmitter, it
checks for and displays the software version. It then checks the position of
the switches and stores their position in memory. The transmitter looks for
the master time source.
2.3
GPS TIME SOURCE
A. With the XR transmitter in GPS mode, it powers a connected GPS engine
mounted with a clear view of the sky. Upon power, the GPS module seeks
the GPS satellites in orbit to determine position and UTC time. Once the
transmitter acknowledges receivable GPS data, it downloads time data and
synchronizes its internal master clock to GPS time. The transmitter then
starts to transmit its internal time once every second. The transmitter
updates its internal clock every time it receives valid time data from the
GPS.
2.4
ANALOG CLOCK OPERATION
A. Apply power or insert batteries. Follow set up procedures detailed in
manufacturer’s instructions.
B. After initial setup, the clock will shut off the receiver. Six times each day,
the microprocessor will activate the receiver and starting with the stored
channel, it will again look for a valid time signal. If necessary, the clocks
will resynchronize to the correct time.
C. If the clock has not decoded a valid time signal for a pre-determined
number of days, it will go to a step mode. Non signal reception can be
caused by low battery voltage. If this occurs, replace the batteries.
2.3
EQUIPMENT
A. General: The clock system shall include a transmitter, a roof or window
mounted
GPS receiver, indicating clocks, and all accessories for complete operation.
GPS RECEIVER
B. GPS roof mounted, with 16-foot cable (5m) attached. Utilize Primex
Wireless 100 ft (30.5m) extension cable
C. The GPS Receiver shall be a complete GPS receiver including antenna in
a waterproof case, designed for roof or outdoor mounting. Provide
mounting bracket for attachment to roof structure.
D. The GPS Receiver cable must be plenum rated where required by local
code.
TRANSMITTER
A. Primex Wireless Model XR01EM, consisting of wireless transmitter with
Ethernet port for NTP time input and GPS receiver for GPS satellite time
input. Unit shall obtain current atomic time from either satellite via GPS or
via NTP through the Ethernet port.
2.4
TRANSMISSION
A. Frequency Ranges: 72.020 to 72.980 MHz, 74.610 to 74.790 MHz, 75.210
to 75.390 MHz, 75.440 to 75.600 MHz. Each range is reserved by the FCC
for licensed fixed mobile broadcasts.
1. Transmission Power: 1 watt (30dBm) maximum
2. Radio technology: narrowband FM
3. Number of channels: 74
4. Channel bandwidth: 20 kHz maximum
5. Transition mode: one-way communication
6. Data rate: 2 KBps
7. Operating range: 32 degree F to 158 degrees F (0 degrees C. to 70
degrees C).
B. Transmitter:
1. Transmitter output power: +26 to +30 dBm
2. Frequency deviation: +/- 4 kHz
3. Transmitter power requirements: 120 VAC 60 Hz
4. Internal power requirements: 5 VDC
5. Carrier frequency stability: +/- 20 ppm
C. Transmitter shall have 74 selectable channels to assure interference-free
reception.
D. Transmitter shall have the following switches:
1. Time zone adjustment switches for all time zones in the world.
Includes: Eastern, Central, Mountain, Pacific, Alaska, and Hawaii.
2. DIP Switch to allow the following configuration: Daylight Saving Time
bypass option, 12-hour or 24-hour display, GPS or NTP time source,
Local or LAN configuration, UTC+ or UTC-, 30 minute UTC offset option.
3. The DIP switches and channel switches are disabled during production
by the manufacturer as the broadcast channel number and time zone
are to be predetermined during the FCC licensing process based on end
user location and existing wireless services operating in the area. The
end user will be required to contact Primex Wireless if, for any reason, a
different broadcast channel is required, since the request would require
a modification of the license, requiring approval by the FCC, or if a
different time source is desired.
E. Transmitter housing shall be black metal case, 16-3/4 inches (424.4mm) by
12 inches (304.8mm) by 1-7/8 inches (46.4mm) in size.
F. An external antenna is included with the transmitter model number.
The antenna connects to the transmitter via a 50-ohm 100ft. coaxial cable.
G. Transmitter housing shall incorporate a display, which shall include the
following:
1. Time readout
2. AM and PM indicator if 12-hour time display is set
3. Day and date readout
4. Time zone indicator including Standard or Daylight Savings Time
5. On screen menu to verify diagnostics, errors, time updates, and switch
settings, toggled by sequence of push buttons next to display
H. Status LEDs: Green to determine broadcast mode, yellow which flashes in
the event of lack of time update after 48 hours, red which flashes to
indicate connection or internal transmitter problem. The green broadcast
mode LED will be solid to indicate the transmitter is broadcasting its signal,
and dark to indicate the transmitter is in standby mode and not
broadcasting.
I. Internal clock: Transmitter shall contain an internal clock such that failure to
update time from source will not disable the operation of the clocks.
J. Power supply:
1. Input: 120 volt AC 50/60 Hz, 0.4 amps.
2. Output: 9 volt DC, 2.0 amps.
K. Antenna: An external antenna is included with the transmitter model
number.
The antenna connects to the transmitter via a 100 ft. (30.5m) 50-ohm
coaxial cable,
Antenna: Dimensions: radiating element 29.4 inches (747mm)
1. Ground radials 41.5 inches (1063 mm)
2. Equivalent flat plate area: 0.68ft2 (0.063m2)
3. Polarization: Vertical
4. H-plane beamwidth: omni
5. E-plane beamwidth: 78 degrees (half power)
6. Max. Input power (75 [email protected] 50 degrees)
7. Gain: 0 dBd
8. VSWR (max)<: 1.5
9. Frequency range: 68-78MHz (broadband)
10. Impedance: 50 ohms
11. Lightning Protection: Direct Ground
12. Connector N female
L. Non penetrating antenna mast kit: Primex Wireless Model ANT-NP1
1. Installer must provide ballast material per manufacturer’s instructions
2. Wind survival rating 120mph (200kph)
M. Traditional analog clocks (battery): Analog clocks shall be wall mounted.
Clocks shall have polycarbonate frame and polycarbonate lens. Face shall
be white. Hour and minute hands shall be black. Frame shall be black
1. 12-1/2 inch (317.5mm) diameter analog clock:
a. Primex Wireless Model 14155
2. 16 inch (406.4mm) diameter analog clock:
a. Primex Wireless Model 14163
3. Analog clocks shall be battery-operated, and shall have 5-year battery
life.
4. Analog clocks shall be capable of automatically adjusting for Daylight
Saving Time. An on-off switch located on the transmitter shall disable
this function if desired.
5. Time shall be automatically updated from the transmitter 6 times per
day.Analog clocks shall remember the time during changing of batteries.
6. 12.5 inch (317.5mm) analog clocks shall have a tamper proof/theft
resistant clock lock mounting slots.
7. Installer will furnish clock batteries in accordance with manufacturer’s
instructions
a. 12.5inch/317.5mm - 2 D cells each unit
b. 16 inch/406.4mm – 2 D cells each unit
8. Analog clock receivers shall be as follows:
a. Receiver sensitivity: >-110 dBm
b. Receiver power: dual lithium battery pack, supplied by manufacturer.
c. Antenna type: internal
d. Antenna gain: -7 dBd
9. If the transmitter stops transmitting valid time signals due to power
failure, the clocks will continue to function as accurate quartz clocks until
a valid time signal is decoded. If signal transmission is not restored after
96 hours, The second hand will “five -step” as a visual indicator that the
signal has been lost. Should the clocks lose power and signal, the
clocks will not function.
10. Wire guards: Provide one for each clock as noted with “WG” on
drawings:
11. Analog clock wire guard Primex Wireless Model 14123, 18 by 18 inch
(457.2 by 457.2mm)
12. Dual D Cell Battery Pack: Primex Wireless Model 14885 contains two
sealed primary batteries.
13. Cable Connection Sealant: West Penn Coaxial Cable Connector
PART 3 – EXECUTION
3.1
EXAMINATION
A. Verify that construction is complete in spaces to receive equipment and
that rooms are clean and dry.
B. Verify that 120 volt electrical outlet is located within 6 feet (1.83m) of
location of
transmitter and the outlet is operational and properly grounded.
3.2
INSTALLATION
A. GPS Unit: Install on roof in location indicated, in clear view of the sky.
Install unit in location free from standing water, and above accumulations of
leaves or debris. Seal cable connection to GPS with cable connection
sealant. Any added cable lengths must be protected from outside
elements.
B. Locate transmitter in a penthouse, electrical closet, or telecommunications
room in a central location in the building. Clearance around all sides of the
transmitter to comply with local building codes.
C. Transmitter is connected to external antenna via a 50 ohm coaxial cable.
Typical length – 100ft (30.5m) Cable routing should comply with ANSI
EIA/TIA-569 and local building codes. If the cable is routed through
conduit, the conduit should be a minimum of 2 inch (50.8mm) diameter.
D. Transmitter enclosure must be bonded to an earth ground per ANSI
EIA/TIA 607, NEC Article 250, and local building codes
E. Attach GPS receiver to transmitter using cable. Set GPS/LAN DIP switch
to GPS.
F. Antenna should be mounted to a mast on the roof of the building
connecting to the transmitter via a 50-ohm coaxial cable. Consult
manufacturer’s instruction manual for specific clearances and mounting
instructions.Antenna must be bonded to an earth ground per ANSI EIA/TIA
607, NEC Article 250, and local building codes.
G. Analog clocks (battery): Perform the following operations with each clock:
1. Install batteries.
2. Set clocks to correct time in accordance with manufacturer's
instructions.
3. Observe analog clock until valid signals are received and analog clock
adjusts itself to correct time.
4. Install the analog clock on the wall in the indicated location, plumb, level
and tight against the wall. If using 12-1/2 inch (317.5mm) clock, attach
using clock-lock hanging method and suitable fasteners as approved by
clock manufacturer.
H. Wire guards: Secure to wall, using approved theft-resistant fasteners.
3.3
ADJUSTING
A. Prior to final acceptance, inspect each clock, adjust as required, and
replace parts which are found defective.
3.4
CLEANING
A. Prior to final acceptance, clean exposed surfaces of clocks, using cleaning
methods recommended by clock manufacturer. Remove temporary labels
from clock faces. Do not remove labels from backs of clocks.
3.5
DEMONSTRATION
A. Provide training to Owner's representative on setting and adjusting clocks,
replacing batteries and routine maintenance.
3.6
PROTECTION
A. Protect finished installation until final acceptance of the project.
3.7
TESTING
A. All devices must be tested at their operational location under normal
operational conditions to assure reception of signal.
END OF SECTION 275313
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