TowerIQ TOWERLINQ Manuel utilisateur

TOWERLINQ

SYSTEM OVERVIEW

Designed for UL60950 certification

March 2023

BRIEF DESCRIPTION OF THE SYSTEM PURPOSE....................................... 2

General Description: ..................................................................................... 2

SYSTEM COMPOSITION AND PARAMETERS............................................. 3

System Purpose: .......................................................................................... 3

Operational Characteristics: ............................................................................ 3

PURPOSE OF DEVICES IN THE SYSTEM...................................................... 7

Brief ......................................................................................................... 7

System

Composition

.....................................................................................

TRANSCEIVER Devices

.................................................................................

Control Devices ........................................................................................... 8

Power Devices ............................................................................................. 8

PURPOSE OF CONNECTORS, CONNECTION OF DEVICES ..................... 10

OPERATING MODES, DESCRIPTION, PURPOSE...................................... 13

STANDBY radio mode

.................................................................................

MONITOR radio mode

................................................................................

ACTIVE radio mode

....................................................................................

INITIAL SETTING ......................................................................................... 15

Frequency Settings ......................................................................................15

Checking Antenna Status ..............................................................................15

PUTTING THE SYSTEM INTO OPERATION ................................................ 16

Checking Antenna Status ..............................................................................16

Apply settings, checking voice........................................................................17

APPENDIX A: ............................................................................................... 18

APPENDIX B1 .............................................................................................. 19

APPENDIX B2 .............................................................................................. 20

APPENDIX B3 .............................................................................................. 21

APPENDIX B4 .............................................................................................. 22

APPENDIX B5 .............................................................................................. 23

APPENDIX B6 .............................................................................................. 24

APPENDIX C: ............................................................................................... 25

APPENDIX D: ............................................................................................... 26

APPENDIX

..............................................................................................

BRIEF DESCRIPTION OF THE SYSTEM PURPOSE

General Description:

TowerlinQ is an active Distributed Antenna System (DAS) that may be used

as a substitution for a traditional passive DAS installation for Auxiliary Radio

Communication Systems (ARCS) in New York City. TowerlinQ meets all

FDNY and New York City Electrical and Building code requirements for ARCS

systems.

TowerlinQ consists of one or more Dedicated Radio Controller (DRC), a single

Node Controller or Hub, and a number of distributed active transceiver

NODE’s (up to 39). Each NODE provides reception of two narrowband radio

channels (uplink) in the ARCS frequency range (450 – 520 MHz), and

subsequent signal amplification, normalization, and retransmission as two

downlink channels for two-way radio communication within a single building.

The signal received by one TowerlinQ NODE (TQN) is transmitted by all other

TQN to ensure radio coverage throughout the entire building. The signals are

converted to digital form and are propagated through

the distributed network

based on 2-hour fire riser rated twisted pair cables instead of non-fireproof

coaxial cables used in ordinary DAS.

TowerlinQ system implements a Controller-Agent architecture. It includes one

TQN HUB transceiver and a custom number of TQN transceivers. All system

activities (data exchange, radio operation, etc.) are controlled by the HUB.

TQN only respond to HUB commands with a predefined response

behavior and data streams if present. In addition, the HUB responds to

external commands and transmits data via a command interface (Ethernet)

using an embedded web application.

SYSTEM COMPOSITION AND PARAMETERS

System Purpose:

■

The main feature differentiating feature of TowerlinQ versus

traditional ARCS systems is the distribution of digitized RF data over

2-hour fire and riser rated twisted pair cabling instead of traditional ½

inch coaxial cable. The TowerlinQ fire rate cable does not require

installation within 2 hour fire rated enclosure which is time consuming

and costly while limiting installation options in pre-existing buildings.

■

This system is intended to be installed in high-rise buildings in

accordance with New York City code requirements.

■

The system is designed to operate as point-to-multipoint RF bi-

directional repeater. Expected system topology is following: (see

APPENDIX A).

Operational Characteristics:

■

The system operates inside the building only and is configured to minimize

RF interference beyond the building enclosure.

■

The system is designed to stay online for at least one year before a required

annual inspection.

■

The system is designed to be powered by one or more 24VDC,

10A power supplies depending on the number of installed TQN

nodes.

■

The TowerlinQ system monitors power supply health (AC power input

and battery status) and will alarm upon loss or failure indication.

■

The system is designed to operate 24 hours in standby mode and 12

hours in active communication mode.

■

The power supply is equipped with a 720 Whr backup battery sufficient for 12

hours of continuous service in the event of loss of mains power.

■

The system is designed to be able to actively serve ARCS Channel 11

and Channel 12 simultaneously. Frequencies used for Channel 11

and Channel 12 are:

Channel 11:

■

Downlink: 483.0125 MHz

■

Uplink: 486.0125 MHz

■

Channel width (both downlink and uplink): 25 kHz

■

Max allowed output power: 30dBm

■

Required sensitivity: -95 dBm

■

Modulation: analog FM

■

Duplex: half-duplex

Channel 12:

■

Downlink: 484.7625 MHz

■

Uplink: 487.7625 MHz

■

Channel width (both downlink and uplink): 25 kHz

■

Max allowed output power: 30dBm

■

Required sensitivity: -95 dBm

■

Modulation: analog FM

■

Duplex: half-duplex

Note: Although both channels are half-duplex, simultaneous operation of

channel 11 and channel 12 implies overall duplex communication scheme,

since the TQN NODE can receive on channel 11 and transmit on channel 12

or vice-versa.

In order to achieve required isolation between RX and TX path, it is

allowed

to reduce output power of the TQN NODE to 15 dBm.

■

The System is designed to operate with folded dipole antennas.

Antenna specs:

Model: ANT450D

■

Dipole Antenna

■

Pattern: Adjustable, Offset Circular, Cardiod, Bi-Directional

■

Effective Gain: 1-2.5 dBd

■

Frequency Range: 406-512 MHz

■

Power Rating: 500 watts

■

Impedance: 50 Ohms

■

Vertical Beamwidth: 71 Degrees

■

VSWR: 1.5:1 or less

■

Dimension: 13 X 12 in.

■

Maximum Exposed Area: 0.27 ft.²

PURPOSE OF DEVICES IN THE SYSTEM

TowerlinQ - is a distributed active DAS auxiliary radio communication system

(ARCS). It's intended to be used as a substitution of passive distributed

antenna systems (DAS) in auxiliary radio communication systems. TowerlinQ

operates inside the building only and unlike traditional public safety radio

systems it does not provide communication outside the building.

TowerlinQ consists of one or more Dedicated Radio Controller (DRC), a single

TQN Node Controller or Hub, and a number of distributed active transceiver

TQN NODE’s (up to 39). Each TQN NODE provides reception of two

narrowband radio channels (uplink) in the ARCS frequency range (450 – 520

MHz), and subsequent signal amplification, normalization, and retransmission

as two downlink channels for two-way radio communication within a single

building.

The signal received by one TQN is transmitted by all other TQN to ensure

radio coverage throughout the entire building. The signals are converted to

digital form and are propagated through

the distributed network based on 2-

hour fire riser rated twisted pair cables instead of non-fireproof coaxial cables

used in ordinary DAS.

The TowerlinQ system consists of one or several Dedicated Radio Console

(DRC), up to 39 TQN TRANSCEIVERs, one of which serves as HUB, others -

as NODEs. Each TQN TRANSCEIVER includes two antennas, one receiving

and other transmitting. Additionally, the system can utilize one or several

Repeaters to

extend the operation distance.

(APPENDIX B1)

System Composition

The system includes devices:

TRANSCEIVER Devices

The TowerlinQ Node (TQN) is a universal TRANSCEIVER that can act as

both a HUB and a NODE. There can only be one HUB in a system. The

Hub’s role is to dispatch all data and commands within a system. There can

be up to 39 TQN NODEs per system. The number depends on a number of

TQN is determined by a number of parameters including coverage area and

building construction.

The TowerlinQ Repeater (TQR) is a signal repeater in the TowerlinQ network.

The repeater does not have a radio signal TRANSCEIVER. Its task is to

synchronize two physically separated sections of TowerlinQ networks. The

TQR is required to increase the length of the TowerlinQ network beyond the

standard 1000m cable length, and thereby increase the number of supported

TQN which also increases the RF coverage area as required by the building

square footage.

Control Devices

The Dedicated Radio Controller (DRC) is a system command/control unit with

voice handsets, information display and control buttons. The DRC is required

to display information about the system alarms, triggers, and manage the state

of the system.

Power Supply Devices

The TowerlinQ system requires an external power supply with battery backup

for 24VDC power and 12 hour active service in the event of mains power

loss. TowerIQ can provide the standard recommended Potter power supply

(PS10) for this purpose.

In the event of AC mains failure the PS10 can provide power to the system

from its own internal battery. When external AC power is available, it

charges its battery. Recommended load for each power supply is 3 TQN or

TQR devices. Thus, if there are a total of 30 devices in the first and second

groups, then 10 power supplies will be required. The distribution and

connection diagram must be viewed in accordance with the design

documentation.

PURPOSE OF CONNECTORS, CONNECTION OF DEVICES

Network (HUB)

“Network (HUB)” is used to connect HUB to the DRC (APPENDIX B2)

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