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ST150

System Overview

ST150 SAFECOM Central Station Operations Manual

1. System Overview

1.1. SAFECOM System Overview

SAFECOM is a long range telemetry communications system for monitoring life safety security alarm panels that are

remotely located at a customer site. The SAFECOM system uses specially designed telemetry transmitters and

receivers to provide a secure and reliable radio communications link between remote alarm panels and a Central

Monitoring Station. The information provided to the Central Monitoring Station allows security personnel or local

authorities to respond immediately and appropriately to all alarm events detected at the customer site.

The SAFECOM system is a security device for telemetry reporting of life safety Burglary and Fire alarm information

using radio as the primary communications path. The system is also listed for commercial fire applications.

The SC9000 Receiver is the center of the entire SAFECOM network. The SC9000 Receiver uses a Compaq Deskpro

IBM compatible personal computer to operate the ST150 Receiver Software and provides radio

communications with

Radio Communicators via the RF2000 Radio Modem. Selected system events are permanently recorded on a Star

Micronics dot matrix printer.

A Radio Communicator is a SAFECOM telemetry communications panel that is located at a customer site; commercial

or residential. The SC9000 Receiver can supervise, monitor, and control up to 299 Radio Communicators through the

SAFECOM system. The actual number of Radio Communicators usable in any specific system is determined by a

number of variables (e.g., polling rates, use of frequency by other radio systems, radio interference, etc.).The receipt of

each message or poll that is transmitted is validated by the receiving site: the SC9000 Receiver or the Radio

Communicator. The receiving site will then transmit an acknowledge message in response.

Supervisory polling is performed by the SC9000 Receiver for each Radio Communicator to verify two-way telemetry

radio communications and the operational condition of the Radio Communicator. The supervisory polling interval is

individually programmable for each Radio Communicator.

The SAFECOM system can be configured to transmit (TX) and receive (RX) on a single radio pair directly from the

central station. This means the SC9000 communicates directly with the Radio Communicators in the field.

The SAFECOM radios can also be configured to transmit and receive on a frequency pair to a repeater located on a

mountain, tower, or high building in the desired coverage area. When the SAFECOM system is set up for repeater

mode, the SC9000 computer communicates with the Radio Communicators through a UL Listed, SAFECOM SC801 or

SC802 Data Repeater,

a commercial grade voice repeater that has been configured with a SAFECOM DP1000

Controller Board. The SC801/SC802 or equivalent repeater is normally installed at a Commercial Repeater Site.

The use of a SAFECOM type or equivalent repeater significantly increases the coverage area (range). Radio area

coverage and reception ranges are also dependent on the extent of a number of environmental effects, e.g.,

propagation losses due to atmospheric conditions, and the proximity of the radio transmission and reception paths to

dense foliage and metal structures.

The SAFECOM radio transceivers are normally available to operate in the 136-174MHz (VHF), 400-512 MHz (UHF),

and 900 MHz ranges. Additional frequency ranges are available upon request. The SC9000 Receiver can communicate

with all Radio Communicators assigned to that controlling network on a single RF channel through one RF2000 Radio

Modem. With the installation of a SAFECOM four or eight port Expander Board, the SC9000 Receiver can

communicate on one to eight independent and addressable RF channels. Each channel can be on a different radio

frequency, or all the channels can be on a single RF frequency. This type of configuration is for those applications

requiring large coverage areas with redundant paths. Each RF channel communicates through a separate RF2000

Radio Modem. With multiple RF2000 modems, the SAFECOM system operates much like a large “cellular type”

network, passing off the Radio Communicator messages to other repeaters when necessary.

The SAFECOM IT1500 Installation Tester tests for a standardized signal level from the remote customer site to the

central station. Through this testing by a sales or service representative, the potential for a valid two-way radio

communications link can be confirmed for a Radio Communicator and the SC9000 Receiver prior to its installation.

1.2. SAFECOM ST150 Receiver Software Overview

The heart of SC9000 Receiver is the Radionics SAFECOM ST150 Software. The ST150 Receiver Software is installed

on a minimum Compaq Deskpro 386N personal computer. The ST150 is a telemetry protocol technology designed to

ensure reliability in long range wireless communications. It continually verifies the integrity of its two-way radio

communications link with the Radio Communicators through supervisory polling. High speed packet telemetry radio

transmissions ensure the timely receipts of polling, acknowledge and alarm messages by the SC9000 Receiver.

The ST150 gives you the ability to customize services and capabilities including variable supervisory polling

parameters, alarm priority status and remote programming and control functions. Changes or upgrades can be

performed in minutes from the SC9000 Receiver computer keyboard.

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Bosch SC8016 Guía de instalación Pagina 5

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