Aritech ATS4000 Servisní příručka stáhnout pdf (Strana 46)

46 ATS Designers Guide

3.2.2.2 Device Addressing.

The Point ID

interface address space contains 256 entries from 0 to 255. This allows

addressing of a different number of devices depending on the number of supported inputs

and outputs. The Point ID

interface assumes sequent addressing of the inputs and

outputs and providing direct access to them in the alarm system. Each device connected

to the bus has an address definable by DIP switch settings – it is the address of the first

input of the Point ID

device – the following inputs and outputs are automatically assigned

the proper addresses. The device maps the PID bus inputs to the system zones

appropriate for the DGP address.

Table 3-10 Point ID

device load.

Product Description Inputs Outputs PID Load

SI-AD Universal, single input module 1 0 1UL(330uA)

AD011 Universal IO module 1 1 1UL(330uA)

AD044

Universal 4I/4O module, external power

supply

4(+4) 4 1UL(330uA)

AD111 IO module, installed inside the sensor 1 1 1UL(330uA)

AP750-AD PIR sensor, range: 7 screens, 15.2m; 1 1 1-10UL(250u-3mA)

EV435-AD PIR sensor, 9/16m, 9 screens 1 1 16UL(4.8mA)

EV435AM-AD

PIR sensor, 9/15m, 7 screens, anti-

masking

2 2 16UL(4.8mA)

3.2.3 ATS1230 Wireless devices DGP

The ATS1230 wireless sensors DGP is a receiver for RF series devices – listed in Table

3-12. The characteristic parameters of the communications protocol are listed in Table

3-11.

Table 3-11 ATS1230 transmission parameters.

Parameter Value

Frequency 433Mhz

Transmission Data batch, asynchronous, ITI

Transmitter testing Random , max. 64 minutes

Packet count 3, Alarm/Tamper 8

Packet transmission time 20ms

Time between packets Random 125 - 487ms

Transmitter code bits 20 bits

Information per packet 66 bits

Communications are unidirectional, the sensor sending packets 58-66 bits long,

containing the identification data, and information about its state, at random time intervals

no longer than 64 minutes. Each time 3 packets (8 in case of activation or sabotage) are

sent at random intervals from 120ms to 450ms. It prevents an accidental signal

overlapping from several transmitters. The receiver device also detects the lack of an

antenna and radio signal.

Each transmitter has a unique, factory assigned, 20 bit code. The unique code used to

identify the device is stored during the programming of the device. Because of that, it is

impossible to substitute the device or to wrongly identify the device by the DGP. Apart

from the code, the transmitter sends information about the state of the sensor (normal

/alarm /tamper), and the battery condition. The RF devices use standard, commonly

available lithium batteries. The average battery life is 4-5 years.

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