Aritech ATS4000 Manual de servicio descargar pdf (Pagina 43)

ATS Designers Guide 43

• Remote star

In case the need arises to design a remote star configuration too extensive to allow the

use of the ATS1740 amplifier modules (the total of the branch length is more than 6km),

the fibre-optic modules can be used – Drawing 3-14.

. . . .

ATS1740

. . . .

ATS1740

. . . .

ATS1740

Galvanic insulation

1.5kV

1000m

ATS1743

ATS1743*

Galvanic

insulation

* -Additional power supply necessary

Drawing 3-14 Remote star configuration.

3.2 Local bus

3.2.1 ATS1250/60 access control DGP

3.2.1.1 RS485

The ATS1250/60 access control DGP local bus has the same parameters as the system

bus and is therefore subjected to the same design rules. All system bus specifications –

the wiring, device addressing, topology etc. – hold their power when designing the access

control DGP local bus.

Using the local bus, up to 16 readers and 15 DGP modules can be connected to the

access control DGP. DGP expansions are used in the ATS1260 elevator controller only.

3.2.1.2 Wiegand/Clock&Data Interface

The ATS1250/60 controllers are equipped with 4 interfaces for direct connections with

Wiegand and Clock&Data readers. The interface automatically recognizes type of

connected reader.

The maximum distance from the reader to the controller is 70m – the wiring should be

done using UTP/FTP cat. 5 cables. Connection D0 and D1 within single pair of wires

should be avoided. It is recommended to pair the D0 and D1 signals with the ground. The

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Aritech ATS4000 Manual de servicio Pagina 43