Bosch K2200 Series Guia de Instalação descarregar pdf (Página 28)

K2200 Series | Installation Guide | 5.0 Installation Details EN | 28

Bosch Security Systems | 7/03 | 17375 1.3 / 46513C

In the table at the right record a current consumption for each device fitted:

Table 12: Total Reader Channel Current

Channel

1234

Reader Current 1

35 mA (see Note 1)

Reader Current 2

100 mA (see Note 2)

Wiegand\Magstripe

Reader 50 mA

Module Relays

30 mA

Total: Must not exceed

200 mA/channel

Note 1:

Reader Current 1 applies to the readers with flying

leads

(15 mA idle, 35 mA active).

Note 2:

Reader Current 2 applies to the readers with screw

terminals as well as the panel mount reader.

Note 3:

When using a reader combiner, you should include the

current of the combiner in its column plus the total

current for both readers in the reader column.

Note 4:

Only include a value for the reader current if the

Wiegand reader is powered from the Wiegand interface

unit’s 5 VDC output or the 18 VDC reader supply

Note 5:

Include 40 mA for each AEM that is connected to a

reader channel.

Determining Total Power

The door controller itself consumes 1 A before the

addition of any readers or locks.

For each 100 mA of reader channel current, as

determined above, an additional 150 mA should be

allowed. This is due to several factors involved in the

generation of the 18 VDC VDC supply.

Table 13: Determining Total Power

Door Controller 1 A

Total: A

The above figures are all stated in Amps, 1 A = 1000

mA.

Alarm Controller

The capacity of the battery required should be

calculated based on:

• The current consumption of the alarm controller

(1 A).

• The current consumption of the devices (AEMs,

detectors, etc.) attached to the controller, up to a

maximum of 800 mA

The length of time the system should operate without

mains power.

Note:

Each AEM can be powered from the controller or via a

separate power supply. The current drawn by each

AEM is a maximum of 40 mA.

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