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Security Escort | Installation and Setup Guide | 2.0

ment Estimation

EN | 17

Bosch Security Systems | 1/09 | 33831E

Number of Outdoor Receivers

To estimate the number of receivers,

first read Section

2.3.3 Outdoor

Receiver Installation. Assume a

maximum receiver spacing of 90 m (300

ft.) between receivers, in both

directions, for receivers that are not

within 30 m (100 ft.) of a building

with inside coverage. Receivers within

30 m (100 ft.) of a building should be

spaced the same as receivers in the

building (spacing the outside

receivers at a somewhat larger spacing

is acceptable in most cases).

An outside area directly between two

buildings with inside protection needs

no additional receivers if the

buildings are 90 m (300 ft.) or less

apart. If the buildings are more than

90 m (300 ft.) apart the outside

receivers should evenly spaced between

the buildings. Make sure the standard

90 m (300 ft.) spacing is not

exceeded. For outside spacing adjacent

to a covered building, start the 90 m

(300 ft.) spacing at the building

wall.

Figure 3: Determining the Number of Outdoor Receivers Required

by by

byby

30 m

(

100 ft.

)

30 m

(

100 ft.

)

90 m

(

300 ft.

)

90 m

(

300 ft.

)

90 m

(

300 ft.

)

1 - Receivers

2 - Building 1

3 - Building 2

Allowance for Special Coverage

Requirements

For purposes of the bid, the number of

receivers estimated should be

increased by 5% to allow for special

coverage considerations and RF problem

areas.

Number of Transponders

Assume one transponder per building

for indoor installations. If wiring

can be run from other buildings or

from outdoor receivers, they can be

connected to one transponder. Never

exceed the total number of 64 devices

(receivers and alert units) per

transponder. All outside wiring must

be under ground or in metal conduit.

Number of Receiver and Alert Units per

Multiplex Bus

Although each bus can handle eight

receivers and alert units, it is a

good idea to leave some addresses

available on each bus to allow for

future expansion. For systems with a

high number of supervised

transmitters, see Section

3.2.4

Transponder Wiring Notes.

Multiplex Bus Wire

The multiplex bus should be wired with

four conductor 1.2 mm (18 AWG) wire.

The wire should not be paired or

shielded. In the United States this is

the same as fire system wire, except

it should not be red.

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