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Security Escort | Installation and Setup Guide | 2.0

ment Estimation

EN | 16

Bosch Security Systems | 1/09 | 33831E

2.2 Pre-Bid Equipment

Estimation

The pre-bid equipment estimation is

performed prior to bidding the

installation. At this point, it must

be determined what type of coverage is

desired, and where the coverage is

required. For example, the amount of

equipment required for a full-coverage

(indoor and outdoor) system in a

multi-building application is greater

than an installation that requires

outdoor only coverage. The customer

should be consulted and the areas of

most concern should be given special

consideration.

2.2.1 Initial Equipment Estimate

Number of Indoor Receivers

To estimate the number of indoor

receivers, first read Section

2.3.2

Indoor Receiver Installation. Assume

the receivers are placed on a grid

with a maximum spacing of 25 m (80

ft.) between receivers for standard

construction. In multi-floor

applications the receivers on each

floor must be placed directly above

the receivers on the floor below (this

is required for proper floor-to-floor

location).

For example, to determine the number

of receivers required to protect a

building of standard construction of

60 m x 30 m (200 ft. x 100 ft.) and

four floors:

1. To determine the number of

receivers in each direction, divide

each dimension of the building by

25 m (80 ft.), drop the remainder,

and add 1.

For example:

• 60 m/25 m = 2.4, becomes 2, add

1 = 3

(200 ft./80 ft. = 2.5, becomes

2, add 1 = 3)

• 30 m/25 m =1.2, becomes 1, add 1

= 2

(100 feet/80 feet =1.25, becomes

1, add 1 = 2)

2. To determine the number of

receivers required per floor,

multiply the number of receivers in

one direction by the number of

receivers in the other direction:

(3 times 2 = 6) 6 receivers per

floor

3. To determine the total number of

receivers, multiply the number of

receivers per floor by the number

of floors:

(6 times 4 = 24) 24 receivers for

the building

Each floor would require 6 receivers,

resulting in a total of 24 receivers

to protect this building.

For the best location accuracy,

consistent receiver spacing is

important. Do not place receivers

significantly closer in one section of

a building than another section.

Figure 2: Determining the Number of Indoor Receivers Required

60 m

(

200 ft.

)

25 m

(

80 ft.

)

25 m

(

80 ft.

)

30 m

(

100 ft.

)

1 - Receivers (6)

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 53 54

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