Bosch Security Escort SE2000 Series Training Manual page 28

28 en | Equipment estimation, location accuracy and receiver location
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Boundary areas at the outer edge of the protected area
The system cannot locate an alarm past the last receiver at the boundary of the protected
area. Therefore, the last row of receivers must be at or past the end of the protected area.
2017.08 | V2.18.1.0 | DOC
Indoor receivers should be no more than 25 m (80 ft) apart and outdoor receivers should
be no more that 90 m (300 ft) apart. Both of these recommendations work well in their
respective areas. However, if a building is adjacent to an outdoor area, that building will
have a greater density of receivers and, therefore, has a tendency to pull the computed
location towards it. To counteract the building tendency to pull the location, consider the
following special cases:
– If the outdoor area adjacent to the building is wide open and the customer is not
concerned about reduced location accuracy in this area, then nothing special needs
to be done. Follow the normal indoor and outdoor recommendations.
– The building is near the boundary of the protected area, with or without a fence at
the boundary. The receivers in the building should be placed at the recommended 25
m (80 ft) spacing. The receivers at the boundary of the protected area near the
building should be spaced about the same as those in the building, approximating
the same grid as used in the building.
– The building is adjacent to a large protected outdoor area that extends for more than
90 m (300 ft) from the building. The receivers in the building should be placed at the
recommended 25 m (80 ft) spacing. The receivers in the large protected outdoor
area should be placed on the normal 90 m (300 ft) grid except for the first row of
receivers adjacent to the building. This first row of outdoor receivers in the transition
area should "split the difference" between the indoor and outdoor spacing at about
60 m (200 ft).
Training Manual
Security Escort
Robert Bosch (SEA) Pte Ltd