38
en | System wiring
Security Escort
2017.08 | V2.18.1.0 | DOC
Training Manual
Robert Bosch (SEA) Pte Ltd
Power
12VDC, 25 mA typical, 55mA with horn sounding
RF Input Frequency
304.000 Mhz
Signal Strength
Measured in 255 steps
Antenna Type
Diversity antennas
Compatibility
SE2x-304 Series and SE4x-304 Series Transmitters; EA500B
Transponder with a ROM version 4.00 or greater.
Notice!
The EA102A-304 is compatible only with other “-304” equipment (e.g., the SE2x-304 and the
SE4x-304). Also, do NOT install this unit in conjunction with an EA500B transponder with a
ROM version earlier than 4.00.
4.4.2
Mounting
Choose a mounting location based upon the previous site survey. The receiver should be
mounted as close as possible to the location found with the test receiver. The following is a
guideline for receiver mounting and spacing:
Indoor receiver installation
Receiver spacing:
Receiver spacing should be no more than 24 m (80 ft) between receivers
for standard construction. Range will be dependent upon the construction of the building. For
example: a building with hollow drywall walls may support 24 m (80 ft) spacing; a building
with steel reinforced concrete may require reduced spacing. It is very important to maintain a
consistent spacing as this will ensure optimum signal locating. The more receivers that can
detect a transmitted signal, the more accurate the locating will be.
Mounting height:
Receivers should be mounted 1.5 to 1.8 m (5 to 6 ft) from the floor.
Maintain a consistent mounting height to ensure optimum signal locating. Do not place
receivers close to the ceiling; this will cause them to be closer to the floor above, and
therefore, reduce the floor to floor location accuracy. It may also be helpful to place the
receivers somewhat higher only on the top floor to be covered and somewhat lower only on
the bottom floor to be covered.
Multi-floor installations:
Receivers
must
be mounted over one another in multi-floor
installations. This helps maintain proper floor-to-floor reception.
Select a mounting location that:
–
provides a clear line-of-sight of the protected area, if possible,
–
is at least 30 m (1 ft) away from metal objects such as HVAC ducts,
–
is on an inside wall, if possible,
–
is 1.5 to 1.8 m (5 to 6 ft) from the floor,
–
is not at a barrier where it is important to resolve which side an alarm location is on, and
–
will not be damaged by tampering or opening doors.