Dali Matrix PS System Installation and Commissioning Guide
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Dali Wireless Proprietary and Confidential | DW-MAN-036 Rev 06
If the antenna will be positioned closer to end users than 32 cm, then the installer must calculate
the safe distance for a given installation using the formulas provided.
800 MHz Band, Mode A (2 W)
In the Frequency Range of 300 to 1500 MHz, the maximum power density limit for the
occupational/controlled exposures is f/300 mW/cm
2
for an average time of 6 minutes.
In the Frequency Range of 300 to 1500 MHz, the maximum power density limit for the general
population/uncontrolled exposures is f/1500 mW/cm
2
for an average time of 30 minutes.
The antenna connected to the product is specific to the deployment. The worst case scenario
occurs when using a very high gain outdoor/indoor antenna. However a typical indoor antenna is
shown in the following example:
The highest expected output power is 33.6 dBm at 856MHz. For an output level of 33.6 dBm with
an indoor antenna gain of 3 dBi, the EIRP is 36.6 dBm.
The maximum power density safe exposure level for general population/uncontrolled exposure of
30 minutes for the frequency of 856 MHz is 0.571 mW/cm
2
.
Conducted Output
Power (dBm)
Max Antenna
Gain (dBi)
Max EIRP
(mW)
Power Density Limit
Allowed (mW/cm²)
Safe Distance
(cm)
33.6
3
4571
0. 571
26
As shown above, the minimum s a f e distance where the MPE limit is reached is 26 cm from
the unit with a 3 dBi antenna and no distribution loss.
If the antenna will be positioned closer to end users than 26 cm, then the installer must calculate
the safe distance for a given installation using the formulas provided.
900 MHz Band, Mode A (2 W)
In the Frequency Range of 300 to 1500
MHz, the maximum power density limit for the
occupational/controlled exposures is f/300 mW/cm
2
for an average time of 6 minutes.
In the Frequency Range of 300 to 1500 MHz, the maximum power density limit for the general
population/uncontrolled exposures is f/1500 mW/cm
2
for an average time of 30 minutes.
The antenna connected to the product is specific to the deployment. The worst case scenario
occurs when using a very high gain indoor/outdoor antenna. However a typical indoor antenna is
shown in the following example: