Site survey
A cellular site survey is not necessary if your anticipated installation location is known to have strong
cellular signal strength. If you are unsure of available cellular signal strength or are choosing between
several installation locations, follow the below instructions to perform a site survey to determine your
best possible installation location. After the optimal location has been determined, set up the Digi
EX15 with either the power supply unit or the PoE injector cable.
1. During a site survey it is useful to use the included battery pack instead of the power supply
unit to power the Digi EX15. The battery pack will power your device for approximately two
hours while you perform your site survey. The battery pack is not rechargeable and should be
properly disposed of after use.
2. Move the Digi EX15 to different locations within your site to determine the best compromise
between signal strength and installation constraints. Since cellular signal strength may
fluctuate, it is important to wait at each location for 1 minute while observing the signal
strength indicator on the front of the device. Minimum cellular signal strength for proper
operation is 2 bars.
3. After the optimal location has been determined, remove the battery pack and connect either
the main power supply unit or PoE injector cable (see Physical installation).
Note After the optimal location has been determined, set up the Digi EX15 with either the power
supply unit or the PoE injector cable.
Site survey troubleshooting
If you are unable to verify a location with a strong cellular signal:
n Verify your SIM has been activated with your cellular operator.
n If you do not get a cellular signal when the Digi EX15 is located indoors, then take the device
outdoors to verify that your cellular network operator has coverage in your location.
n If the outdoor cellular signal strength is less than 2 bars, it may be necessary to connect using
a different cellular network operator. This requires an activated SIM from the alternate cellular
network operator.
n Try the device/antennas in different orientations and away from other nearby electronic
equipment at each test location.
Note LTE requires the use of both antennas & antennas will usually give better performance
when vertical.
n Refer to Device status LEDs to use the Digi EX15 indicator lights to aid in diagnosis.
Digi EX15 User Guide
17
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