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Software Manual 20

Cellular Configuration

RAM 9000 units: Observe the RSSI LED as shown below.

2.1.5.3 Minimal Reception

On occasion, you can find yourself in a situation where you have just enough signal to be able to communicate with the

cellular tower and obtain an IP address, but not enough reception to be able to sustain a viable connection.

If your cellular card is using dynamically assigned IP addresses, you can determine if you are in a situation like this by

watching the “Cellular Interface” field from the Home screen (Summary -> Status) as shown below:

Signal

OFF No signal available or signal strength is below -100 dBm

ON Excellent signal strength = greater than -69 dBm

FLASH

Fast: Every 300ms = -79 to -70 dBm

Medium: Every 600ms = -89 to -80 dBm

Slow: Every 1200ms = -99 to -90 dBm

RSSI

Low Signal / No service

- 109 dBm (Low but valid signal)

- 99 dBm (Lower but valid signal)

- 89 dBm (Avg signal)

- 80 dBm (Excellent signal)

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RAM 6000 Technical Information Seite 20