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Verify the Connection Status reads as Connected.
To measure the received signal strength:
Navigate to Status > Statistics.
The current state of the cellular modem, including the Received Signal Strength Indicator (RSSI), will present. Note the RSSI
coverage value.
TABLE 6-6. CURRENT STATE OF CELLULAR MODEM
RECEIVED SIGNAL STRENGH INDICATOR (RSSI) VALUE
DESCRIPTION
≤ -100 dBm)
unacceptable
-99 to -90 dBm
weak-to-medium
-89 to -70 dBm
medium-to-strong
≥ -69 dBm
very strong
RSSI is a measure of the Radio Frequency (RF) power present in a received radio signal. It is generally expressed in decibel-
milliwatts (dBm). The best throughput comes from placing the receiving device in a location with the highest possible RSSI.
FIGURE 6-13. RSSI
With the cellular modem connection on, the connection status is also visible via the LEDs on top of console server.
NOTE: The LES1204A-G/LR(-I), ACM5504-5-G(-W)-I and ACM5504-5-LA/R/V-I each have two cellular status LEDs. The WWAN
LED is OFF when in reset mode or not powered. When powered, it will go ON and while searching for service it will flash off
briefly every five seconds.
CHAPTER 6: FIREWALL, FAILOVER AND OOB ACCESS
