User guide

| Wireless M2M
3
NTC-40 Series - M2M WiFi Router
Overview of LEDs
LED Display Description
Power (red) Solid ON The red Power LED indicates correct power is applied to
the DC power input jack.
Tx/R x
(amber)
Solid ON The amber LED will light upon data being sent to or
received from the cellular network.
DCD (green) Solid ON The green Carrier Detect LED illuminates to indicate a
Data connection.
Service
Type (green)
The green LED will illuminate when cellular network coverage is detected.
Solid ON 3G: indicates UMTS/HSPA available coverage
Blinking EDGE: indicates EDGE available coverage
Off 2G: indicates GSM/GPRS available coverage only.
RSSI (green) This green LED indicates the Received Signal Strength.
There are three possible states that the RSSI LED can operate in, based
upon signal level.
Solid ON HIGH - Indicates the RSSI level is -77dBm (high), or greater
Flashing MEDIUM - Indicates the RSSI level is between -91dBm and
-78dBm, (medium)
Off LOW - Indicates the RSSI level is less than -92dBm (low)