Sierra Wireless MP 875 - Manual (Page 38)

MP 875 Modem User Guide
38 2130808
Reading the status indicators
The MP modem’s indicator panel includes four indicator lights
Figure 3-1: The indicator panel of the MP 875 modem.
The following table shows the behavior of the LEDs during
normal MP modem operation:
Power indicator GPS indicator
Transmit (Tx)
indicator Receive (Rx)
indicator
Table 3-1: LED operation
LED Behavior Indicates
Power Off MP modem is not powered.
Rapid flashing MP modem is powered and has not acquired
network service.
Slow flashing (about 1.5 seconds
between flashes) MP modem has acquired network service.
On solid MP modem has established a network
connection.
Tx Flashing MP modem is transmitting data.
Rx Flashing MP modem is receiving data.
GPS Off GPS module is not active.
Flashing GPS module is active but not receiving valid
fixes.
Solid GPS module is active and providing valid fixes.