User's Manual Part 1

30 Mercury Reference Manual 05-4446A01, Rev. D
If the radio network seems to be operating properly based on observa-
tion of the unit’s LEDs, use the PING command to verify the link integ-
rity with the Access Point.
* The LAN connector has two integrated LEDs to indicate signal activity
as follows: A steady green LED indicates that a link has been achieved;
a flashing green LED indicates data activity, and a yellow LED indicates
100 Mbps operation.
Table 2-2. Transceiver LED Functions
LED Label Activity Indication
PWR ON Primary power (DC) present
Blinking Unit in “Alarmed” state
OFF Primary power (DC) absent
LAN* ON LAN detected
Blinking Data TX/RX
OFF LAN not detected, or excessive
traffic present
COM1
(MGT System)
Blinking Data TX/RX
OFF No data activity
GPS ON Internal GPS receiver is
synchronized with the satellite
network.
Blinking AP modem is synchronizing
with the GPS timing.
OFF Internal GPS receiver is not
synchronized with the satellite
network.
LINK
(Access Point)
ON Unit is operational
OFF Not transmitting. Usually
occurs while waiting for GPS
sync.
LINK
(Remote)
ON Associated to AP
OFF Not associated with AP
USB ON USB activity on either port
OFF No USB activity