AL205R/AL205B suitable for use with a small (5 W or 10 W) solar panel. The AL205R/AL205B can
monitor the input voltage level and include it in its regular status reports.
1.3 Status LEDs
The following table describes the LED functions.
Table 1-2: Status LEDs
LED label
Description
Tx Radio On Lights up to indicate power is being supplied to the TX radio.
Transmit
Lights up while the AL205R/AL205B is transmitting
Clock Sync
A solid light indicates that the AL205R/AL205B has a reliable clock source, and will
transmit in TDMA mode. The clock can maintain synchronization for up to 4 hours
without the GPS being on. A slow flashing light indicates that the AL205R/AL205B
is configured to use network time protocol (NTP) as its clock source and it has
obtained an appropriate time from the NTP server. The AL205R/AL205B will not
transmit using TDMA with an NTP time source.
GPS On
Lights up to indicate the GPS is currently powered up. The GPS may require several
minutes to initially get a fix, but after that will only require turning on for a brief
time to maintain accurate time.
Serial 1
Flashes to indicate input or output serial data is on serial port 1.
Serial 2
Flashes to indicate input or output serial data is on serial port 2.
Serial 3
Flashes to indicate input or output serial data is on serial port 3.
Bit Sync
Lights up to indicate a valid ALERT2 Bit Sync pattern has been found in the data
stream from the RX radio. The light will remain lit until the message is fully
received or until it has been determined that no message was present.
Frame Sync
Lights up to indicate a valid ALERT2 frame sync has been found. It remains lit while
the AL205R/AL205B decodes the message.
Power
Lights up while the device is connected to power.
AL205R / AL205B ALERT2 Repeater / Base
3
