User manual
28
Charging the Iridium 9555 Handset
The SatDOCK 9555 provides charging power to the 9555 handset
via its base connector. Therefore, DO NOT plug another power
supply into the 9555 side power port whilst it is docked in the cradle.
The 9555 battery is a lithium-ion cell which has a safety
temperature range whilst charging. This range is from 0 to 40
degrees Celsius (32 to 104 degrees Fahrenheit).
Due to the increased heating effects on the 9555 handset
whilst it is docked and being charged, it is ideal for the ambient
temperature to be approximately 10 degrees below the 40
degreeC upper limit for the handset to charge the battery whilst
docked. If the battery temperature exceeds this limit, then the
9555 may cease charging until the temperature is reduced. In
some cases, the charging process may oscillate ON and OFF
at the temperature limit. This could damage the Li-ion battery.
To avoid the charging oscillation, the SatDOCK 9555 employs
a pulse powering mechanism to charge the 9555. Basically,
charging power will be provided to the 9555 for a pre-dened
duration (default 40 minutes) and then removed for another
pre-dened duration (default 20 minutes). By turning off the
charging for some time, it allows the 9555 battery to cool
down and during the OFF period, if the temperature drops
below a pre-dened level (default 28 degreeC), the SatDOCK
9555 will immediately turn on the charging power before the
OFF timer expires. The charging ON, OFF and temperature
level are congurable via the SDMS.
NOTE:
If the 9555 handset fails to connect with the cradle, the
cradle will power cycle the 9555 twice when it is docked
and after that, it will power down the 9555 and put it into a
one-minute charge mode with the Ring/Mute LED ashing
RED and GREEN.
After the one minute, the cradle will try again to connect
with the 9555. If it still fails, the cradle will follow the
above sequence however for a 10-minute duration.
One common cause for connection failure is a at 9555
battery which prevents the 9555 from being turned on in
the cradle. The one-minute and ten-minute charge cycle
will ‘resurrect’ the battery and once the 9555 is connected
with the cradle, charging will resume on the 9555.
If the 9555 handset is removed from the cradle during
the charging process, then reinserted, the startup
process will restart from the beginning.
Please be patient during this startup sequence. Ringer
/ Mute LED will ash RED and GREEN during above
charging process.