Draft
49
Reference
Mobilarm Ltd. © 2009
has fallen
overboard?
Every time we sail
past a particular
spot a man
overboard alarm
is activated, what
could be causing
this?
If the system is operational and becomes swamped by radio
frequency signals, it may lose contact with active Tags and go into
a man overboard state. This could be caused by very high-energy
RF transmissions, or a device in the vicinity transmitting on the
same channel as the Crewsafe system.To get around this, you
could turn the system off and then on again in the vicinity of the
interfering transmissions. The Display Console will automatically
attempt to connect the system to an interference-free channel on
system power up. There is an excellent chance it will connect to a
channel that is unaffected by the RF signals that previously caused
problems.
ROUTERS
PROBLEM
SOLUTION
My router's
NETWORK
STATUS LED
Flashes Red when
it is Switched On
If your router flashes red when it is switched on then it has not
been configured with a compatible Network ID for the system.
Network IDs are usually factory or dealer configured for each
network. Check the Network ID (PAN ID) displayed on any internal
or external router against the one displayed on the Display Console
to ensure they match. If it doesn't match you will need to
reprogram your router.
My router's
NETWORK
STATUS LED
continues with
long blue flashes
after power up
Configured routers display long blue flashes initially on power up
while all network routers join the network. The NETWORK
STATUS LED is solid blue once a router joins the network. If your
router continues to display long blue flashes then it is probably
programmed with an incorrect Network ID and won't join the
network until it is reconfigured.
My router's
NETWORK
STATUS LED
flashes purple on
power up and
then isn't
illuminated
If a router has been used previously and was correctly powered
down before being removed from its previous network, the
NETWORK STATUS LED will flash purple on power up and then
go into standby mode where no LEDs are illuminated. The router
needs to be reconfigured with a correct Network ID.
After the network
is powered up,
the NETWORK
STATUS LED on
one of the routers
is orange
If any of the routers on the network fail a self test when power is
applied to them an orange fault LED is displayed. The faulty router
should be returned to your Mobilarm dealer for evaluation.
When I power up
the Display
Console the
NETWORK
STATUS LED
flashes blue and
There could be RF interference in the vicinity. If the network
experiences radio frequency interference on power up, the Display
Console automatically searches for a new channel that is free of
interference. Normally, the Display Console connects to a "quiet"
channel unless it is completely "swamped" by RF in the vicinity. If it
is unable to find an interference-free channel, the Display Console