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The Below Deck Unit BDU
WLAN port
The WLAN port on the BDU is a reverse polarity SMA jack. The supplied antenna is a
2.4 GHz 3dBi “rubber duck” antenna with RP-SMA plug connector supplied.
To prevent blocking or attenuation of the WLAN signal, the BDU should be installed
such that there is no metal blocking the radio path to the user’s device.
Antenna port
The ADU (antenna) connects to the 50 Ohm female TNC connector antenna port on the
BDU by an RF cable which carries L-band RF; signaling, & DC power (42Vdc) for the
antenna.
The antenna cable carries DC power; do not connect or disconnect the antenna cable
while the unit is powered on.
ONLY use the Thuraya Land Mobile Antenna Type HN221 with this BDU – use of other
antennas may damage the BDU and Antenna and shall void the warranty.
SIM card
SIM Card: The BDU requires a Thuraya SIM to be installed. Insert the SIM (supplied
by your service provider) into the SIM card holder with the metal contacts facing down.
A SIM card cover is supplied as an accessory with the BDU and may be utilized if
desired. Use this to prevent accidental removal of the SIM card or if additional security
is required. Note: the following tool (not supplied) is required to fit the SIM Card
Cover: Screwdriver, Torx 8 (for a metric M2.5 screw). See Figure 1-3 for attaching the
SIM card cover.
