Specifications

The operational description chapter assumes that the MX535B AIS Transponder and the MX51x display are

fully installed using the instructions found in the Installation chapter.

5.1 Powering the MX535B system

The MX535B turns on as soon as the external 12-24 VDC supply is connected to its terminals. It is

recommended that the external power to the unit be wired to a fuse or a circuit breaker for safety and

convenience. It will take about 1 minute warm-up time before the VHF transmission starts.

The power switch of the MX51x display unit does not control the power to the Transponder. Even if you

turn OFF the MX51x display, the AIS transponder will still be active. Note that the ship list will need some

time to recover when turning the Display unit on again. This is dependent on when the messages from the

different vessels are received. The message logs for sent and received messages will also be lost.

Note that the Transponder unit will issue an alarm when the display is shut down, and there may be no

means to acknowledge this alarm if the display is turned off!

5.1.1 Powering the MX51x display

To turn on the MX51x display, press the power key momentarily. To turn off, press the power key,

then highlight the YES softkey and press the ENT key or you can press and hold down the power key

for 5 seconds.

5.2 AIS General Setup

5.2.1 AIS System Setup

Prior to using the MX535B AIS system, it is necessary to configure the AIS menus under the CFG key of

the MX51x CDU, namely:

• AIS Config

• AIS Static

• AIS Voyage

To access the AIS configuration setups, follow the procedure below.

AIS Config Setup

The MX51x/AIS display was designed to work with several types of class “A” AIS transponder systems.

The “Transponder type:…MX535B” setup allows the operator to customize the MX51x/AIS display to

work with SAAB (R3), ATLAS, NAUTICAST or MX535B transponder models (other selections may

become available in the future).

The “Static Config Update:” setup is used to determine where the AIS configuration can be controlled

from. Two possible selections are the MKD (MX510 or MX512 CDU) or ECDIS. The MKD is the default

setting.

5 Operational description