User's Manual

MantaDigital Ra dar Processor Unit (MDP-A1 or MDP-A9)
67 The Radar Processor Unit processes the incoming signals from Radar Sensors and
formats the data for presentation as a radar image.
68 The Processor Unit is provided with 8 serial inputs/outputs (optionally expandable to
16). All these inputs/outputs have been designed to accept NMEA, RS232 or RS422
signals.
69 Provision is made for an analogue Log input and an analogue Gyro input to be connected
directly to the processor unit. Analogue or digital serial log and gyro may be used.
70 The radar input consists of radar real time video, sync pulses, azimuth and heading line
pulses. These are processed in the Radar Processor Unit to provide radar image on the
Visual Display Unit.
71 The Processor Unit operates from the ship’s 110 V/220 V 50/60 Hz AC mains.
72 Optionally, a UPS can be provided to maintain the supplies to both the processor and
visual display unit in the event of a mains failure. If a UPS is not provided with the
system, the Processor Unit must be powered from a UPS feed.
Radar Interswitch Unit (RIU) (MDP-A12)
73 The Radar Interswitch Unit (RIU) (MDP-A12) provides interfacing between up to 6
radar sensors (transceiver, turning mechanism and antenna) and up to 6 Radar Displays.
Any of the Radar Displays can control or show signals from any of the radar sensors, but a radar
sensor may only be controlled by one Radar Display at a time.
74 The RIU is powered by the ship’s 110 V/220 V 50/60 Hz AC mains.
75 As a default condition, in the event of the RIU failing, the RIU should be powered off, and
then each radar sensor will be automatically allocated to one of the radar displays. This
allows limited operation of the system in the event of the RIU failing.
Trans mit ter In ter face Unit (TIU) (NNR-A66-ABAB)
76 The Transmitter Interface Unit (TIU) (NNR-A66-ABAB) provides the interface
between the Kelvin Hughes Mk4 and Mk5 radar sensors and the MantaDigital Processor
Unit.
77 The TIU converts the CAN bus control data from the Processor Unit to parallel control
signals for the Mk4 and Mk5. It also provides all the DC supplies required by the radar
sensor.
78 The TIU is powered by the ship's 110 V/220 V 50/60 Hz AC mains.
Page 1.26 Issue 5 (Jan 09)
KH2060-1