4 ACCESSORIES
Inmarsat B
PAGE 4-2
9936
Component location Veritas connection box
The distress key activates a timer circuit which generates a 9 Hz square wave voltage until the key is
released. The square wave voltage is modified in the level converter to interface to the open collector
circuit in the alarm connector.
An indicator circuit consisting of light and a 3 kHz tone is activated from the alarm connector during a
distress alert.
A voltage regulator generates the needed 12V DC to the timer and indicators.
4.3
H4394/95 VERITAS CONNECTION BOX
A Veritas connection box is the interface between the SUB-D connectors at the transceiver unit rear panel
and the ship installations. A diagram and component placements are shown below. All SUB-D connectors
at the transceiver unit are connected to their respective SUB-D connectors inside the Veritas connection
box. In the box, connections between SUB-D and the wire terminal blocks to the ships installation cables
are made.
Two relays inside the Veritas connection box can be used to activate externally mounted indicators on
the ship like alarms, horns, lamps etc. The relays, if used, can be connected to the alarm connector and
indicate service announcements or distress transmitted. The functions of the relays are set up during
installation.
A gyro repeater is also included and can be used if the NMEA signal from the ship gyro compass
is not available.
Содержание Inmarsat B
Страница 1: ...SAILOR Inmarsat B Workshop Manual W4400GB0 ...
Страница 2: ...Inmarsat B Workshop Manual 9905 ...
Страница 7: ...CONTENTS 1 INTRODUCTION 1 1 1 1 SYSTEM COMPONENTS 1 2 1 2 TECHNICAL DATA 1 2 9849 Inmarsat B ...
Страница 46: ...4 ACCESSORIES Inmarsat B PAGE 4 3 Inmarsat B 9849 Diagram Veritas connection box ...
Страница 124: ...CONTENTS 8 PERFORMANCE CHECK AFTER REPAIR 8 1 8 1 START UP SEQUENCE 8 1 9936 Inmarsat B ...
Страница 127: ...CONTENTS 9 SERVICE 9 1 9 1 CHECK OF OCXO 9 1 9936 Inmarsat B ...
Страница 129: ...CONTENTS 10 PARTS LISTS 10 1 9901 Inmarsat B ...
Страница 133: ...CONTENTS 11 ABBREVIATIONS 11 1 Inmarsat B 9849 ...