Installation of the dual-antenna mode
98-148248-C Appendix B: Antenna Diversity Solution (ADS) B-3
BBBB
System overview
The switching from one antenna to the other is handled by the Master ACU based on
several criteria, like predefined blocking zones, unexpected blocking or antenna state. In
case the active antenna enters a blocking zone or is blocked by f.ex. a crane, the Master
ACU commands the idle antenna of the dual antenna system to take over and the system
continues to provide network access. A connection diagram is shown in the following
figure.
Installation
To install the dual antennas, do as follows:
1. Install the Master ADU, ACU, the RX combiner and the modem as shown in Figure B-
2: ADS connection diagram.
2. Install the Slave ADU, ACU, the TX splitter as shown in Figure B-2: ADS connection
diagram.
3. Provide the vessel heading in the web interface of the Master ACU and Slave ACU, see
NET-H (NMEA 0183 connector, for future use) on page 4-3.
4. Connect the cables as shown in Figure B-2: ADS connection diagram and in the
following table.
Figure B-2: ADS connection diagram
ADU (Slave)
ADU (Master)
Modem
ACU
(Master)
ACU
(Slave)
LAN
RX (L-Band)
TX (L-Band)
BUC M&C (RS-232)
ACU M&C (Ethernet)
Keyline (RS-422)
RX (L-Band)
RX (L-Band)
TX (L-Band)
TX (L-Band)
BUC M&C (RS-232)
ACU M&C (Ethernet)
Keyline (RS-422)
Keyline (RS-422)
TX Splitter
RX combiner
Do not power on the modem; the modem must only be turned on when the
complete system is ready to perform a One Touch Commissioning (OTC).
Cable. Connect cables Purpose
1
Modem LAN Port 1 to Master ACU LAN port 1 Modem M&C connection
2Master ACU LAN 4 to Slave ACU LAN1 Master/slave/Modem
management
Table B-1: ADS, dual mode antenna, cabling
To Next Page
Loading...
Need help?
General