SAILOR 600 Viasat Ka system
98-166784-A
Chapter 2: Introduction
2-7
2222
Introd
ucti
on
2.1.3
Antenna Control Unit (ACU)
The ACU is the central control unit in the system. It manages all communication between
the ADU and the PIU. The ACU has a display, status LEDs and a keypad. It provides a DHCP
client. During configuration you can configure heading offset and save satellite setups. The
user PC (user WAN) for Internet access etc. is connected to the PIU LAN2. The ACU
provides DC power to the ADU through the PIU via a single coaxial cable. The ACU and PIU
each come in a 1RU 19” rack form factor.
You can do remote diagnostics and service with the ACU. Its built-in test equipment
constantly checks the device for proper functioning. It performs POST (Power On Self Test)
and you can request a PAST (Person Activated Self Test). Continuous Monitoring (CM) is
also available. BITE error codes can be read out in the web interface and in the display of
the ACU. You can access the ACU web interface by navigating to the
Antenna page
in the
main web interface.
ACU interfaces
The ACU (SAILOR 7016C) has one LAN connector at the front (disabled) and the following
interfaces at the rear panel:
• N-connector for PIU cable (50 Ohm)
• 2 x F connectors (Tx In, Rx Out) (not used)
• Multi connector for NMEA interfaces (for input from GPS compass or Gyro compass)
• RS-422 interface (not used)
• RS-232 interface (not used)
• LAN 1 port for communication with the PIU
• LAN 2, 3 and 4 (not used)
• Ground wing nut
• AC power connector
• On/Off power switch for the ACU (at the front)
Figure 2-7: Antenna Control Unit
Figure 2-8: ACU (connector panel)
Tx In
(not used)
Rx Out
(not used)
Ground
LAN 1: Connect to PIU
LAN 2, 3 + 4: Disabled
RS-422
(not used)
NMEA
GPS/heading input
AC Power
RS-232
(not used)
Antenna and
power to PIU
ACU
Fuse 7AT/SB
Type label
Not used