ACU provides an analog interface to third party beacon receivers.
pin
signal
description
type
1
Beacon Level
beacon level signal 0..10V
IN
2
GND
3
PRESET 1 C
beacon receiver preset activation
OUT+
4
PRESET 1 E
OUT-
5
PRESET 2 C
beacon receiver preset activation
OUT+
6
PRESET 2 E
OUT-
7
PRESET 3 C
beacon receiver preset activation
OUT+
8
PRESET 3 E
OUT-
9
PRESET 4 C
beacon receiver preset activation
OUT+
10
PRESET 4 E
OUT-
CON7 Inclinometer
The ACU provides two ADC inputs to read the angle information from ratiometric inclinometers like
the Schaevitz AccuStar. The standard ACU software reads this information and displays it at the
'Test' page of the software, but it does not include the nick/roll angles into the displayed antenna
pointing.
pin
signal
description
type
1
+9V
roll reference output (9VDC)
OUT
2
VRAT X
roll measurement input
IN
3
GND
roll ground
4
+9V
nick reference output (9VDC)
OUT
5
VRAT Y
nick measurement input
IN
6
GND
nick ground
CON8 Serial Interfaces
The ACU owns two serial interfaces. The first is reserved to poll a GPS receiver in order to get the
antenna geodetic location automatically. Any NMEA standard GPS receiver providing a RS232
interface may be connected here.
The second interface is used to control the ACU from remote where the TCP/IP remote control is
not usable. This interface may be configured to work as a RS232 or RS422 interface by jumpers
inside the ACU.
pin
signal
description
type
1
RS232 0 TX
RS232 for GPS receiver
OUT
(C) 2022, SatService GmbH
www.satnms.com
ACU-ODM-UM-2209 Page 11/73
