AFDAU-T1 Aerial Firefighting
Data Acquisition Unit
Installation Manual
AMS-IM-1-01 Rev. 7
22 September 2021
16
MSI Load Cell w/ MSI-1 Indicator
Pinouts
AFDAU-T1
J1
MSI-1
P1
Description
30*
10
TXD1
12*
9
RXD1
21*
7
SIGGND(PORT1)
* RS232 Ports 1-4 may be used of the AFDAU-T1. Port 4 is shown above.
Reabe Probe w/ Reabe Indicator
Pinouts
AFDAU-T1
J1
Reabe Ind.
Remote/
Remote Output
Description
30*
1
COM OUT
12*
2
COM IN
21*
4
GND
* RS232 Ports 1-4 may be used of the AFDAU-T1. Port 4 is shown above.
Helitak Tank PLC
Pinouts
AFDAU-T1
J1
Helitak PLC
9-Pin D-Sub
Description
30*
3
TXD
12*
2
RXD
21*
5
GND
* RS232 Ports 1-4 may be used of the AFDAU-T1. Port 4 is shown above.
NOTE
The AFDAU-
T1 is connected to the “Remote Output” connector on the Reabe remote
indicator. If no remote indicator is installed, the AFDAU-T1 can be connected directly to
the “Remote” connector on the Reabe main indicator.
NOTE
Some Reabe Probe installations will result in about 50-200 litres of ungaugeable volume at
the bottom of the hopper on fixed wing aircraft. Should this be the case a volume offset
can be programmed into the AFDAU-T1 to account for this ungaugable quantity. Refer
Section 5.4.
