*
Display units
*
EFIS control Panels
*
Window heat control units
*
Radio altimeter transcievers
*
Weather radar receiver/transceivers
*
TCAS computers
*
ILS receivers
*
VOR/MB receivers
*
ADF receivers
*
DME interrogators
*
Global position system sensor units
*
Cabin telecommunications unit
*
Standby airspeed indication
*
Standby altimeter
*
Ground proximity warning computer
*
Air traffic control mode S transponders.
Some of these LRUs have more than one ARINC 429 bus that go to the AIMS cabinet. Each bus sends different types of data.
Training Information Point
For details on the exact interfaces between the LRUs and the IOMs, refer to the wiring diagram manual.
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AIMS -ARINC 429 INPUTS INTERFACES
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AIMS -ARINC 429 OUTPUTS INTERFACES
General
The left and right AIMS cabinets transmit low speed and high speed ARINC 429 outputs in these three ways:
*
There is a direct output
*
There are two IOM sources in the same AIMS cabinet. A relay controls the output from one source.
*
There is one IOM source in each AIMS cabinet. A relay controls the output from one source.
The different AIMS functions control the relays. For example, the FMCF controls the center nav tuning bus.
ARINC 429 outputs
There are eighteen 429 output buses. Each 429 bus transmits different types of data. These are the ARINC 429 output buses:
*
Left general purpose bus #1
*
Right general purpose bus #1
*
Left general purpose bus #2
*
Right general purpose bus #2
*
Left general purpose bus #3
*
Right general purpose bus #3
*
Left DCMF data bus
*
Right DCMF data bus
*
Left inertial reference bus
*
Right inertial reference bus
*
Center nav tuning bus
*
Left nav tuning bus
*
Right nav tuning bus
*
Center CMCF bus
*
Left CMCF bus
*
Right CMCF bus
*
Left data load bus
*
Right data load bus.
Training Information Point
For details on the exact interfaces between the IOMs and the LRUs, refer to the wiring diagram manual.
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AIMS -ARINC 429 OUTPUTS INTERFACES
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AIMS -ARINC 717 BUS INTERFACES
General
The CPM/Comm in the left and right AIMS cabinets supplies an ARINC 717 bus interface to the flight data recorder (FDR).
The CPM/Comm in the left AIMS cabinet supplies an ARINC 717 bus interface to the quick access recorder (QAR).
FDR ARINC 717 Buses
The CPM/Comm sends data to the flight data recorder (FDR) on an ARINC 717 bus. Each of the AIMS cabinets has an ARINC 717 transmitter and an ARINC 717 output bus for the FDR. The ARINC 717 transmitter receives data from the DFDAF and sends the data to the FDR.
The FDR ARINC 717 output from the right AIMS cabinet goes to a relay in the left AIMS cabinet. The relay sends the output from the left AIMS cabinet ARINC 717 transmitter or the right AIMS cabinet ARINC 717 transmitter to the FDR. The DFDAF in the left AIMS cabinet controls the state of the source select relay.
QAR ARINC 717 Buses
Two ARINC 717 buses connect the CPM/Comm with the QAR. The left AIMS cabinet has two ARINC 717 transmitters which transmit data to the QAR. The data is from the ACMF in the CPM/ACMF.
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AIMS -ARINC 717 BUS INTERFACES
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AIMS -RS422 BUS INTERFACES
QAR RS422 Buses
The CPM/Comm in the left AIMS cabinet has a RS422 receiver and transmitter to connect to the QAR. A control RS422 bus and a data/status RS422 bus supply a two way communication between the CPM/Comm and the QAR. The CPM/Comm has the quick access recorder function (QARF) which controls the RS422 buses.
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