DOC AIRBUS | AMM A320FUP AND DOWN DATA LOADING SYSTEM ACQUISITION/INTERFACE AND EQUIPMENT - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
1. General
The up and down data loading system is defined as an interface between the onboard computers and the ground-base data processing stations.
It has the functions below:
The up and down data loading system is defined as an interface between the onboard computers and the ground-base data processing stations.
It has the functions below:
A. Uploading Function (only on ground)
From a media (3.5 inch disk, CD-ROM or USB mass storage), the onboard computers use the uploading function to update their data bases or to modify part of their operational software.
From a media (3.5 inch disk, CD-ROM or USB mass storage), the onboard computers use the uploading function to update their data bases or to modify part of their operational software.
B. Downloading Function
This function is used on the ground to download to a media (3.5 inch disk, CD-ROM or USB mass storage), the data recorded by certain computers during aircraft operation.
These data can be analyzed on the ground by the airlines on a suitable data processing tool.
This function is used on the ground to download to a media (3.5 inch disk, CD-ROM or USB mass storage), the data recorded by certain computers during aircraft operation.
These data can be analyzed on the ground by the airlines on a suitable data processing tool.
2. Component Location
The basic definition includes the installation of wiring, a Data Loading Selector (DLS) (101TD), a Data Loading Routing Box (DLRB) (102TD) and a Centralized Data Loading Connector (CDLC) (2TD) enabling the use of a portable data loader.
Two stowage boxes are installed in the cockpit, in the sidewall panels 211FW and 212FW.
The basic definition includes the installation of wiring, a Data Loading Selector (DLS) (101TD), a Data Loading Routing Box (DLRB) (102TD), a Centralized Data Loading Connector (CDLC) (2147VC) enabling the use of a portable data loader and a dedicated OANS (Onboard Airport Navigation System) data loading connector (2148VC).
Two stowage boxes are installed in the cockpit, in the sidewall panels 211FW and 212FW.
** ON A/C NOT FOR ALL The basic definition includes the installation of wiring, a Data Loading Selector (DLS) (101TD), a Data Loading Routing Box (DLRB) (102TD) and a Centralized Data Loading Connector (CDLC) (2TD) enabling the use of a portable data loader.
Two stowage boxes are installed in the cockpit, in the sidewall panels 211FW and 212FW.
The basic definition includes the installation of wiring, a Data Loading Selector (DLS) (101TD), a Data Loading Routing Box (DLRB) (102TD), a Centralized Data Loading Connector (CDLC) (2147VC) enabling the use of a portable data loader and a dedicated OANS (Onboard Airport Navigation System) data loading connector (2148VC).
Two stowage boxes are installed in the cockpit, in the sidewall panels 211FW and 212FW.
| FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS DOOR | ATA REF |
|---|---|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||||
| 101TD | SELECTOR-DATA LOADING | 20VU | 212 | 31-38-21 | |
| 102TD | ROUTING BOX-DATA LOADING | 80VU | 120 | 31-38-34 | |
3. System Description
A. Description
The system includes:
ARINC 615-1 also defines the disk. It must be formatted under MS-DOS 3.3 (Microsoft Disk Operating System version 3.3).
This configuration file is not indispensable for downloading.
Operation mode is described in Para. Operation/Control and Indicating.
The system includes:
The system includes:
- The DLS (Data Loading Selector)
The DLS allows the user to control DLRB activity and operation mode. It permits to scroll into the target list of Line Replaceable Units (LRUs), shown on the DLS display, and to select or unselect the desired LRU to be loaded. - The DLRB (Data Loading Routing Box)
The DLRB routes the input/output data between the disk unit and the target computer. - The CDLC installed in the overhead panel (52VU) of the cockpit for the connection of the portable data loader.
ARINC 615-1 also defines the disk. It must be formatted under MS-DOS 3.3 (Microsoft Disk Operating System version 3.3).
This configuration file is not indispensable for downloading.
Operation mode is described in Para. Operation/Control and Indicating.
The system includes:
- The DLS
It allows the user to control DLRB activity and operation mode. It permits to scroll into the target list of Line Replaceable Units (LRUs), shown on the DLS display, and to select or unselect the desired LRU to be loaded. - The DLRB
It routes the input/output data between the disk unit and the target computer. - The CDLC (2147VC)
It is installed in the center pedestal panel (117VU) of the cockpit for the connection of the portable data loader to the A615 targets (low speed data loading). - The OANS data loading connector (2148VC)
It is installed in the center pedestal panel (117VU) of the cockpit for a direct connection of the portable data loader to the Onboard Airport Navigation Computer (OANC) through A615A (high speed data loading).
B. Architecture - Computer Interface
Each computer using the data loading system is connected to it by two ARINC 429 (input/output) buses and one associated Load Enable discrete.
Each computer (except OANC) is capable of low speed data loading (ARINC 615 norm) and is connected by two ARINC 429 (input/output) buses and one associated Load Enable discrete to the DLRB.
The OANC is capable of high speed data loading (ARINC 615A norm) and is connected by Ethernet buses (input/output) and one Load Enable discrete to the data loading connector 2148VC.
Computers connected:
Each computer using the data loading system is connected to it by two ARINC 429 (input/output) buses and one associated Load Enable discrete.
Each computer (except OANC) is capable of low speed data loading (ARINC 615 norm) and is connected by two ARINC 429 (input/output) buses and one associated Load Enable discrete to the DLRB.
The OANC is capable of high speed data loading (ARINC 615A norm) and is connected by Ethernet buses (input/output) and one Load Enable discrete to the data loading connector 2148VC.
Computers connected:
(1) Flight Management and Guidance Computers 1 and 2 (FMGC) (22-70-00).
Example: periodical update of the NAV data base (waypoints, navaids, runways, airports etc.) that the FMGCs use to elaborate the flight plans.
Example: periodical update of the NAV data base (waypoints, navaids, runways, airports etc.) that the FMGCs use to elaborate the flight plans.
(2) Centralized Fault Display Interface Unit (CFDIU) (31-32-00)
(a) To load the maintenance FILTER DATA BASE (31-38-00).
(b) Other connections:
- an input discrete is wired for test function
- an output discrete is wired for test result.
(3) Air Traffic Services Unit (ATSU) (46-21-00)
To load the A/C interface software, an operational software part and a database including the format of the reports defined by the airline requirements.
To load the A/C interface software, an operational software part and a database including the format of the reports defined by the airline requirements.
(4) Traffic Collision Avoidance System (TCAS) (34-43-00)
To load the operating algorithms and the reconfiguration of the inputs/outputs of the TCAS computer.
To load the operating algorithms and the reconfiguration of the inputs/outputs of the TCAS computer.
NOTE: The wiring is installed on TCAS system provision.
(5) Display Management Computer (DMC) (31-36-00)
To load the operational software of the computer.
To load the operational software of the computer.
(6) Flight Data Interface Management Unit (FDIMU)
- To load the Digital Flight Data Recording System (DFDRS) software of the FDIMU (31-33-00)
- To load the Aircraft Integrated Data System (AIDS) software of the FDIMU (31-36-00).
(7) Elevator and Aileron Computer (ELAC)(27-93-00)
To load the ELAC software of the computer.
To load the ELAC software of the computer.
(8) Onboard Airport Navigation Computer (OANC) (34-38-00)
The OANS data loading is performed directly through a specific and dedicated OANS data loading connector (2148VC).
It allows:
The OANS data loading is performed directly through a specific and dedicated OANS data loading connector (2148VC).
It allows:
- To load the OANS OPERATIONAL PROGRAM software of the OANC
- To load the OANS AIRPORT DATABASE software of the OANC
- To load the OANS OPTION CONFIGURATION software of the OANC.
(9) Bleed-Air Monitoring Computers (BMC) (Ref. AMM D/O 36-00-00-00).
To control the automatic function of the pneumatic system.
To control the automatic function of the pneumatic system.
C. Architecture - Landing Gear Control and Interface Unit (LGCIU)
The LGCIU1 sends flight/ground information by a discrete signal connected to the CDLC.
The LGCIU1 sends flight/ground information by a discrete signal connected to the CDLC.
(1) Ground
The right main gear shock absorber is compressed.
The right main gear shock absorber is compressed.
(2) Flight
The right main gear shock absorber is extended.
The right main gear shock absorber is extended.
D. Architecture - DLRB/DLS interface
The DLS sends the user commands to the DLRB and displays the result of these commands taken into account by the DLRB
The DLS sends the user commands to the DLRB and displays the result of these commands taken into account by the DLRB
(1) RS422 bi-directional line (display control, keys and DLS BITE acquisition).
(2) Power supply (the DLS is powered by the DLRB).
(3) 1 discrete (ON/OFF function).
E. Architecture - CDLC/DLRB
(1) 1 ARINC 429 input/output.
(2) 4 ARINC 603 discrete inputs (track select function) used by certain LRUs.
(3) 'Load enable' discrete (ON/OFF function): discrete signal from the LGCIU1 that is transmitted from the CDLC to the DLRB whenever a PDL is plugged through its cable to the CDLC (Refer to ARINC 615 norm).
F. Architecture - Computer Interface (ARINC 615A)
Each computer which has a high-speed data-loading function and which has this function on, is connected to the connector mounting plate with two ARINC 615A (input/output) buses and one related Load Enable discrete signal.
Computers connected:
Each computer which has a high-speed data-loading function and which has this function on, is connected to the connector mounting plate with two ARINC 615A (input/output) buses and one related Load Enable discrete signal.
Computers connected:
Each computer which has a high-speed data-loading function and which has this function on, is connected to the connector mounting plate with two ARINC 615A (input/output) buses and one related Load Enable discrete signal.
Computers connected:
- ADIRS (Ref. AMM D/O 34-12-00-00)
- ATSU (Ref. AMM D/O 46-21-00-00)
- DMC (Ref. AMM D/O 31-60-00-00)
- FMGC (Ref. AMM D/O 22-83-00-00)
- BMC (Ref. AMM D/O 36-00-00-00).
To load the A/C interface software, an operational software part and a data base including the format of the reports defined by the airline requirements.
Each computer which has a high-speed data-loading function and which has this function on, is connected to the connector mounting plate with two ARINC 615A (input/output) buses and one related Load Enable discrete signal.
Computers connected:
- ADIRS (Ref. AMM D/O 34-12-00-00)
- ATSU (Ref. AMM D/O 46-21-00-00)
- DMC (Ref. AMM D/O 31-60-00-00)
- FMGC (Ref. AMM D/O 22-83-00-00).
4. Power Supply
DLRB and CDLC - Power Supply ** ON A/C NOT FOR ALL
DLRB and CDLC - Power Supply ** ON A/C NOT FOR ALL
The system uses 28VDC.
The system uses 28VDC and 115VAC.
DLRB and CDLC - Power Supply ** ON A/C NOT FOR ALL DLRB and CDLC - Power Supply ** ON A/C NOT FOR ALL The system uses 28VDC.
The system uses 28VDC and 115VAC.
A. 28VDC Power Supply
The data loading routing box permitting connection of loadable computers to the data loader is supplied with 28VDC from 28VDC bus 1 103PP through circuit breaker 5TD.
The data loader is supplied with 28VDC from 28VDC bus 1 103PP through circuit breaker 14TD.
The data loading routing box permitting connection of loadable computers to the data loader is supplied with 28VDC from 28VDC bus 1 103PP through circuit breaker 5TD.
The data loader is supplied with 28VDC from 28VDC bus 1 103PP through circuit breaker 14TD.
B. 115VAC Power Supply
The CDLC also provides power supply for a PDL as per ARINC 615 norm as follows:
The CDLC also provides power supply for a PDL as per ARINC 615 norm as follows:
- 115VAC from 115VAC bus 1 103XP-B through circuit breaker 3TD.
5. Interface
The DLRB is connected to loadable computers via ARINC 429 buses and discretes.
It can also dialog with Portable Test Equipment (PTE) via RS-232 type link.
The DLRB is connected to loadable computers via ARINC 429 buses and discretes.
It can also dialog with Portable Test Equipment (PTE) via RS-232 type link.
A. Input/Output Capacity
(1) Link with target LRU
- 26 ARINC 429 input buses
- 26 ARINC 429 output buses
- 26 Load Enable discretes.
(2) Link with target LRU (downloading function)
- 4 additional Load Enable discretes.
(3) Link with CFDIU
- 1 input discrete test
- 1 output discrete test result.
(4) Link with DLS
- 1 ON/OFF discrete
- RS422 input/output.
(5) Link with CDLC
- 4 discretes (ARINC 603 protocol)
- 1 ARINC 429 input/output.
(6) Link with LGCIU (via CDLC)
- 1 input discrete AIR/GROUND signal.
(7) 4 discretes (RS-232 interface for workshop maintenance).
B. RS422 Interface
The interface between the DLRB and the DLS is made of a RS422 bi-directional serial link.
The interface between the DLRB and the DLS is made of a RS422 bi-directional serial link.
(1) Information exchanged on the serial line
(a) From the DLRB to the DLS
1 During normal operational mode
The content of the text which is displayed on the LCD screen.
The content of the text which is displayed on the LCD screen.
2 During power-up mode of DLS
Information devoted to initialization of the LCD screen.
Information devoted to initialization of the LCD screen.
(b) From the DLS to the DLRB
1 During normal operational mode
NEXT, PREV, SEL CTL key signals and DLS BITE status which are treated by the DLRB.
NEXT, PREV, SEL CTL key signals and DLS BITE status which are treated by the DLRB.
2 During power-up mode
The resulting BITE status of the test which is analyzed by the DLRB.
The resulting BITE status of the test which is analyzed by the DLRB.
C. RS-232 Interface
Part of the connector is reserved for Portable Test Equipment (PTE) use during workshop maintenance operations. BITE results are stored in a Non-Volatile Memory (NVM).
This memory reserved for recording failures is divided into 4 zones. Zone 1 stores internal and external failures detected during the last or current flight leg.
Zone 2 stores internal failures detected on the ground.
These two zones can only be read by the CFDIU.
Zones 3 and 4 provide permanent storage of in-depth data concerning the failures (information on the internal part of the data loader).
These two zones can only be read by the PTE.
Part of the connector is reserved for Portable Test Equipment (PTE) use during workshop maintenance operations. BITE results are stored in a Non-Volatile Memory (NVM).
This memory reserved for recording failures is divided into 4 zones. Zone 1 stores internal and external failures detected during the last or current flight leg.
Zone 2 stores internal failures detected on the ground.
These two zones can only be read by the CFDIU.
Zones 3 and 4 provide permanent storage of in-depth data concerning the failures (information on the internal part of the data loader).
These two zones can only be read by the PTE.
D. -
(1) Marking/identification
Each disk stored on the aircraft is identified by a label with the following indications:
Each disk stored on the aircraft is identified by a label with the following indications:
(a) Functional designation:
Examples: FMGC navigation data base, Aircraft Communication Addressing and Reporting System (ACARS) data base, etc.
Examples: FMGC navigation data base, Aircraft Communication Addressing and Reporting System (ACARS) data base, etc.
(b) Aircraft type:
A/C / MODEL(OPTIONAL) / TAIL(OPTIONAL) / NUMBER(OPTIONAL).
A/C / MODEL(OPTIONAL) / TAIL(OPTIONAL) / NUMBER(OPTIONAL).
(c) Part Number:
Hardware reference of the disk and software reference of the loadable software which is the same as the reference of the loaded computer itself (or database or airline customization reference if any).
Hardware reference of the disk and software reference of the loadable software which is the same as the reference of the loaded computer itself (or database or airline customization reference if any).
(d) Supplier's name:
Name of the supplier of the formatted disk and its contents.
Name of the supplier of the formatted disk and its contents.
(e) Supplier's code
Code of the supplier of the formatted disk and its contents.
Code of the supplier of the formatted disk and its contents.
(f) Media FIN.
E. DLS Interface (Messages)
An LCD backlighted screen composed of two lines of 16 characters of target computers and the state of its link with the disk unit.
An LCD backlighted screen composed of two lines of 16 characters of target computers and the state of its link with the disk unit.
NOTE: The blinking of the display (2 or 3 times) is due to an action or a none authorized key.
(1) Name and state of LRUs (SELECTED/NOT SELECTED)
(a) List of message steps when going through the menu with PREV/NEXT key.
NOTE: This list is an exhaustive one and does not reflect A/C configuration.
- DLRB
NOT SELECTED
NOTE: When this display flashes, two or three times, this shows that the NEXT/PREV action is in progress but the function is inoperative.
- FMGC1
NOT SELECTED - FMGC2
NOT SELECTED - ATSU
NOT SELECTED - CFDIU
NOT SELECTED - ACMS
NOT SELECTED - FDR SYS
NOT SELECTED - TCAS
NOT SELECTED - DMC1
NOT SELECTED - ELA1/COM
NOT SELECTED - ELA1/MON
NOT SELECTED - ELA2/COM
NOT SELECTED - ELA2/MON
NOT SELECTED - FG1
NOT SELECTED - FG2
NOT SELETCED - FAC1
NOT SELECTED - FAC2
NOT SELECTED - SEC1
NOT SELECTED - SEC2
NOT SELECTED - SEC3
NOT SELECTED - SATCOM
NOT SELECTED
(b) List of messages when the loading procedure is in progress
- DLRB
SELECTED - FMGC1
SELECTED - FMGC2
SELECTED - ATSU
SELECTED - CFDIU
SELECTED - ACMS
SELECTED - FDR SYS
SELECTED - TCAS
SELECTED - DMC1
SELECTED - ELA1/COM
SELECTED - ELA1/MON
SELECTED - ELA2/COM
SELECTED - ELA2/MON
SELECTED - FG1
SELECTED - FG2
SELETCED - FAC1
SELECTED - FAC2
SELECTED - SEC1
SELECTED - SEC2
SELECTED - SEC3
SELECTED - SATCOM
SELECTED
(2) Name and state of LRUs (SELECTED/NOT SELECTED)
(a) List of message steps when going through the menu with PREV/NEXT key.
NOTE: This list is an exhaustive one and does not reflect A/C configuration.
- DLRB
NOT SELECTED
NOTE: When this display flashes, two or three times, this shows that the NEXT/PREV action is in progress but the function is inoperative.
- FMGC1
NOT SELECTED - FMGC2
NOT SELECTED - BMC1
NOT SELECTED - ATSU
NOT SELECTED - CFDIU
NOT SELECTED - ACMS
NOT SELECTED - FDR SYS
NOT SELECTED - TCAS
NOT SELECTED - DMC1
NOT SELECTED - ELA1/COM
NOT SELECTED - ELA1/MON
NOT SELECTED - ELA2/COM
NOT SELECTED - ELA2/MON
NOT SELECTED - FG1
NOT SELECTED - FG2
NOT SELETCED - FAC1
NOT SELECTED - FAC2
NOT SELECTED - SEC1
NOT SELECTED - SEC2
NOT SELECTED - SEC3
NOT SELECTED - SATCOM
NOT SELECTED
(b) List of messages when the loading procedure is in progress
- DLRB
SELECTED - FMGC1
SELECTED - FMGC2
SELECTED - BMC1
SELECTED - ATSU
SELECTED - CFDIU
SELECTED - ACMS
SELECTED - FDR SYS
SELECTED - TCAS
SELECTED - DMC1
SELECTED - ELA1/COM
SELECTED - ELA1/MON
SELECTED - ELA2/COM
SELECTED - ELA2/MON
SELECTED - FG1
SELECTED - FG2
SELETCED - FAC1
SELECTED - FAC2
SELECTED - SEC1
SELECTED - SEC2
SELECTED - SEC3
SELECTED - SATCOM
SELECTED
(3) List of fault messages
(a) Selected channel failure after action on the SEL CTL key
- DLRB CHAN FAIL
PUSH SEL CTL - FMGC1 CHAN FAIL
PUSH SEL CTL - FMGC2 CHAN FAIL
PUSH SEL CTL - ATSU CHAN FAIL
PUSH SEL CTL - CFDIU CHAN FAIL
PUSH SEL CTL - ACMS CHAN FAIL
PUSH SEL CTL - FDR SYS CHAN FAIL
PUSH SEL CTL - TCAS CHAN FAIL
PUSH SEL CTL - DMC1 CHAN FAIL
PUSH SEL CTL - ELA1/COM CHAN FAIL
PUSH SEL CTL - ELA1/MON CHAN FAIL
PUSH SEL CTL - ELA2/COM CHAN FAIL
PUSH SEL CTL - ELA2/MON CHAN FAIL
PUSH SEL CTL - FG1 CHAN FAIL
PUSH SEL CTL - FG2 CHAN FAIL
PUSH SEL CTL - FAC1 CHAN FAIL
PUSH SEL CTL - FAC2 CHAN FAIL
PUSH SEL CTL - SEC1 CHAN FAIL
PUSH SEL CTL - SEC2 CHAN FAIL
PUSH SEL CTL - SEC3 CHAN FAIL
PUSH SEL CTL - SATCOM CHAN FAIL
PUSH SEL CTL
(4) List of fault messages
(a) Selected channel failure after action on the SEL CTL key
- DLRB CHAN FAIL
PUSH SEL CTL - FMGC1 CHAN FAIL
PUSH SEL CTL - FMGC2 CHAN FAIL
PUSH SEL CTL - BMC1 CHAN FAIL
PUSH SEL CTL - ATSU CHAN FAIL
PUSH SEL CTL - CFDIU CHAN FAIL
PUSH SEL CTL - ACMS CHAN FAIL
PUSH SEL CTL - FDR SYS CHAN FAIL
PUSH SEL CTL - TCAS CHAN FAIL
PUSH SEL CTL - DMC1 CHAN FAIL
PUSH SEL CTL - ELA1/COM CHAN FAIL
PUSH SEL CTL - ELA1/MON CHAN FAIL
PUSH SEL CTL - ELA2/COM CHAN FAIL
PUSH SEL CTL - ELA2/MON CHAN FAIL
PUSH SEL CTL - FG1 CHAN FAIL
PUSH SEL CTL - FG2 CHAN FAIL
PUSH SEL CTL - FAC1 CHAN FAIL
PUSH SEL CTL - FAC2 CHAN FAIL
PUSH SEL CTL - SEC1 CHAN FAIL
PUSH SEL CTL - SEC2 CHAN FAIL
PUSH SEL CTL - SEC3 CHAN FAIL
PUSH SEL CTL - SATCOM CHAN FAIL
PUSH SEL CTL
F. DLS Interface (Other messages)
(1) Message when DLS is powered, when going through the step menu or at the end of the DLRB loading procedure
DB/N:
PUSH NEXT/PREV
DB/N:
PUSH NEXT/PREV
NOTE: The name of the data base follows the DB/N: indication except if the DLRB has never been loaded.
(2) Automatic display after failure of a DLRB loading procedure
UP-LOADING ERROR
PUSH SEL CTL
Fault symptom origin:
UP-LOADING ERROR
PUSH SEL CTL
Fault symptom origin:
- unwritten in EEPROM data base
- abnormal interrupt of the protocol with the portable data loader (as per ARINC 615)
(3) STANDBY message
STANDBY
PUSH NEXT/PREV
This menu is displayed before the programmed scrolling menu
STANDBY
PUSH NEXT/PREV
This menu is displayed before the programmed scrolling menu
G. ARINC 615A Interface
(1) The OANC is capable of high speed data loading (ARINC 615A norm) and is connected by Ethernet buses (input/output) and one Load Enable discrete.
6. Component Description
A. Data Loading Connector
The CDLC is made of a 53 pin connector mounted on a plate, located on the overhead panel, in panel 52VU and protected by a blanking plate.
It allows, only when a PDL is connected, to perform the same data loading operation as with the former MDDU after removing the blanking plate fixed with the two quarter turn fasteners.
The data loading operation is performed on ground only, when a PDL is connected and a target is selected on the DLS.
When a PDL is connected, the "load enable" discrete that comes from LGCIU1 to pin 18 of the CDLC (2TD), is connected to pin 19 of the CDLC (2TD) on PDL side in order to send this information to the airborne computer that will be selected on the DLS to allow it to be data loaded.
The 115VAC power supply and its associated circuit breaker 3TD that were present for the MDDU have been removed.
A 28VDC power supply is also available for PDL that needs it and is controlled by the circuit breaker 14TD.
The CDLC has no impacts on the use of the other equipment part of the data loading architecture like the DLRB and DLS.
The center pedestal panel 117VU has two 53-pin connectors (a CDLC (2147VC) and a dedicated OANC data loading connector (2148VC)) protected by a blanking plate.
The connector 2147VC allows, only when a PDL is connected, to perform the same data loading operation as the MDDU (former), after removing the blanking plate fixed with the two quarter turn fasteners.
The connector 2148VC allows to perform OANC high speed data loading.
The data loading operation through both the connectors is performed on ground only, when a PDL is connected.
In addition, for data loading through connector 2147VC, the target must also be selected on the DLS.
When a PDL is connected, a discrete signal from LGCIU1 is sent to pin 18 of the data loading connector, which is electrically interconnected to pin 19.
If the PDL is connected to 2147VC, then pin 19 sends it as a "Load Enable" discrete signal to the respective target computer which was selected on the DLS for data loading.
If the PDL is connected to 2148VC, then a "Load Enable" discrete signal goes directly to the OANC.
The PDL used for low speed data loading through connector 2147VC is supplied with 28VDC and 115VAC through circuit breaker 14TD and 3TD respectively.
The PDL used for OANC high speed data loading through connector 2148VC is supplied with 28VDC through circuit breaker 14TD.
The Connectors have no impact on the use of the other equipment (part of the data loading architecture) like the DLRB and the DLS.
The CDLC is made of a 53 pin connector mounted on a plate, located on the overhead panel, in panel 52VU and protected by a blanking plate.
It allows, only when a PDL is connected, to perform the same data loading operation as with the former MDDU after removing the blanking plate fixed with the two quarter turn fasteners.
The data loading operation is performed on ground only, when a PDL is connected and a target is selected on the DLS.
When a PDL is connected, the "load enable" discrete that comes from LGCIU1 to pin 18 of the CDLC (2TD), is connected to pin 19 of the CDLC (2TD) on PDL side in order to send this information to the airborne computer that will be selected on the DLS to allow it to be data loaded.
The 115VAC power supply and its associated circuit breaker 3TD that were present for the MDDU have been removed.
A 28VDC power supply is also available for PDL that needs it and is controlled by the circuit breaker 14TD.
The CDLC has no impacts on the use of the other equipment part of the data loading architecture like the DLRB and DLS.
The center pedestal panel 117VU has two 53-pin connectors (a CDLC (2147VC) and a dedicated OANC data loading connector (2148VC)) protected by a blanking plate.
The connector 2147VC allows, only when a PDL is connected, to perform the same data loading operation as the MDDU (former), after removing the blanking plate fixed with the two quarter turn fasteners.
The connector 2148VC allows to perform OANC high speed data loading.
The data loading operation through both the connectors is performed on ground only, when a PDL is connected.
In addition, for data loading through connector 2147VC, the target must also be selected on the DLS.
When a PDL is connected, a discrete signal from LGCIU1 is sent to pin 18 of the data loading connector, which is electrically interconnected to pin 19.
If the PDL is connected to 2147VC, then pin 19 sends it as a "Load Enable" discrete signal to the respective target computer which was selected on the DLS for data loading.
If the PDL is connected to 2148VC, then a "Load Enable" discrete signal goes directly to the OANC.
The PDL used for low speed data loading through connector 2147VC is supplied with 28VDC and 115VAC through circuit breaker 14TD and 3TD respectively.
The PDL used for OANC high speed data loading through connector 2148VC is supplied with 28VDC through circuit breaker 14TD.
The Connectors have no impact on the use of the other equipment (part of the data loading architecture) like the DLRB and the DLS.
B. DLRB FIN: 102-TD
The face of the DLRB includes four ASN-E0390 DD 01 P connectors named A, B, C, D, one identification plate and a free space for the buyer's CMS sticker.
The face of the DLRB includes four ASN-E0390 DD 01 P connectors named A, B, C, D, one identification plate and a free space for the buyer's CMS sticker.
(1) Mechanical characteristics
(a) Size
1 Height: 170
2 Width: 141
3 Depth: 162
(b) Weight: 2 kg (plus or minus) 0.2 kg).
(c) Attachment: by four holes for screws of 5 mm dia.
(2) Electrical characteristics
(a) Power supply voltage: 28VDC
(b) Consumption: 7.5 W (this power includes DLS consumption).
C. DLS FIN: 101-TD
The DLS is the remote unit which commands the DLRB. The user interface consists in a two-line LCD display, and ON/OFF switch and three keys on the front panel.
The ON/OFF switch allows to put DLRB in "active or inactive" state through the ON/OFF discrete output. The ON/OFF switch does not command directly the DLS power supply. The DLS is powered by the DLRB through its supply outputs.
When powered on, the two-line screen displays the name of the LRU channel and its state (selected/not selected). The PREV and NEXT keys allow scrolling inside the allowed LRU name list. The SEL CTL key allows a LRU to be selected or deselected.
The DLS is the remote unit which commands the DLRB. The user interface consists in a two-line LCD display, and ON/OFF switch and three keys on the front panel.
The ON/OFF switch allows to put DLRB in "active or inactive" state through the ON/OFF discrete output. The ON/OFF switch does not command directly the DLS power supply. The DLS is powered by the DLRB through its supply outputs.
When powered on, the two-line screen displays the name of the LRU channel and its state (selected/not selected). The PREV and NEXT keys allow scrolling inside the allowed LRU name list. The SEL CTL key allows a LRU to be selected or deselected.
(1) Mechanical characteristics
(a) Size
1 Height: 46.8 mm
2 Width: 146
3 Depth: 146.9
(b) Weight: 0.5 kg (plus or minus 0.125 kg)
(c) Attachment: by four quarter turn fasteners.
(2) Electrical characteristics
(a) Power supply voltage: 28VDC from DLRB.
(b) Consumption: 1.2 W.
7. Operation
A. DLRB
The DLRB is based on modern technology such as microprocessor and programmable logic devices. Design is made of full static devices: no switching part or electro-mechanical device is mounted inside the equipment. Operation of the equipment is driven by software.
The DLRB is based on modern technology such as microprocessor and programmable logic devices. Design is made of full static devices: no switching part or electro-mechanical device is mounted inside the equipment. Operation of the equipment is driven by software.
(1) Mother board assembly
The mother board assembly is composed of three boards. Their main function is to ensure interconnection between the four front connectors and the application board and to offer protection against disturbance of any type present on the input or output signals.
The mother board assembly is composed of three boards. Their main function is to ensure interconnection between the four front connectors and the application board and to offer protection against disturbance of any type present on the input or output signals.
- one board ensures external interconnection.
- one board ensures internal interconnection.
- one board fulfills Electromagnetic Interference (EMI) filter function and ensures lightning protection.
(2) Children board
(a) Two identical boards are in charge of multiplexing and de-multiplexing the ARINC 429 buses devoted to target LRU. A discrete Load Enable output line is provided with each ARINC 429 bus.
(b) Power supply and ARINC buffer boards
- one board provides internal power supply of equipment, discrete inputs and outputs and signal adaptation of ARINC 429 buses.
- one board provides central processing unit of DLRB. It is a classic processor board with a permanent memory for data base storage and an ARINC 429 transceiver, able to run only in low speed mode. ARINC 429 transceiver is used only for data loading.
B. DLS
The DLS is made of three boards interconnected by way of flexible wires:
The DLS is made of three boards interconnected by way of flexible wires:
- a board ensures a mechanical and an electrical interface for the three tactile keys PREV NEXT and SEL CTL. This board is located just behind the front panel of the DLS.
- a board ensures the serial-to-parallel conversion and panel backlighting control.
- a board provides the interconnection between the board which ensures the serial-to-parallel conversion and the rear connector and supports Electromagnetic Interference (EMI).
8. Operation/Control and Indicating
A. Portable Data Loader
(1) Principle of uploading/downloading procedure
As dataloading is performed by a portable data loader, if you want more information, refer to portable data loader user-guide or to the maintenance procedure related to the equipment you want to upload or download.
As dataloading is performed by a portable data loader, if you want more information, refer to portable data loader user-guide or to the maintenance procedure related to the equipment you want to upload or download.
(2) Security recommendation
The data security of the last generation of Portable Data Loaders (P/N P2KABF02)was improved by the hardening of the equipment and the implementation of a digital signature check.
Airbus recommends that you use digital signatures to ensure integrity and authenticity of the software used in onboard computers.
To get more information related to Airbus data security considerations, refer to the Airbus Product Security community, available on Airbus World.
Access to this community is for nominated ASFPs (Airline Security Focal Points), because it contains sensitive information.
If you do not have access to the Airbus Product Security community, or if more information is necessary about this topic, use the TechRequest tool and ask a question in the "Engineering" > "A/C security" section.
The data security of the last generation of Portable Data Loaders (P/N P2KABF02)was improved by the hardening of the equipment and the implementation of a digital signature check.
Airbus recommends that you use digital signatures to ensure integrity and authenticity of the software used in onboard computers.
To get more information related to Airbus data security considerations, refer to the Airbus Product Security community, available on Airbus World.
Access to this community is for nominated ASFPs (Airline Security Focal Points), because it contains sensitive information.
If you do not have access to the Airbus Product Security community, or if more information is necessary about this topic, use the TechRequest tool and ask a question in the "Engineering" > "A/C security" section.
B. DLS
The DLS enables selection of a dedicated computer. An LCD display permits to show, in English, the name of the loadable systems. This system computer list can be updated via the portable data loader and a disk.
The data loading selector is powered by the DLRB. The DLS is operational on ground only.
The face includes:
The DLS enables selection of a dedicated computer. An LCD display permits to show, in English, the name of the loadable systems. This system computer list can be updated via the portable data loader and a disk.
The data loading selector is powered by the DLRB. The DLS is operational on ground only.
The face includes:
- a two-line LCD alphanumeric display
- three keys
- a power ON/OFF switch.
(1) Keys
Three tactile keys are used for target selection. The PREV and NEXT keys permit to scroll into the target list of LRUs. The SEL CTL key permits to select or deselect the desired LRU. This list of computers displayed on the DLS is extracted from the DLRB data base.
Three tactile keys are used for target selection. The PREV and NEXT keys permit to scroll into the target list of LRUs. The SEL CTL key permits to select or deselect the desired LRU. This list of computers displayed on the DLS is extracted from the DLRB data base.
(a) PREV and NEXT keys
The operator scrolls forward and backward through the list of loadable computers with PREV and NEXT keys.
The operator scrolls forward and backward through the list of loadable computers with PREV and NEXT keys.
(b) SEL CTL key
First push action on the SEL CTL key permits to select the displayed computer to be loaded. Second push action permits to deselect the previous computer.
First push action on the SEL CTL key permits to select the displayed computer to be loaded. Second push action permits to deselect the previous computer.
C. DLRB
The DLRB allows selection between several target LRUs, to be loaded by a data loader. The connection concerns ARINC 429 bi-directional buses and discrete associated Load Enable lines. The number of connected LRUs can grow up to 26.
The purpose of the DLRB is to do maintenance operation of target LRU on board the aircraft. The DLRB operates only in ground condition. In flight, inactive state is automatically entered.
The DLRB is controlled by an internal processor board. It contains a saved data base which stores the name of all addressable target computers. This data base can be updated by using the data loader and selecting the DLRB itself in the list of targets. So, it is possible to configure or reconfigure the system in compliance with aircraft configuration or update.
ARINC 615 protocol is used also for updating DLRB data base from the data loader.
Equipment is provided with BITE capability for maintenance purpose and to assure good reliability of functional state of system. A discrete input on the DLRB is used for triggering BITE computation on request. A discrete output provides the BITE state.
The main functions of the DLRB are:
The DLRB allows selection between several target LRUs, to be loaded by a data loader. The connection concerns ARINC 429 bi-directional buses and discrete associated Load Enable lines. The number of connected LRUs can grow up to 26.
The purpose of the DLRB is to do maintenance operation of target LRU on board the aircraft. The DLRB operates only in ground condition. In flight, inactive state is automatically entered.
The DLRB is controlled by an internal processor board. It contains a saved data base which stores the name of all addressable target computers. This data base can be updated by using the data loader and selecting the DLRB itself in the list of targets. So, it is possible to configure or reconfigure the system in compliance with aircraft configuration or update.
ARINC 615 protocol is used also for updating DLRB data base from the data loader.
Equipment is provided with BITE capability for maintenance purpose and to assure good reliability of functional state of system. A discrete input on the DLRB is used for triggering BITE computation on request. A discrete output provides the BITE state.
The main functions of the DLRB are:
- switching the data loader ARINC 429 bus to the desired LRU bus, including LOAD ENABLE outputs.
- interfacing with the operator through the DLS (LCD display, PREV, NEXT and SEL keys).
- reading the ON/OFF and AIR/GND discrete inputs to determine its functional state (active or inactive).
- uploading its data base on request.
- triggering its self-tests on CFDIU request and expressing BITE result on its NOT HEALTHY output.
- communicating with the maintenance terminal or test bench.
9. BITE
A. DLRB BITE Test
The function of the Built-In Test Equipment (BITE) is to monitor the operation of the DLRB and DLS (via the DLRB), analyze and confirm faults but these faults are not stored in the Non-Volatile Memory (NVM). The DLRB/DLS is a type 3 system.
The CFDIU triggers DLRB/DLS self-test sequence through a discrete input. The DLRB outputs the resulting BITE status on an output discrete (this result includes BITE of DLS).
The DLS self-test is done by the central unit of the DLRB. The BITE capability of the DLS is passive and consists in information of status bits. These bits are available by the way of the RS422 line.
Self-test is systematically done at power-up sequence regardless of the TEST and ON/OFF discrete inputs. However, aircraft ground configuration is required (i.e .: AIR/GROUND signal).
The DLRB BITE performs the following functions:
The function of the Built-In Test Equipment (BITE) is to monitor the operation of the DLRB and DLS (via the DLRB), analyze and confirm faults but these faults are not stored in the Non-Volatile Memory (NVM). The DLRB/DLS is a type 3 system.
The CFDIU triggers DLRB/DLS self-test sequence through a discrete input. The DLRB outputs the resulting BITE status on an output discrete (this result includes BITE of DLS).
The DLS self-test is done by the central unit of the DLRB. The BITE capability of the DLS is passive and consists in information of status bits. These bits are available by the way of the RS422 line.
Self-test is systematically done at power-up sequence regardless of the TEST and ON/OFF discrete inputs. However, aircraft ground configuration is required (i.e .: AIR/GROUND signal).
The DLRB BITE performs the following functions:
- acquisition of discrete input signals
- communication with the DLS (via RS422) and CFDIU (via a discrete output).
The BITE has two basic functions: - power on self-test
- test result.
B. Maintenance message
NOTE: When the failure occurs on the DLRB, BITE test result gives this maintenance message:
| ----------------------------------------------------------------------------- |
| MAINTENANCE MESSAGE CLASS INT/EXT ATA REF |
| DLRB(102TD)/DLS(101TD) - - 31-38-34 |
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