NOTE : If you do not do this procedure, access to the ILS BITE will not
____
 operate.

 (1) Do the testing and fault isolation procedure (Ref. CMM 313234) in the component shop to reset the EEPROM of the CFDIU before you install it on the aircraft.
 1EFF : ALL 1 31-32-34Page 405 1 1 May 01/05 1 1 1CES 1 **ON A/C ALL

 Subtask 31-32-34-420-050
 B. Installation of the CFDIU
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Remove the blanking caps from the electrical connectors (2).

 (4)
 Make sure that the electrical connectors (2) are in the correct condition.

 (5)
 Instal the CFDIU (1) on its rack (3).

 (6)
 Push the CFDIU (1) on its rack (3) to connect the electrical connectors (2).

 (7)
 Engage the nuts (4) on the lugs (5) and tighten. Subtask 31-32-34-865-052

 C.
 Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2TW, 8TW

 Subtask 31-32-34-740-050
 D. Do the BITE test of the Centralized Fault Display Interface Unit
 (Ref. TASK 31-32-00-740-002).

 NOTE : If the clock is defective, you can re-initialize the time and date
____
 on the MCDU (Ref. TASK 31-32-00-750-001).

 Subtask 31-32-34-970-050
 E. If available, you can load the maintenance filter data base of the CFDIU (Ref. TASK 31-32-00-600-001).
 1EFF : ALL 1 31-32-34Page 406 1 1 Feb 01/05R 1 1 1CES 1

 5. Close-up
________ Subtask 31-32-34-410-050
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access door 824 (Ref. TASK 52-41-00-410-002).

 (3)
 Remove the access platform(s).

 1EFF : ALL 1 31-32-34Page 407 1 1 Feb 01/05 1 1 1CES 1 DIGITAL FLIGHT DATA RECORDING SYSTEM INTERCONNECTION (FDIMU, DFDR , QAR)

________________________________________________________________________ DESCRIPTION AND OPERATION
_________________________
 1. General
_______
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-210,
 The main function of the DFDRS is to convert various critical flight parameters into a recordable form and to record them on a Digital Flight Data Recorder. The stored data is also applicable to monitor the condition of the connected aircraft systems. The system design covers the basic DFDRS. This includes the units and parameters which are necessary for the mandatory requirements and an additional part to standardize the installation for different customers. The electrical characteristic is in compliance with ARINC 717.

R **ON A/C 106-149, 211-299, 301-399, 401-499,
 The Digital Flight-Data Recording-System (DFDRS) is a part of the Flight Data Interface and Management System (FDIMS). The FDIMS integrates:
 -
The DFDRS and

 -
The Aircraft Integrated Data System (AIDS). Refer to Chapter 31-36-00 for

 details. The FDIMS is controlled by the Flight Data Interface and Management Unit (FDIMU).
 The main function of the DFDRS is to convert various critical flight parameters into a recordable form and to record them on a Digital Flight Data Recorder (DFDR). The stored data is also applicable to monitor the condition of the connected aircraft systems. The system design covers the basic DFDRS. This includes the units and parameters which are necessary for the mandatory requirements and an additional part to standardize the installation for different customers. The electrical characteristic is in compliance with ARINC 717.
 **ON A/C ALL
 2. Component Location
__________________
 1EFF : ALL 1 31-33-00Page 1 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-099, 101-105,

 **ON A/C 001-049, 101-105,
 (Ref. Fig. 001)
 **ON A/C 051-099,
 (Ref. Fig. 001A)
 **ON A/C 001-049, 051-099, 101-105,
 Installation Zones and Location Numbers -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA
 | | | | DOOR | REF. ______________________________________________________________________________ 1TU DFDR 312 312AR 31-33-55 2TU FDIU 87VU 127 824 31-33-34 3TU QAR 87VU 127 824 31-33-52 3TU1 QAR Data Disk 31-33-00 6TU ACCELEROMETER-THREE AXIS 145 241JF 31-33-16

R **ON A/C 106-149, 211-299, 301-399, 401-499,
 (Ref. Fig. 001B)
 Installation Zones and Location Numbers
　
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