CHAPTER
31
Indicating and Recording
Systems
CHAPTER 31 Indicating and Recording Systems
31-CONTENTS
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CHAPTER 31
Indicating and Recording Systems
CH-SC-SU Subject Page Effectivity
31-61-00 PRIMARY DISPLAY SYSTEM -BRIGHTNESS CONTROLS AND 98.229 BEJ ALL
DISPLAY UNITS TEST DISPLAY
31-61-00 PRIMARY DISPLAY SYSTEM -DISPLAY SWITCHES TEST DISPLAY 98.232 BEJ ALL
31-CONTENTS
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31-09-00
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SYSTEMS CARD FILES -INTRODUCTION
Purpose * RH -right hand
* RSCF -right systems card file
The systems card files hold the ARINC 429 bus interface cards * WOW -weight-on-wheels *
for essential systems. xmtr -transmitter
They also hold the ARINC signal gateway (ASG) cards. The ASG cards change data formats between ARINC 429 and ARINC
629. They supply the interface between the interface cards and the systems ARINC 629 buses.
Abbreviations and Acronyms
*
ACIPS -airfoil and cowl ice protection system
*
APU -auxiliary power unit
*
ARINC -Aeronautical Radio, Inc.
*
ASG -ARINC 629 signal gateway
*
CFPS -card file power supply
*
CH -channel
*
CSDS -cargo smoke detection system
*
det -detection
*
DLODS -duct leak and overheat detection system
*
ECS -environmental control systems
*
ESDS -electrostatic discharge sensitive
*
FODC -fire/overheat detection card
*
HYDIM -hydraulics interface module
*
intfc -interface
*
LH -left hand
*
LRU -line replaceable unit
*
LSCF -left systems card file
* ovht -overheat
*
PSU -power supply unit
*
rcvr -receiver
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SYSTEMS CARD FILES -INTRODUCTION
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SYSTEMS CARD FILES -GENERAL DESCRIPTION
General The left and right ASG cards in each card file connect to the left
and right systems ARINC 629 buses. The systems card files hold cards for ARINC 429 systems. These cards calculate data for their systems.
Data moves between the cards in the card files and the left and right ARINC 629 systems buses. Two ARINC signal gateway (ASG) cards in each card file supply the interface to and from the 629 data buses.
Components
There are two systems card files in the airplane, left and right. The system card files contain:
*
Power supply cards (4 in each)
*
ARINC signal gateway (ASG) cards (2 in each)
*
ARINC 429 system cards (8 in Left)
*
ARINC 429 system cards (9 in Right).
Interfaces
The eight ARINC 429 cards in the left system card file (LSCF) connect to their systems and to the ASG cards. The forward cargo smoke detector connects directly to the ASG cards in the LSCF.
The nine ARINC 429 cards in the right system card file (RSCF) connect to their systems and to the ASG cards. The aft cargo smoke detector connects directly to the ASG cards in the RSCF.
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777 AIRCRAFT MAINTENANCE MANUAL
SYSTEMS CARD FILES -GENERAL DESCRIPTION
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SYSTEMS CARD FILES -COMPONENT LOCATION -MAIN EQUIPMENT CENTER
General
These two systems card files are in the main equipment center:
*
P85 Left systems card file (LSCF)
*
P84 Right systems card file (RSCF).
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SYSTEMS CARD FILES -COMPONENT LOCATION -MAIN EQUIPMENT CENTER
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SYSTEMS CARD FILES -COMPONENT LOCATION -LSCF CARDS
General
The left systems card file (LSCF) in the P85 panel has 18 slots, A2 through A19. It contains the following interface cards:
*
A2 -PSU -preregulator card
*
A3 -PSU -linear/monitor card
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