User's Manual
Table Of Contents
- T3CAS_Section_5
- 5 Adjustment/Test
- 1. General
- 2. Equipment
- 3. Initial Harness Checkout (New Installations Only)
- 4. System Self-Tests
- 5. Return-to-Service Test
- 6. Operational Software Loading Using an ARINC 615A Portable Data Loader or Compact Flash Card
- 7. Downloading Information from the TP3PCAS Using a CF Card
- 1. Obtain a New or Blank Compact Flash (CF) card.
- 2. Copy to the New or Blank CF card the appropriate ‘Header File’
- a) Header files are files copied to the New or Blank CF card that will instruct the computer unit what is desired to be downloaded.
- b) Header files needed to download Maintenance Data, Event Data and CRC Part Numbers can be obtained from ACSS Customer Services at +1-623-445-7070 or crc.acss@l-3com.com.
- 3. For downloading Maintenance Data, Event Data or CRC Part Numbers the aircraft does not need to be in an on-ground configuration.
- 4. Apply power to the computer unit.
- 5. Insert the CF card.
- 6. For ACSS part numbers 9005000-10000, -10101, -10202, and -10204 the DATA STATUS LED will UblinkU green once; this indicates the unit recognized that a CF card was inserted.
- 7. For ACSS part numbers 9005000-11203, -11801 and -55801 the DATA STATUS LED will UblinkU green while reading the header file and performing the action defined in the header file.
- 8. Flight Data Recording
- 1. T3CAS part numbers 9005000-10000, -10101, -10202, and -10204 only support FAT16 CF card formatting. T3CAS part numbers 9005000-11203, -11801 and -55801 support both FAT16 and FAT32 CF card formatting.
- B. Flight Data
- 1. Obtain a New or Blank CF Card.
- 2. Copy to the New or Blank CF Card the Appropriate Header File.
- 3. Header files are files copied to the New or Blank CF card that will instruct the computer unit what is desired to be downloaded.
- 4. For Flight Data Recording, the aircraft does not need to be in an on-ground configuration.
- 5. Apply power to the computer unit.
- 6. Insert the CF card.
- B. Flight Data
- 9. Downloaded Maintenance Data, Event Data And Flight Data May Be Sent To ACSS Customer Services For Analysis
- 5 Adjustment/Test
- T3CAS_Section_6
- T3CAS_Section_7
- 7 Maintenance Practices
- 1. General
- 2. Equipment and Materials
- 3. Procedure for the TP3PCAS Computer Unit
- 4. Procedure for the APM (Not applicable for part numbers 9005000-10000, -10101, -10202, -10204, or -11203)
- 5. Procedure for the Directional Antenna
- 6. Procedure for the Omnidirectional Antenna (Applicable to part numbers 9005000-11203, -11801 and -55801)
- 7. Procedure for the Control Panel
- 8. Procedure for the VSI/TRA Display
- 9. Instructions for Continued Airworthiness, FAR Part 25.1529
- 7 Maintenance Practices
- T3CAS_Section_8
- T3CAS_Section_9
- T3CAS_Section_10
- T3CAS_Appendix_A
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
T
3
CAS/Part No.9005000
Table 4-4: Thales 41-Pin VSI-TCAS Interface Description (cont)
Connector
Pin
Designation
Functional Description
J1-4, 6
ARINC 565 VERTICAL SPEED ac INPUT: (J1-4 HIGH, J1-6 LOW)
Pins 4, 5, 6, and 16 are inputs to the VSI/TRA from an ARINC 565 air data
computer or IRS. A 26 V ac, 400-Hz reference signal is received on pin 5, (HI) and
pin 16, (LO). Pin 4, (HI) and pin 6, (LO) provides an amplitude-modulated 400-Hz
signal with a maximum voltage of ±6.25 V. The RMS value of this signal is used by
the VSI-TCAS to compute and display the vertical rate. The phase of this signal is
compared with the reference signal to determine if the rate is positive or negative.
An in-phase signal equals a positive rate, an out-of- phase signal indicates a
negative rate. Also see pins 8 and 31.
J1-5
VERTICAL SPEED 26 V ac, 400-HZ REFERENCE INPUT (HI):
See pins 4 and 16.
J1-8
VERTICAL SPEED VALID DISCRETE INPUT:
The VSI-TCAS receives a +28-V dc signal from an ARINC 575 or 565 air data
computer indicating its valid operation. An “open” at this pin indicates an invalid
vertical speed signal from the ADC. This pin is only used when pins (1, 2, 3) or (4,
5, 6, and 16) are used. Also see pins 1 and 4.
J1-9, 10
5-V LAMP-DIMMINGINPUT: (J1-9 C, J1-10 H)
The VSI-TCAS monitors the Flight Deck lamp voltage bus at pins 9 and 10. This
voltage may be either ac or dc. The back lighting in the VSI/TRA is adjusted by and
tracks this voltage from 0.5 V to 5 V. If this input falls below 0.5 V or is absent, the
VSI-TCAS sets itself to a nominal level to prevent the display from going dark due
to loss or failure of the lamp-dimming bus.
J1-11
ARINC 429 (B) TCAS TA/RA DATA BUS INPUT:
Paired with pin 26. These pins connect to a T
3
CAS computer unit.
J1-12
ARINC 429 (B) VERTICAL SPEED NO.1 INPUT BUS:
Paired with pin 27. These pins connect to Digital ADC No.1 or IRS No 1.
J1-14
ARINC 429 (B) VERTICAL SPEED NO.2 INPUT:
Paired with pin 30. These pins connect to Digital ADC No.2 or IRS No.2.
J1-15
CONFIGURATION STRAP COMMON INPUT:
This pin is the return line for the configuration strapping pins J1-17, and J1-32 thru
35.
J1-16
VERTICAL SPEED 26 V ac, 400-HZ REFERENCE INPUT (C):
See pins 4 and 5.
4-74
04 Nov 2014
34-45-29
Pub. No. 8600200-001, Revision 004
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