Users Manual

ALL

EFFECTIVITY

Page 6-12

22 Apr 2019

23-15-49

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL

ASPIRE-400

(2) UARTs associated with:

(a) ACD processor to AISG and AISG to ACD processor

(b) FPGA to AP processor and AP processor to FPGA

(d) Control MPC to CC_B and Control CC_B to MPC.

(3) SCM - EEPROM

(4) PSC Discretes.

C. ARINC 429 and UART Transmit FIFO

(1) Each FIFO status register for ARINC 429 and the noted UARTs provides the word count,

referring how many words are already in the FIFO.

NOTE: UARTS associated with:

(a) ACD processor to AISG and AISG to ACD processor

(b) FPGA to AP processor and AP processor to FPGA

(d) Control MPC to CC_B and Control CC_B to MPC.

5. Standalone Identification System (SIS)

A. Aircraft Test Mode

(1) Aircraft Test Mode is available in Maintenance Mode and allows airline maintenance

personnel to execute certain BITE utilities that are not available during normal

Continuous Built-In Test (CBIT).

(2) Aircraft Test Mode utilities may or may not have an intrusive effect on normal SATCOM

operations.

(3) Spurious faults are not reported to the CFDS during Aircraft Test Mode.

NOTE: It is permissible to reduce BITE monitoring and or reporting during Aircraft

Test Mode.

(4) Prior to executing Commanded Self-Test, PIMBIT, or RF Carrier Test, the ACD:

(a) Configures the Data Arbitration Ethernet switch to:

1 Disable all internal interfaces with ACD, APP, and CC.

2 Retain the external interface with the front panel Ethernet, if ORT

enabled

3 Disable the following external interfaces:

a Ethernet #4

b Ethernet #11.

(5) Configures the Enhanced Ethernet Routing Switch to:

(a) Disable all internal interfaces with APP and CC.

(b) Disable the external interface with:

1 Ethernet #1

DRAFT

3rd rvw Draft as of:

29 January, 2020