User's Guide

DRAFT
Page 2-7
17 Mar 2016
23-15-87
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-500 SDU and SCM
© Honeywell International Inc. Do not copy without express permission of Honeywell.
To view log status:
(a) On the SAT-PHONE 1/2 menu, press the button next to LOG.
The SATCOM LOG menu appears.
(b) The log status appears on the line below STATUS.
C. Accepting and Making Calls in the Cockpit
You can make air-to-ground and air-to-air calls using the ARINC 781 system, the TCP, and one or
two four-wire headsets. You can manually dial calls or dial previously saved telephone numbers
from the TCP’s telephone directory.You can make air-to-ground and accept ground-to-air voice
calls using the A781-500 system, the TCP, the Audio Control Panel (ACP), and a four-wire cockpit
headset.
The four-wire cockpit headset supports Push to Talk (PTT) mode. Push to Talk mode mimics the
way an HF radio functions. The user's voice is only transmitted when the 'Mic On' input is asserted
i.e. grounded.
Table 2-1. A781-500 System Log Status
Log Status Description
SAFE MODE Configuration error detected
HSR NOT READY High stability oscillator is in a warming condition
AES ID NOT READY Displayed until a non-zero ICAO address is present
NAV DATA UNAVAIL Insufficient navigation data available
CC NOT READY Channel card has not fully booted
LOGGED OFF
A781-500 system not logged on to the satellite network.
Awaiting input from the user
TUNING TO SAT
Tuning and scanning for reception from the selected
satellite
DET SYS TABLE Updating the Satellite table
SPOT BEAM SEARCH Selecting the optimal spot beam
WAIT LOGON CONF Awaiting the logon confirmation from the satellite
WAIT LOGON ACK Awaiting for logon acknowledge from the GES
LOGGED ON Successfully logged on to GES
REJECT-TEMPORARY Logon rejected by the GES, but the condition is temporary
REJECT-PERMANENT
Logon rejected by the GES, and the condition is
permanent
REJECT-INV PARAM
Logon rejected by the GES due to invalid parameters, and
the condition is permanent
REJECT-AES INVAL
ICAO address was not accepted by the GES, the
condition is permanent
LOGGING OFF Starting the logoff process
Note: For the 4 reject states, these statuses only stay on the display for 4 seconds.
DRAFT as of
4 Mar 2016