User's Guide

DRAFT
Page 2-8
17 Mar 2016
23-15-87
© Honeywell International Inc. Do not copy without express permission of Honeywell.
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-500 SDU and SCM
(1) Making Cockpit Calls
You can manually dial calls or dial previously saved telephone numbers from the TCP’s
telephone directory.
When the SDU cannot complete a call, the TCP displays CALL FAIL.The call and event logs
provide information about the cause of the call failure. Call and event logs are accessible to
avionics technicians through the maintenance port of the SDU.
(a) Making Calls from the Scratchpad
A call can only be initiated using the buttons on the TCP.
To make a call:
(1) Navigate to the SAT-PHONE 1/2 page.
(2) Enter a number in the TCP scratchpad using the following pattern.
00+CC+NNN+NUMBER (for calls within North America)
011+CC+NNN+NUMBER (for International calls)
where:
• 00 and 011 are access codes
• CC is the country code (Country Code may be up to 4 digits)
• NNN is the city or area code.
NOTE:
• You can enter up to 18 characters in the scratchpad (including hyphens), but the
maximum number of digits that can be dialed is 17.
• Hyphens are not necessary. If you wish to use hyphens, press the +/- key on the
scratchpad.
• To delete an incorrect character, press CLR on the scratchpad.
• To delete a number, press CLR on the TCP.
The number appears at the bottom of the TCP screen and MANUAL ENTRY
appears under the channel label.
DRAFT as of
4 Mar 2016