Honeywell International Inc. KSN770 Manual De Usuario

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Page 3-73
6 Dec 2012
34-70-06
SYSTEM INSTALLATION MANUAL
066-01204 / 066-01213
© Honeywell International Inc. Do not copy without express permission of Honeywell.
3.11 DME Interface
3.11.1 Applicable Part Numbers
The KSN 7x0 are DME.
All part numbers and software revisions perform all DME functions.
3.11.2 Function
The SERIAL CLOCK, DATA, SYNC bus may be used to drive distance, groundspeed, and time-to-go 
indicators. This is a King Serial DME bus only.
King Serial DME allows display of the KSN 7xx distance, groundspeed, and time-to-go on Bendix/King 
KDI-572 and KDI-574 DME indicators.
The ARINC TRANSMITIER (ARINC 429) bus may be configured for high-speed or low-speed on the 
Maintenance pages, and contains a large variety of labels that may be used by many different receivers. 
Transmission of distance, groundspeed, and time-to-go is discussed in this chapter.
3.11.3 Requirements and Limitations
For proper functioning of the King Serial DME indicator interface, a DME receiver (in addition to the KSN 
7xx and the indicator) must be connected to the SERIAL CLOCK and SERIAL DATA lines.
When the KSN 7xx is mounted in the aircraft pedestal, some certification agencies (including the FAA) 
require a distance display in the pilot's scan area for IFR certification. Consult your approval agency for 
additional information.
The KSN 7xx may display distance, groundspeed and time-to-station on the KPI-553A, KDI-572, 
KDI-573 and KDI-574 DME distance displays. The DME in the aircraft continues to supply power to 
these displays while the KSN 7xx information is displayed. A NAV/GPS annunciator switch and relays 
can switch the DME display between displaying DME and GPS information (refer to the DME installation 
documentation for details).
3.11.4 Electrical Characteristics
A.
ARINC 429 Transmitter
J1-72
VOR/ILS TX A
J1-52
VOR/ILS TX B
This serial data bus conforms to ARINC 429 electrical characteristics, and may be configured for 
low-speed on the Maintenance pages. Many ARINC 429 labels are output on the ARINC 
TRANSMITTER bus. ARINC 429 labels relating to the distance indicator interface are shown in 
Table 3-11.
Draft as of 10/15/2012