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BENDIX/KING KLN 90B
Rev 5, April/2003 10521I05.TDC Page 2-5
H. Pin 13; RS 232 Out
The KLN 90B outputs data in RS 232 format on this pin. It can be used to inter-
face with certain types of ELT’s, fuel sensors, and moving map displays, and
fuel management systems. For specific label information, refer to Appendix A.
I. Pin 14; WPT ALERT
Pin 14 is the Waypoint Alert annunciator output. This output is tied to a remote
annunciator lamp. When the line is pulled low the annunciator lamp will illumi-
nate. The annunciator will be on whenever waypoint alerting is occurring. For
more complete information refer the KLN 90B Pilots Guide, P/N 006-08773-
0000.
J. Pin 15; MSG
Pin 15 is the Message annunciator output. This output is tied to a remote annun-
ciator lamp. When the line is pulled low the annunciator lamp will illuminate. The
annunciator will be on whenever the message prompt on the KLN 90B is on. For
more complete information refer to the KLN 90B Pilots Guide, P/N 006-08773-
0000.
K. Pin 16; APPROACH ACTIVE
Pin 16 is the Approach Active annunciator output. This output is tied to a remote
annunciator lamp. When the line is pulled low the annunciator lamp will illumi-
nate. The annunciator will be on whenever the unit is in the approach mode. For
more complete information refer the KLN 90B Pilots Guide, P/N 006-08773-
0000.
L. Pin 17; APPROACH ARM
Pin 17 is the Approach Arm annunciator output. This output is tied to a remote
annunciator lamp. When the line is pulled low the annunciator lamp will illumi-
nate. The annunciator will be on whenever the unit is in the approach arm mode.
For more complete information refer the KLN 90B Pilots Guide, P/N 006-08773-
0000.
M. Pin 18; Nav Super Flag
Pin 18 is the GPS NAV Super Flag output. A logic high shall be > 18 VDC when
the voltage at pin 40 is > 24.8 VDC. A logic high shall be > 10 VDC when the
voltage at pin 40 is > 12.4 VDC. A logic high shall be > 20 VDC when the voltage
at pin 40 is + 27.5 VDC. A logic low
shall be < 3.5 VDC.
N. Pins 19, 20, 21, 22, and 25; NAV Flag +, +From, +To, + RIGHT, and +LEFT/
NAV Flag -
These outputs function like the outputs from standard navigation converters. For
the specifications on these outputs refer to Paragraph 1.3.2 in Section 1 of this
manual.