82046-PG-B1
ST3400H PILOT’S GUIDE
Page 11-1
11 EXTERNAL SWITCH AND ANNUNCIATORS
External annunciators and switches may be optionally installed.
The supported external annunciators are:
TAWS
illuminates in amber whenever an amber caution is
present on the ST3400H display.
TAWS
illuminates in red whenever a red warning is present on
the ST3400H display.
TAWS
INH
illuminates whenever TAWS INH is present on the
ST3400H display. It also illuminates when TAWS alerts are
inhibited for any other reason, such as loss of GPS signal, no
terrain data, etc. This will correspond with a flagged terrain
display.
The supported external switch/ annunciators are:
MUTE
illuminates whenever the MUTE is displayed on the
ST3400H. Pressing the external MUTE switch has the same
function as the front panel MUTE switch. Holding the external
MUTE switch for more than 2 seconds has the additional function
of selecting the TAWS INH function as if TAWS INH was
selected on the pilot’s menu.
SENS
illuminates whenever LOW SENS is displayed on the
ST3400H. Pressing the external SENS switch has the same
function as the front panel SENS button, including the HOLD
function.
GS INH
illuminates when GS INHIBIT is selected. Pressing
external GS INH switch has the same function as the pilot’s menu
GS INHIBIT softkey.
