User's Manual

Table Of Contents
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
T
3
CAS/Part No.9005000
Table 4-3: Gables Control Panel Interface Descriptions (cont)
Connector
Pin
Designation
Functional Description
J1/J2-12
XPDR FAIL #2 INPUT: (J1/J2-12)
The G7130-XX ATC/TCAS control panel transponder fail annunciator is controlled
by this input. When the transponder is operating normally this input remains
grounded. Otherwise, the transponder opens this input to indicate a transponder
failure. The control panel turns the annunciator ON to alert the user of a
transponder malfunction. The transponder fail annunciator turns on only when the
failed transponder is selected by the XPDR 1-2 switch.
Connect this pin to the transponder XPDR FAIL #2 Discrete Output.
J1/J2-13
IDENT INPUT: (J1/J2-13)
The IDENT discrete input provides another means of activating the IDENT
function. This input allows the control panel to interface with an external IDENT
switch located in the Flight Deck. When the input is grounded, the IDENT function
is activated; otherwise it should remain open.
J1/J2-14
TRANSPONDER FAIL LOGIC DISCRETE INPUT: (TDR-94D ONLY) (J1/J2-14)
This input allows the control panel to use +28 V dc logic from a Collins TDR-94D
transponder to control the transponder fail annunciator. This input should not be
used unless a Collins TDR-94D transponder is used with this control panel.
J1/J2-15
AIR/GROUND SW DISCRETE OUTPUT: (J1/J2-15)
This output is directly connected to the AIR/GND discrete input (J1/J2-24). This
output can be routed directly to the transponder to disable it (Standby), and
terminate ATC code replies. J1 discrete logic operates independently from J2.
J1/J2-16
AIR DATA SOURCE OUTPUT: (J1/J2-16)
Ground/Open output that is dependent on the front panel ALT RPTG and XPDR
switch positions. This discrete output is enabled when altitude reporting is selected
in the ON mode. When altitude reporting is selected OFF, the J1/J2-16 output
remains in the OPEN state.
This discrete output is connected to the transponder AIR DATA SOURCE SELECT
Discrete Input.
J1/J2-18
MONITOR LAMP POWER INPUT: (J1-/J218)
These inputs are used as the input power source for the transponder fail
annunciator on the front panel of the control panel. The input supply voltage is a
dimmable +28 V dc at 200 mA maximum.
J1/J2-20
TRANSPONDER STRAPPING CONFIGURATION: (J1/J2-20)
This discrete input programs the control panel to operate, and be able to properly
interface to one of two types of transponder configurations. If this input is left
OPEN then the control panel operates in accordance with ACSS transponder
specifications. If the input is GROUNDED, it is programmed to operate in
accordance with Collins transponder specifications.
4-72
04 Nov 2014
34-45-29
Pub. No. 8600200-001, Revision 004
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