BACK
LX 9024 NOTE SHEET for TR-421B
The LX-9024 harness is design to aid in bench testing the TR-421B Transponder
and CD-422A/B Transponder Control Display. The harness is wired for the
CD-422A/B control with test points for the controller and TR-421B Transponder.
For the 429 buss there is a 9 pin DE-9S connector on the cable accessory box to
input customer supplied 429 buss signals.
The harness is used with the Linaire LX-3 test panel.
The LX-3 test panel STBY/OFF switch connects the 28V DC power to the units
under test. The LX-3 test panel meters the voltage and current of unit under
test.
The LX-3 C-Mode toggle switches provide for altitude code input to the
transponder. For mode B operation select Mode B on the LX-3 test panel.
To avoid confusion the IDENT, STBY/ON, A TEST, C TEST, and A, C, D mode
switches on the LX-3 panel are not wired to work with this unit. The units
control display supplies the signals and the panel switches would override the
control display’s input to the transponder.
The cable accessory box on the harness has the following
switches:
Heater for display controls with heater option.
SDI 1 /SDI 2 strap connection for system 1 or system 2 identification.
XSPONDER 1 /2 switches signals for testing control display as #1 or #2.
28VDC/5VDC LAMPS set for correct lamp voltage (note: 28VDC comes from
panel source and 5VDC comes from 5VDC power pack included with harness or
customer’s supply.
The data, clock and enable signals can be monitored at DATA, CLOCK, and
ENABLE tip jacks on the cable box. A switch is provided to redirect the
transponder’s display output and power supply enable for the transponder to
the display control inputs #1 or inputs #2. This allows testing the display
control in a dual transponder setup.
When using the 429 tuning buss connect it using a DE-9P to the connector on
the cable box. The units 429 output can be monitored at the tip jacks on the
cable box and is also available at the cable box connector.
The following list the pin out for the DE-9S on the cable box.
|
PIN
|
SIGNAL |
TR-421B P1001 |
| 1 |
429 IN 1A |
1 |
| 2
|
429 IN 1B
|
13
|
| 3
|
429 IN 2A
|
79
|
| 4
|
429 IN 2B
|
64
|
| 5
|
429 OUT A
|
5
|
| 6
|
429 OUT B
|
17
|
| 7
|
|
NC |
| 8
|
|
NC |
| 9
|
GROUND
|
45
SHIELDS GO HERE |
TR-421B P1001
|
CONNECTOR PIN # |
LINE IDENTIFICATION |
TEST POINTS |
NOTES |
|
P1001-66 |
GRAY CODE 1A |
CABLE BOX 1A |
|
|
P1001-51 |
GRAY CODE 1B |
CABLE BOX 1B |
|
|
P1001-77 |
GRAY CODE 2A |
CABLE BOX 2A |
|
|
P1001-92 |
GRAY CODE 2B |
CABLE BOX 2B |
|
|
P1001-5 |
429 OUT SIDE A |
CABLE BOX 429 OUT A |
|
|
P1001-17 |
429 OUT SIDE B |
CABLE BOX 429 OUT B |
|
|
P1001-86 |
POWER SUPPLY ENABLE |
CABLE BOX
PS ENABLE
|
|
|
P1001-73 |
TEST |
CABLE BOX TEST |
|
|
P1001-11 |
ALT |
CABLE BOX ALT |
|
|
P1001-101 |
VFR |
CABLE BOX VFR |
|
|
P1001-50 |
IDENT |
CABLE BOX IDENT |
|
|
P1001-88 |
ON |
CABLE BOX ON |
|
|
P1001-25 |
MODE B |
LX-3 PANEL MODE B SWITCH |
|
|
P1001-90 |
DISPLAY OUT DATA |
CABLE BOX DATA |
|
|
P1001-105 |
DISPLAY OUT CLOCK |
CABLE BOX CLOCK |
|
|
P1001-75 |
DISPLAY OUT ENABLE |
CABLE BOX ENABLE |
|
|
P1001-28 |
+10VDC |
CABLE BOX +10VDC |
|
|
P1001-23 |
SDI 1 |
CABLE BOX
SDI SWITCH
|
SDI 1 = GND
CENTER OFF = 3
|
|
P1001-38 |
SDI 2 |
CABLE BOX
SDI SWITCH
|
SDI 2 = GND |
|
P1001-71,99 |
DC POWER INPUT |
LINAIRE LX 3 PANEL
STBY/OFF SWITCH
|
STBY applies power to unit under test. |
|
P1001-55,57,60 |
POWER GROUNDS
CHASSIS GROUNDS
|
CABLE BOX
GND
|
TWO GND JACKS
PROVIDED ON
BOX
|
TR-421B P1001 CONNECTOR CONTINUED
|
CONNECTOR PIN # |
LINE IDENTIFICATION |
TEST POINTS |
NOTES |
|
P1001-3 |
ALT A1 |
LINAIRE LX 3 PANEL
C-MODE A1 switch
|
|
|
P1001-9 |
ALT A2 |
LINAIRE LX 3 PANEL
C-MODE A2 switch
|
|
|
P1001-26 |
ALT A4 |
LINAIRE LX 3 PANEL
C-MODE A4 switch
|
|
|
P1001-7 |
ALT B1 |
LINAIRE LX 3 PANEL
C-MODE B1 switch
|
|
|
P1001-19 |
ALT B2 |
LINAIRE LX 3 PANEL
C-MODE B2 switch
|
|
|
P1001-34 |
ALT B4 |
LINAIRE LX 3 PANEL
C-MODE B4 switch
|
|
|
P1001-36 |
ALT C1 |
LINAIRE LX 3 PANEL
C-MODE C1 switch
|
|
|
P1001-15 |
ALT C2 |
LINAIRE LX 3 PANEL
C-MODE C2 switch
|
|
|
P1001-30 |
ALT C4 |
LINAIRE LX 3 PANEL
C-MODE C4 switch
|
|
|
P1001-21 |
ALT D4 |
LINAIRE LX 3 PANEL
C-MODE D4 switch
|
|
CD-422A/B P1015
|
CONNECTOR PIN # |
LINE IDENTIFICATION |
TEST POINTS |
NOTES |
|
P1015-15 |
GRAY CODE 1A |
CABLE BOX 1A |
|
|
P1015-7 |
GRAY CODE 1B |
CABLE BOX 1B |
|
|
P10015-17 |
GRAY CODE 2A |
CABLE BOX 2A |
|
|
P1015-16 |
GRAY CODE 2B |
CABLE BOX 2B |
|
|
P1015-22 |
DISPLAY IN DATA #1 |
CABLE BOX DATA |
switched in cable box |
|
P1015-24 |
DISPLAY IN CLOCK #1 |
CABLE BOX CLOCK |
switched in cable box |
|
P1015-20 |
DISPLAY IN ENABLE #1 |
CABLE BOX ENABLE |
switched in cable box |
|
P1015-10 |
POWER SUPPLY ENABLE #1 |
CABLE BOX PS ENABLE |
switched in cable box |
|
P1015-21 |
DISPLAY IN DATA #2 |
CABLE BOX DATA |
switched in cable box |
|
P1015-23 |
DISPLAY IN CLOCK #2 |
CABLE BOX CLOCK |
switched in cable box |
|
P1015-19 |
DISPLAY IN ENABLE #2 |
CABLE BOX ENABLE |
switched in cable box |
|
P1015-1 |
POWER SUPPLY ENABLE #2 |
CABLE BOX ENABLE |
switched in cable box |
|
P1015-2 |
TEST |
CABLE BOX TEST |
|
|
P1015-3 |
STBY |
CABLE BOX STBY |
|
|
P1015-11 |
+10VDC |
CABLE BOX
+10VDC OUT
|
|
|
P1015-4 |
ON |
CABLE BOX ON |
|
|
P1015-5 |
ALT |
CABLE BOX ALT |
|
|
P1015-6 |
VFR |
CABLE BOX VFR |
|
|
P1015-8 |
+28VDC CONTROLLER LAMPS |
CABLE BOX SWITCH
28V LAMPS
|
CONNECTS 28VDC TO
CONTROL LAMPS
|
|
P1015-9 |
+5VDC CONTROLLER LAMPS |
CABLE BOX SWITCH
5V LAMPS
|
CONNECTS 5VDC TO
CONTROL LAMPS
POWER PACK OR CUSTOMER SUPPLIED 5VDC/AC
|
|
P1015-12 |
5VAC/DC/28VDC LCD LIGHTING |
CABLE BOX SWITCH
28V LAMPS/5V LAMPS
|
28 V LAMPS CONNECTS 28VDC
5 V LAMPS CONNECTS
5VDC
|
|