User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
34−43−23
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Page 4−51
15 Dec 2005
Table 4−8. XS−950 Data Link Transponder Interface Descriptions (cont)
Connector Pin
Designation
Functional Description
J1−20, 22 115 V ac POWER OUTPUT: (J1−20 [H], J1−22 [C])
These power output pins provide the 115 V ac operating power for the data loader.
NOTE: Only the 115 V ac version transponders provide this output. If a 28 V dc version
transponder is installed, either the data loader must be able to operate from 28
V dc or the data loader 115 V ac input power must be connected to a source
external to the transponder.
The 115 V ac (H) and 115 V ac (C) should be shielded or twisted and shielded with an
insulating jacket over the shield. The shield should be connected to chassis ground (pin
21).
J1−21 CHASSIS GROUND:
Connect 115 V ac power shields to this pin.
J1−37, 38 28 V dc POWER OUTPUT: (J1−37 [HI], J1−38 [LO])
These power output pins provide the 28 V dc operating power for the data loader. These
pins are used only if the data loader operates from 28 V dc.
J1−40
J1−41
J1−48,49
RS−232 PDL INPUT:
RS−232 PDL OUTPUT
LOGIC COMMON (Gnd)
These pins would be connected to an RS−232 Serial Port as follows. Most RS−232
Serial Ports use either a 9 pin RS−232 (COM) connector or a 25 pin RS−232 (COM)
connector.
ARINC 615 PC COM1 OR COM2 PC COM1 OR COM2
CONNECTOR PIN 9 PIN CONNECTOR 25 PIN CONNECTOR
40 PC TX (pin 3) PC TX (pin 2)
41 PC RX (pin 2) PC RX (pin 3)
48 or 49 Ground (pin 5) Ground (pin 7)
NOTE: When using a RS−232 interface, transponder pin J1−18 (Link A) and pin J1−19
(Link B) must be connected (tied together) to do a software upload. The pins
should be open to verify the software status.
J1−50
J1−51
J1−52
J1−53
PDL FUNCTION DISCRETE #1 INPUT:
PDL FUNCTION DISCRETE #2 INPUT:
PDL FUNCTION DISCRETE #3 INPUT:
PDL FUNCTION DISCRETE #4 INPUT:
These pins are used to receive discrete functional information from the data loader.
These pins should be connected to the PDL cable interface.