
SYSTEM INSTALLATION MANUAL
89000016
(5)
The MPI connector can be mated to an off-the-shelf RS-232 to USB converter for configuration
and troubleshooting. Refer to CONFIGURATION, CALIBRATION, AND CHECKOUT, Section
6, for more information on configuring the KGX through the MPI. (6)
(6)
Table 1020 shows the MPI DE-9F connections to Port 3 or Port 5 on the KGX.
Table 1020. MPI Pinout
FEMALE DB-9
PORT 5 (DB-44)
PORT 3 (DB-44)
PIN
SIGNAL
PIN
SIGNAL
PIN
SIGNAL
2
Tx
J1-42
232 TxD5
J1-24
232 TxD3
3
Rx
J1-26
232 RxD5
J1-23
232 RxD3
5
GND
J1-9
SGND4
J1-19
SGND2
(7)
The female DB-9 connector can be connected to a PC using an off-the-shelf RS-232 to
USB converter.
(8)
The KGX also has a USB micro-AB connector which provides an alternate serial Port 5
connection, but is not recommended for use.
(9)
Alternatively, a KGX WiFi module (PN 89000016-002) can be connected to Port 3 or Port 5.
The MPI functionality can then be accessed wirelessly using the ADS-B MPI application.
NOTE:
When Port 3 and Port 5 are configured and interfaced to other equipment (KGX
control panel or display), the connections to the configured device must be
temporarily disconnected to use the port for MPI purposes. If the KGX control
panel is disconnected, the Remote On pin (J1-32 on the KGX) must be grounded
to turn on the KGX.
(10) Refer to CONFIGURATION, CALIBRATION, AND CHECKOUT for more information on MPI
usage, installation configuration, and troubleshooting.
11. KGX Control Panel Electrical Connections
A.
KGX Control Panel Connection - Pinout
(1)
The connection from the KGX 150/130 transceivers and receivers to the KGX control panel
uses a minimum of six signal lines:
• TMAP pair
• Power and Ground pair
• Remote On discrete line plus associated ground line.
(2)
Refer to Table 1021 for the KGX control panel connections (DB-9).
Table 1021. KGX Control Panel Connections (DB-9)
Pin
Signal
Electrical
I/O
Description
1
GND
Ground
GND
Signal common
2
TMAPA
RS-485
I/O
KGX control panel serial bus (+)
3
TMAPB
RS-485
I/O
KGX control panel serial bus (-)
4
ALT_OUT
RS-232
O
Pressure altitude out
5
Reserved
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EFFECTIVITY
ALL
Page 1018
22 Dec 2016
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