Page 1-5 General Information TQG191-IM
Rev 0: 28 Feb 2019
1.6 EQUIPMENT DESCRIPTIONS
The KTX2 is equipped with a 15-pin sub-D connector (J1) and miniature RF connectors for L-
Band OUT (ANT) and an optional L-Band accessory (LOOP).
The KTX2 can interface with a compatible external GPS source via pins 2 and 13 on connector
P1;
Mutual Suppression is configured via pin 12 on connector P1;
The Weight on Wheels “On Ground” function is enabled by grounding pin 5 on P1;
±14/28 VDC from the aircraft battery buss or avionics Master Switch is connected via pin 8
(positive) and pin 1 (negative/ground) on P1.
Pins 10 and 6 are not normally connected and are reserved for future use.
1.7 TECHNICAL SPECIFICATIONS
Table 1-3 lists the specifications, certification and compliance standards for the KTX2
transponder. Table 1-4 lists the specifications for the transmitter and receiver sections.
Table 1-3: Specifications for the KTX2
304110-XX(XX)-XX(XX) KTX2 Mode S Transponder
ETSO-C112d / TSO-C112d
ETSO-C88a / TSO-C88a
ETSO-C166b / TSO-C166b
RTCA DO-181E /. ED-73E / Level 2els,Class 1
RTCA DO-178C/ ED-12C Level D
RTCA DO-254 / ED80 Level C
RTCA DO-160G / ED-14G
RTCA DO-260B / ED102A Class B1S
CFR 91.225 and CFR 91.227
FCC ID: 2ANFF-KTX2S
Other Standards: SAE AS8003, AC 20-165A
Environmental Compliance:
DO-160F, Cat S Vibration Curve M, Cat A
Operation -20 ºC to +55 ºC (-4 ºF to +131 ºF)
Storage -55 ºC to +85 ºC (-67 ºF to +185 ºF)
Height 2.44 inch [62 mm]
Width 2.48 inch [63 mm]
Length 5.86 inch [149 mm] (body only)
Bezel 2.24 inch [57 mm] diameter (standard 2¼” cutout)
6G Operation
20G Crash Safety
Bonding impedance between aircraft ground and the chassis must
be less than 2.5 milliohms.
9 Vdc to 33 VDC; 0.2A to 1.0A (Illumination 0.02A)
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