Sandia Aerospace STX 165 Installation Manual - Manual (Page 6)

306100-00
1.3.3 Operational Characteristics
1.3.3.1 STX 165 Panel Mount
Operational Voltage: 11-32Vdc
Current: All Current readings are with the encoder heater on
Aircraft Power PRF Squawk Code Watts Current
14Vdc 500 7777 13.16 .94A
14Vdc 500 1200 11.49 .82A
28Vdc 500 7777 21.14 .76A
28Vdc 500 1200 19.68 .70A
Operating Temp: -20
o
C - +55
o
C
Altitude: -1000’ - +35,000’
1.3.3.2 STX 165R Remote Unit
Operational Voltage 11-32Vdc
Current:
Aircraft Power PRF Squawk Code Watts Current
14Vdc 500 7777 5.06 .36A
14Vdc 500 1200 3.65 .26A
28Vdc 500 7777 5.12 .18A
28Vdc 500 1200 3.66 .13A
Operating Temp: -20
o
C - +55
o
C
Altitude: -1000’ - +35,000’
1.3.3.3 STP 78 OAT Probe (Optional)
TSO C88a, C106
Operating Temp: -55
o
C - +70
o
C
Altitude: 35,000’
1.3.4 Certifi cation
TSO: C74d (transponder)
C88b (encoder) STX 165 panel mount only
Software: DO-178B Level C
Environmental: DO-160F
STX 165 [(A4C4)X]CAB(SM)XXXXXXZBAB[BC][TT]M[XXXXX]XXXX
STX165R [(A4C4)X]CAB(SM)XXXXXXZBAB[BC][TT]M[XXXXX]XXXX
FCC ID YJL-DAF-JDX
“The conditions and test required for TSO approval of this article are minimum performance stan-
dards. It is the responsibility of those desiring to install the article either on or within a specifi c type
or class of aircraft to demonstrate that the aircraft installation conditions are within the TSO standards.
The article may be installed only if installation of the article is approved by the Administrator.
5
Encoder:
Altitude: -1000’ to +35,000’
Output: RS 232 (9600 or 1200 Baud, Installation Selectable)
Resolution RS 232 10’
Grey Code 100’