2 physical specifications, 3 environmental specifications, 5 unit nomenclature – Northern Airborne Technology 245 User Manual
Page 12
Model 245 Speaker Amplifier Manual
SM245 Rev. 4.10
Page 1-2
Jun 23, 2005
ENG-FORM: 800-0108.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
1.4.2 Physical
Specifications
Height
2.12" (53.9 mm) max
Depth (excl. connectors) 3.00" (76.2 mm) max, excluding flanges
3.85" (97.8 mm) max, including flanges
Width
3.60" (91.4 mm) max
Weight
0.60 lbs (0.3 Kg) max
1.4.3 Environmental
Specifications
Operating Temperature
-55
o
to +70
o
C
Operating Altitude
70,000 feet
Qualification
ENV. CAT. [A2F2]-BA(CL)XXXXXXZ(BZ)AAATZ(XXC2)XX
Tested under environmental conditions and test procedures in accordance
with RTCA DO-160C and qualified to the categories listed in the
Environmental Qualification Form in Section 2 of this manual.
TSO Compliance:
TSO-C50c, RTCA DO-214
1.5 Unit
Nomenclature
Any derivatives of the Model 245 base unit are represented as Model 245-xxx, where xxx
represents the specific derivative. All differences between the base unit and the -001 and
-002 derivatives are shown below.
Model Specification
Differences
245 Base Model
Standard Input (7.75 Vrms into 600 ohms).
245-001
Input is 1.0 Vrms into 1800 ohms.
245-002
Input is 0.25 Vrms into 1600 ohms.
End of section 1