Nat SM245 - Physical Specifications; Environmental Specifications; Unit Nomenclature

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