Northern Airborne Technology 251 - Manual (Page 8)

Model 251 Passenger Speaker Amplifier
SM251 Installation and Operation Manual
Section 1 Rev: 1.00 Issue 2 Page 1-5
ENG-FORM: 800-0115.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Model 251-002 Identical to 251 Base Model. Part number 251-002 was created to prevent
a conflict with an existing part number 251 in customer part system.
Model 251-003 Identical to 251 Base Model with the following exceptions:
a) Briefing audio is to output through the right speaker only.
b) The receiver inputs and switches are not available.
c) The briefer switch input is externally grounded, disabling the Stereo
Left input and the Stereo Right input.
Section 1 ends