NorthStar 1200-02-01, Installation Manual

Page: 6 / 56

Section One—Technical Information
PAGE 2 M3 GPS INSTALLATION MANUAL Revision D
The M3 may be interfaced to an altitude encoder, either by connecting the
individual encoder wires directly to the M3 or by using a Northstar 2006
Altitude Serializer. Altitude information enhances GPS accuracy and
availability. Interfacing an encoder is recommended for all installations
and is required for IFR-approved installations. Instructions for installing
the serializer are in the specifications in the
Northstar 2006 Altitude Seri-
alizer Installation Manual (Part No. GM435), which is included with the
serializer.
Technical specifications
Northstar M3 GPS
navigator ( Part No.
1200-02-01 or
1200-03-01)
Physical characteristics
Weight (with mounting tray) . . . . . . . 4.2 pounds
Dimensions:
Height—2.0 inches
Width—6.25 inches
Depth (from rear of bezel to rear of tray)—11.75 inches
Cooling. . . . . . . . . . . . . . . . . . . . . . . . Forced air cooling is required for all instal-
lations
Electrical requirements
Voltage . . . . . . . . . . . . . . . . . . . . . . . . 10 to 35 VDC negative ground
Current . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A nominal at 14 VDC
0.85 A nominal at 28 VDC
Power . . . . . . . . . . . . . . . . . . . . . . . . . 35 watts nominal
(25 watts nominal for P/N 1200-02)
Interfaces to external equipment
CDI Loads . . . . . . . . . . . . . . . . . . . . . Up to five 1,000-Ohm loads
Full Scale
. . . . . . . . . . . . . . . . . .±
150 mV (maximum deviation output
±
600
mV)
Valid Flag Loads . . . . . . . . . . . . . . . . Up to three 1,000-Ohm loads
260
µ
A for flag out-of-view
Superflag . . . . . . . . . . . . . . . . . . . . . .
>
18 VDC at 40 mA maximum
To/From Pointer . . . . . . . . . . . . . . . . . Up to three 200-Ohm loads,
±
60 mV
nominal to pull pointer
(
±
120 mV option available—
contact factory)
NOTE:
All installations require use of Northstar fans (Part No. 1090
for 14 volts or Part No. 1091 for 28 volts) or equivalent fans
providing at least 2 CFM of cooling air. To ensure adequate
air flow to unit, up to three feet of ScatTubing is acceptable.