MicroAir Avionics EC2002, Руководство по установке

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Microair Avionics EC2002 Altitude Encoder
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April 2010 EC2002 Installation Manual 01R12.doc Page 9 of 16
4.0 SERIAL ALTITUDE OUTPUT
The EC2002 will output a formatted ASCII message on an RS232 Data Interface. This message contains the
current pressure altitude with fixed reference to 1013.2milli-bars or 29.92 inches mercury. All formats use 8
data bits, 1 start bit, 1 stop bit & no parity.
Format
Baud
Rate
Message Formatting
Example Message
(5200 feet above MSL)
Garmin AT 1200bps
#AL, space, +/- sign, five altitude digits, T+25, checksum,
carriage return
#AL +25D8[CR]
Magellan 1200bps
$MGL, +/- sign, five altitude digits, T+25, checksum,
carriage return
$MGL+250C[CR]
Northstar,
Garmin 2400bps
ALT, space, five altitude digits, carriage return
ALT 05200[CR]
Trimble, Garmin 9600bps
ALT, space, five altitude digits, carriage return
ALT 05200[CR]
Microair 9600bps
STX, a=, - (if negative), five altitude digits, ETX, check
sum
[STX]a=05200[ETX]9B
The format of the serial altitude data is determined by the position of a set of six switches inside the case. To
access the switches remove the 4 case screws located at the corners of the case, and lift the top cover off the
base. The switches are located near the DB15 connector (refer images).