Operating Altitude; Accuracy; Serial Port Altitude Data Resolution; Mechanical Characteristics - Trans-Cal SSD120-A-RS Series Owners & Installation Manual

1.3 General Specifications(continued)

1.3.1 Operating Altitude:

Model SSD120-30A( )-RS
Model SSD120-35A( )-RS
Model SSD120-42A( )-RS

1.3.2 Accuracy:

Digitizer accuracy is "50 feet from -1000 to +30,000 feet, and "75 feet
from 30,100 to +42,000 feet, when measured from the altitude transition
points of the digital code and referenced to 29.92 In. Hg. (1013 MB.)

1.3.3 Serial Port Altitude Data Resolution:

The default resolution of the altitude digitizer serial data is 100 feet on
both TxD1 and the RS485 port. To enable 10 foot resolution, connect pin
2 of the 15 pin D-Subminiature connector to ground (see Table V & VI.)
The serial port resolution may also be configured via software, see '4.6.

1.3.4 Mechanical Characteristics:

Model Number
Model SSD120-30A( )-RS
Model SSD120-35A( )-RS
Model SSD120-42A( )-RS

1.3.5 Environmental:

All model SSD120-(XX)A( )-RS digitizers have been designed and tested
to meet the requirements of TSO-C88a, in accordance with RTCA
Document DO160b, dated July 1984 (specifics provided upon request).

1.3.6 Over Range:

The SSD120-(XX)A( )-RS series of altitude digitizers will not be
damaged when operated beyond their specified maximum altitude up to
100,000 feet MSL, or over pressured to 18 psi max.
-1000 to +30,000 feet.
-1000 to +35,000 feet.
-1000 to +42,000 feet.
Dimensions
See Outline Drawing
See Outline Drawing
See Outline Drawing
-5-
Weight
10 oz.
10 oz.
10 oz.