SSD120-35C Altitude Encoder

TRANS-CAL INDUSTRIES

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EDMO # SSD120-35C

MFR Part # SSD120-35C-RS232

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Product Description

The SSD120-35C-RS232 (EDMO# SSD120-35C) is a rugged and reliable altitude digitizer for applications where size, weight, and economy are critical. This encoder accurately measures air pressure and converts this measurement into the ICAO parallel data as set forth in the International Standard for Pressure Altitude Transmission.

Incorporating one ICAO gray code port and two RS232 serial altitude data outputs, this encoder is a simple and robust addition to any avionics installation requiring pressure altitude information for multiple aircraft systems. The serial data protocol is commonly used to provide pressure altitude data to ADS-B, GPS, auto-pilots, transponders and other navigation devices. Six serial data protocols are available. Data protocol is selected through internal shunts or via software set-up. Installation hardware includes: quick release mounting tray, mating electrical connector and backshell, 1/8-27NPT to tube and plug, and installation manual.

When used with the Nano Adapter Plate (EDMO# 103059-B) Revision B, the SSD120 altitude encoder can be installed on mounting trays from ACK. Nano Adapter Plate sold separately. https://www.edmo.com/product/103059-B/nano-adapter-plate-for-ack-mount-trays-revision-b-103059-b

Features

Small, light, and low power consumption
1/8-27NPT static port inlet
ADS-B Compliant
One ICAO pressure altitude gray code output
Two RS232 serial altitude data outputs
Resolution of the serial altitude data may be set to 100 feet or 10 feet through internal shunts
Altitude range from -1,000 to 35,000 feet
FAA TSO-C88a and ETSO-C88a approved
Tested and conforms to MIL-STD-704E and RTCA DO-160E

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Specifications

Weight:

4.3 oz (5.3 oz with tray and knob)
Operating Voltage:

12 - 30 VDC
Operating Current:

0.25 amps @14 VDC, 0.27 amps @28 VDC
Operating Temperature:

-20°C to 55°C (-4°F to 158°F)
Storage Temperature:

-65°C to 85°C (-85°F to 185°F)
Warm-up Time:

0 sec @20°C (68°F)
Operating Altitude:

1,000 to 35,000 ft
Certifications:

FAA TSO C88a, EASA TSO C88a, RTCA DO-178 software, RTCA-DO-160E D1BAB[(SM (UF)]XXXXXXZBBB(BC)TTBXXXAX