Temperature Probe Interface (DTPI) Specifications

Picture of DTPI

The DTPI is a temperature probe interface that can handle up to 4 “one-wire” DS18B20 or DS18S20 temperature probes (sold separately). The probes can measure temperatures ranging from -55° to 100° Celsius. The interface itself is designed to operate between 0° and 70° Celsius.

Temperature probes are available in three cable lengths: 1m, 5m and 15m with pigtail connections, but the DTPI has been successfully tested with cable lengths of up to 30 meters. The DTPI also accepts a standard 1/8” stereo plug for convenient probe connection. A 9V “wall wart” type AC/DC adapter is provided with the unit.

When a temperature probe is connected to either the terminal block or the corresponding 1/8” stereo jack, the associated front-panel LED display shows the temperature measured by the probe. The temperature can be displayed in degrees Celsius or Fahrenheit. Readings can also be retrieved remotely through simple SNMP GET commands sent to the onboard SNMP agent. The MIB file is available for download at dex.davicom.com – Documents – Software & Firmware.

There is also a DTPI Toolbox application available for download from the website. Instructions to use the DTPI Toolbox are given in this article.

Electrical Specifications

Operating Voltage +5 to +9 VDC
Current consumption 250 mA @ 9 VDC

Certification: EMC: FCC Part 15 (Class A)

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