Chapter
1Introduction
Description
The Data Access Radio Transceiver (DART) 200, as shown in Figure 1-1, is a wireless, multipurpose, programmable modem that provides reliable, cost effective mobile and fixed communications over the Cellular Digital Packet Data (CDPD) network. It is a 3-watt, half-duplex device operating on a regulated 12 volts @ 2.5 amps, and contains flash memory to allow software upgrades to be made in the field. The DART 200 differs from its predecessor, the DART 100, in that it has the flash memory to enable field download of software upgrades.
Figure 1-1. DART 200 front view
| | | | Data input | | | | | | | | |
| Power | | | | | | | | | | |
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| RS-232 DB-9 | | | | Power On | |
| connection | | | | | |
| 12VDC* | | Connector | | | Switch | | indicator | | |
| | | | | | | and RSSI | | |
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*Molex Micro-Fit 3.0 4305-0200 - Mates with Molex 43025-0200 on cable.
The modem is lightweight (only 12 ounces), with a small form factor (6.3” x 3.4” x 1.0”). Its rugged construction makes it well suited for industrial and commercial applications of all kinds.
The DART 200 firmware supports either CDPD V1.0 or CDPD V1.1. The present version of the modem comes pre-selected for CDPD V1.1. This selection can be altered by modifying an Status (S)-Register. Refer to Selecting CDPD 1.0 or 1.1 mode of operation, p. 2-8, for details.
