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Home>Telemetry
Telemetry - DX-Bus I/O Cards DX2202 and DX4404 Field I/O Cards - An arsenal of off-the-shelf I/O
cards communicate to 10 miles over a twisted-pair cable - or to virtually anywhere
on optical fibers, phone lines or radio - at a selectable speed: 19.2k, 38.4k,
57.6k or 115.2k Baud. The 3x4" DX2202 has two analog inputs (4-20ma, 12-bit
resolution), two digital inputs (NO/NC dry contacts) and two digital outputs
(SPDT relays with 110V-5A contacts). The 5x5" DX4404 has 4AI, 4DI and 4DO, same specs. Other cards are available
with various I/O count combinations, to 8AI, 8DI, 2AI and 8DO. All of these
high quality I/O cards are transient protected for 1500W pulse rating. The "DX"
communication bus and protocol are compatible with Rel-Tek's high security PC-based
Millennia-DX monitoring and data logging equipment. These quality products combine
performance, safety and economy, essential to your most important operations.
project requirements. A serial port on the computer is converted to the DX-Bus long distance telemetry
using the DX-Com module. Selectable data rates can range from 1200 baud to 19.2K
baud, although systems using the DX4404C turbo card range from 19.2K baud to
115.2K baud, for exceptionally fast data recovery. Distances can be 10 miles
or across the plant, using inexpensive 14-18 AWG twisted pair, unshielded cable.
A variety of field I/O cards can be mixed and matched, and parallel connected
anywhere along the line for interfacing with analog inputs (AI), digital inputs
(DI), analog outputs (AO) and digital outputs (DO). US-manufactured and serviced.
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