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iSTAR Pro 4U Rack Mount Quick Start Installation Guide

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Cable Distances and Power<br />

Following are maximum cable distances when supplying power to I/8 and R/8 bus<br />

modules from the <strong>4U</strong> <strong>Rack</strong> <strong>Mount</strong>..<br />

I/8 - R/8 Bus Modules<br />

TABLE 13. Power for I/8 and R/8<br />

Power from RM<br />

Connectors to<br />

I/8 or R/8 Wire Size<br />

Max cable<br />

distance (ft.) for<br />

I/8<br />

Max cable<br />

distance (ft.) for<br />

R/8. (With all 8<br />

relays active)<br />

24 AWG 390 225<br />

22 AWG 620 350<br />

20 AWG 985 560<br />

18 AWG 1565 900<br />

31

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