TOPAX DE Operation & Maintenance Instructions
TOPAX DE Operation & Maintenance Instructions
TOPAX DE Operation & Maintenance Instructions
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To activate all resistances jumpers have to be attached to the <strong>TOPAX</strong> <strong>DE</strong> (see following<br />
illustration). For this purpose the device front has to be unscrewed and flipped up.<br />
CAUTION!<br />
WARNING!<br />
CAUTION!<br />
You must only insert the 120 ohm Pull-up/Pull-down resistances into one <strong>TOPAX</strong><br />
<strong>DE</strong>, the last one in the network. (No resistances are inserted in its delivered<br />
state).<br />
WARNING!<br />
Before opening switch the device without fail to zero-potential!!<br />
120 ohm Pull-up Pull-down resistance note jumper on the bridges<br />
not installed (delivered state) 2, 4 and 6 (right and left)<br />
installed (on the last device) 2, 3 and 5 (right and left)<br />
View of the display board for the jumper field for the Pull-up/Pull-down resistances (shown<br />
in the delivered state):<br />
Connector<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
left<br />
right<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
42 | Operating Manual <strong>TOPAX</strong> <strong>DE</strong> | Data readout
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