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3-8 MODEL <strong>22</strong> SERIES <strong>II</strong> OPERATIONS AND MAINTENANCE MANUAL<br />
Accu-Sort Systems<br />
RS485 MULTIDROP (2 WIRE)<br />
Use the following drawing as a guide when you want to connect your <strong>Model</strong> <strong>22</strong><br />
<strong>Series</strong> <strong>II</strong> to a device that is using RS485 Multidrop serial<br />
Communication:<br />
NOTE: All connectors are shown from the soldering side.<br />
<strong>Model</strong> <strong>22</strong> (J1 or J3)<br />
1<br />
6<br />
15<br />
End Of The Line<br />
1 GND<br />
SD+/RD+<br />
SD-/RD-<br />
6<br />
8<br />
1<br />
6<br />
8<br />
1<br />
6<br />
8<br />
GND<br />
SD+/RD+<br />
SD-/RD-<br />
GND<br />
SD+/RD+<br />
SD-/RD-<br />
<strong>22</strong>0<br />
Termination<br />
NOTE: RS485 allows for communication across the same lines<br />
Termination resistors can be placed inside the connector strain relief.<br />
The termination resistor value is <strong>22</strong>0 OHM 1/4 watt.<br />
The transmit-receive lines on both sides must be terminated.<br />
Cable type: Alpha #5473C (or equivalent)<br />
<strong>22</strong>0<br />
Termination<br />
(Polling Required)<br />
HOST<br />
End Of The Line<br />
S. GND<br />
SD+/RD+<br />
SD-/RD-
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