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RS-485 Interface Bus
When the UO-4S is used as part of an Orion integrated security system:
1.
Connect the terminals RS-485A and RS-485B to the lines A and B of the RS-485 interface bus
respectively.
2.
Connect the “0
В
” circuit of the panel to the similar circuit of the preceding and the subsequent
devices on the RS-485 trunk (if the devices are powered by the same power supply this doesn’t have to be
done).
3.
If the panel is neither the last nor the first device on the RS-485 interface bus then remove the
XT3 jumper which is situated closely to A and B contacts on the panel PCB.
Figure 5. UO-4S Connection Diagram
Figure 6. Connecting Alarm Loops and Operating Loop
