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Figure 5-2: Power and Reference wiring for a Remote RPT-485
NOTES:
1) A remote CAB-3 containing an RPT-485 must be connected to the SLC loop via an MMX and MPS-TR for
detection of troubles. Refer to the MPS-TR Product Installation Drawing, Document 15331 for specific
terminal connections.
2) Most EIA-485 devices and sources manufactured by Notifier are not isolated. When making reference
connections to non-isolated EIA-485 devices powered by separate power supplies, care must be taken to
ensure that only one power supply has Earth Fault detection enabled within a group of power supplies
sharing the same reference connection.
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Isolated
Document 15640 Rev B1 08/13/97 P/N 15640:B1
Earth Fault
Disabled
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