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Eaton Static Transfer Switch 2000A 3-Pole Installation and Operation Manual 164001127—Rev 01
31
Figure 12. Enhanced Contractor Board (Enhanced Remote Customer Interface Board)
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Coonnttrraaccttoorr B
Booaarrdd C
Coonnnneeccttiioonnss
The Enhanced Contractor Board is available as an option. This expanded version allows for additional
connection points of previously discussed interfaces as well as additional high end interface options (
NOTE
Remote relays can accept dry contacts rated up to 2A/250V.
The Contractor Boards have multiple applications in Eaton PDI products and not all connections are supported
on the STS 2000A. The following connections are not currently supported on this product:
•
Inter-Range Instrumentation Group (IRIG) time codes
•
Cell-phone modem connection
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Mooddbbuuss R
RTTU
U C
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The STS has an isolated RS422/RS485 Modbus RTU interface with soft bias provided. Both Contractor Boards
have external connections for RS422/RS485. The Modbus interface can be configured for baud rate, parity, and
address on the
Settings
screen (See
). The address range is 1 to 255 and the address of
each device must be unique. Jumpers on the monitor circuit board select either a 2-wire or 4-wire
configurations for connection.
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