Emerson Rosemount 5900S Series, Reference Manual

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Figure 3-28: Terminal Compartment 2-in-1 Version
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A. Test terminals
B. Ground terminals, internal
C. Jumpers between X3 and X4
D. Two tankbuses
E. Single tankbus
FB. Field Bus
When using two separate tankbuses, connect X1 to Tankbus 1 and X4 to Tankbus 2.
Connect to X1 when using a single tankbus, and jumpers between X3 and X4.
Table 3-11: Terminal Block Connections for the Rosemount 5900S with Two
Tankbuses
Connection Two-in-One / Two tankbuses
X1: Primary Tankbus in Intrinsically safe Tankbus input for level gauge 1, power and
communication
X2: Primary Terminate
on Termination for primary tankbus. The integrated line terminator is
connected over the Tankbus when a jumper is placed in the terminal
block.
X3: Primary Tankbus
out Primary Tankbus output connected to X1 for optional daisy-chain
connection to other devices
X4: Secondary Tankbus
in Intrinsically safe Tankbus input for level gauge 2, power and
communication
Test terminals Test terminals for temporary connection of a field communicator
Installation Reference Manual
September 2019 00809-0100-5900
88 Reference Manual