Emerson XEV EX48 Instruction Sheet page 14

Superheat controller
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17.3 MODBUS Termination Box
Because the XEV device has no on-board means of
termination, use the MODBUS termination block (P/N 535-
2711) for termination that can be wired to the end of the cable
segment using the three pin connector. Wire the two signal
wires to the outside terminals, and connect the shield to
pin 16, keeping the exposed shield wire length as short as
possible (3 inches ideal maximum length).
Figure 17.8 - MODBUS Termination Block (P/N 535-2711)
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