Connect Device To Harness Cable; Connect D-Type Socket To End Of Cable; Set Up Usb Adapter - Emerson Rosemount 975 Reference Manual

Initial setup
June 2021
2.4

Connect device to harness cable

Procedure
1. Connect one side of the cable to detector Terminal 13 for RS-485 (+).
2. Connect the other side of the cable to detector Terminal 14 for RS-485 (-).
2.5

Connect D-type socket to end of cable

Procedure
1. Connect RS-485 (+) to Pin 2.
2. Connect RS-485 (-) to Pin 1.
3. Connect RTN to Pin 5.
2.6

Set up USB adapter

CAUTION
If using a different adapter than recommended, check that the D-connector adapter
wiring is similar to the wiring shown (if not, adjust the cable wiring to fit the desired
adapter).
Procedure
1. Unscrew the cover of the USB adapter.
2. Set up jumpers using one of the following options.
3. Close the USB adapter cover.
4. Connect the cable.
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Reference Manual
00809-1500-4975
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