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A.1 Selecting and Installing a Field Wiring Terminal
Connections to the I/O cards are made via a ribbon cable connector or optional field wiring
terminals that are either pluggable or have screw terminals. Three different Field Wiring
Terminals (FWTs) are available. Table A-1 lists the I/O cards and the Rabbit part numbers
for the corresponding FWTs.
Table A-1. Guide to FWT Selection
Rabbit Part Number
Pluggable Terminals
Screw Terminals
FWT Description
I/O Cards
FWT27
FWT18
FWT18R
Digital I/O (SR9200 series)
Relay (SR9510)
A/D Converter (SR9300 series)
D/A Converter (SR9400 series)
Relay (SR9500)
101-0420
101-0421
101-0422
101-0514
101-0515
101-0516
Before you can install the FWT you selected
for your I/O card, you must remove the tabs
from the connector on the I/O card. To do so,
move the tab inwards as far as possible, as
shown in Figure A-1. Then insert a screw-
driver into the space below the tab on the
side of the connector and gently nudge the
tab up and out. If you are careful, the tab will
remain intact to be saved and snapped back
in place should you need to use a ribbon
cable connector in the future.
Plug the FWT connector into the connector
on the I/O card. Be sure to position the plug-
1
2
Figure A-1. Remove Tabs from Connector
on I/O Card
gable or screw connectors so that the header
pins on the printed circuit board are towards
you, as shown in Figure A-2. Position the
mylar insulator above the FWT as shown in
Figure A-2 to protect the header pins on the
printed circuit board, and secure the FWT
Pin 1
Mylar insulator
Pin 1
using the two 4-40 × ? screws supplied.
them. Note that the mylar insulator will be
bowed slightly once the screws are in place.
128
Figure A-2. Secure FWT to I/O Card
Smart Star (SR9000)
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