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snap into slots on the inside of the housing
cover.
To remove the controller cover:
1.
Place your fingernails under the two cover
lift tabs (Figure 1) on the sides of the housing
cover and gently pry the top of the cover away
from the base to release the cover from the two
upper latches.
2.
Pivot the top of the cover further to release it
from the lower two latches.
3.
Replace the cover by placing it squarely over
the base, and then gently and evenly push the
cover on to the latches until they snap into the
latched position.
Cover Removed EOL switch
Figure 11: IOM17 or IOM27 with cover removed
showing EOL switch location
Setting the End-of-Line (EOL) switch
Each controller has an EOL switch, which, when set
to ON, sets the controller as a terminating device on
the bus. See Figure 11 for the EOL switch location.
The default EOL switch position is Off.
18
IOM1711 and IOM2711 Input/Output Module Installation Guide
Figure 12: End-of-Line switch positions
To set the EOL switch on a controller:
1.
Determine the physical location of the
controller on the SA or FC bus.
2.
Determine if the controller must be set as a
terminating device on the bus.
Note: The EOL termination rules for
SA buses and FC buses are different.
Refer to the MS/TP Communications Bus
Technical Bulletin (LIT-12011034) for detailed
information regarding EOL termination
rules and EOL switch settings on SA and FC
buses.
3.
If the controller is a terminating device on
the FC bus, set the EOL switch to ON. If the
controller is not a terminating device on the
bus, set the EOL switch to Off.
When a controller is connected to power
with its EOL switch set to ON, the amber
EOL LED on the controller cover is lit.
Commissioning the Controllers
You commission controllers with the Controller
Configuration Tool (CCT) software, using either
a Wireless Commissioning Converter, a ZigBee
wireless dongle, through MAP 4.2+/BACnet Router
Mobile Access Portal (MAP) Gateway at version
4.2 or above), or in BACnet
connected to an NAE or NCE. Refer to the Controller
Tool Help (LIT-12011147) for detailed information on
commissioning controllers.
router mode when
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