Honeywell ControlEdge 900 platform Hardware Planning And Installation Manual page 74

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4. Install EPM or CPM as required.
Install EPM:
l
a. Set the EPM address and network topology for the I/O rack
using the rotary switches, as shown below.
TIP: Set the 10x and 1x switches to the two digit
address ranging from 01 to 99. The lower switch (10x)
is used to set the tens digit and the upper switch (1x)
sets the ones digit. A small slotted screwdriver works
well; avoid pencils. Set the network topology using the
100x switch. 3 is for Ring network topology and 4 is for
Star network topology.
b. Insert EPM to the right of the power supply, and secure it in
place with the two captured screws in the faceplate, as shown
below.