Control Installation Chore-Tronics® 2 Control
84
MT1843B
Expansion Board Installation/Wiring
If it is desired to have more than 12 analog inputs and/or 8 digital inputs, then an
Expansion Board(s) is needed to connect the inputs. There can be a maximum of 7
Expansion Boards added to the Chore-Tronics
®
2 Main Box. These seven boards can
consist of Analog Expansion Board, Digital Expansion Boards, or both.
To add an Expansion Board, an Expansion Bus (I2C board) kit part no. 49667 must
first be installed. Attach the Expansion Bus to the Back Plate using the hardware
provided using existing holes as shown in Figure 98 below. Slide an Expansion
Board into one of the Expansion Bus connectors. Attach the Expansion Board to the
Back Plate using the hardware provided. Connect the Expansion Bus to the I/O Board
with the Flat Cable provided as shown. Note: Remove the I/O Board and run the Flat
Cable underneath it to keep it out of the way as shown.
Item Description
1 Expansion Bus
2 Flat Cable End (I/O Board End)
3 Flat Cable End (Expansion Bus end)
4 Expansion Board
1
2
4
Figure 98. Expansion Boards
3