Specifications

I
2
C Input/Output Boards
The Maxum II Modular Oven supports three different types of I/O circuit
boards that communicate via the I
2
C bus. The available I
2
C I/O boards
are as follows:
Description
• AIO - Eight Analog Input channels; Eight Analog Output
channels; Two Digital Input channels
• DIO - Eight Digital Output channels; Six Digital Input channels
• ADIO - Four Analog Inputs; Four Digital Inputs; Four Analog
Outputs; Four Digital Outputs
The I
2
C I/O boards are designed to plug into Maxum II Modular Oven I/O
Cage installed on the inside ceiling of the electronics enclosure as
shown below
Figure 2-7: I
2
C I/O Board Cage
The following characteristics are the same for all configurations of the I
2
C
I/O boards.
I/O Boards General
Characteristics
Three status LEDs have been included on each I2C I/O board. These
LEDs are visible on the top front of the board. The LEDs follow the
Maxum standard as follows:
Status LEDs
• LED1 (Fault) - When lit, the bottom (red) LED indicates that the
board has a fault.
• LED2 (Warn) - When lit, the middle (yellow) LED indicates that
there is a warning status for the board.
• LED3 (Norm) - The bottom (green) LED indicates that the board
is powered when lit. When this is the only LED illuminated, then
the board is operating normally.
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