MM32BRK

Medialab Documentation

MM32BRK (REV-1)

The MM32BRK is an analog breakout board for the Diamond MM-32 16-bit Analog I/O PC-104 interface module.

Identification

Rev 1 is a yellow colored (AP Circuits) PCB with silver traces and no silk-screen. In solder find the text label "medialab/mm32brk.pcb REV1 022105"

Connectors

• MM32 ribbon cable (2)
• Power (1)
• Analog Inputs (16)
• Analog Outputs (4)

Known Problems

• DAC output headers polarity opposite the power pins
• Although the input connectors are laid out in an orderly grid, the last two inputs (IN14 and IN15) are swapped in the array.
• Some power supply decoupling caps on pg3 of SCH have the wrong orientation, populated on PCBs correctly

LED Indicators

• 4 groups of LEDs indicate the presence of power and the state of the fuses.
• Normally the LEDs on either side of the fuse should be dark – when a fuse blows these LEDs should be visible.
• LEDs adjacent to the power connectors indicate the presence of power

Assembly Variations

FUSES : the fuses socket may be populated with a shorting wire, a fast blow fuse, or a resistors which will act like a slow blow fuse.