Diamond Power Products MM-48-AT - Manual (Page 5)

Diamond-MM-48-AT User Manual V1.01 Page 5
3. I/O HEADER PINOUT AND PIN DESCRIPTION
Diamond-MM-48-AT provides two I/O headers. J3, located on the right side of the board, is a
40-pin header that includes the analog in, analog out, and logic-level digital I/O features. Pin
1 is the upper left pin and is marked on the board. J4, located on the left side of the baord, is
a 34-pin header with the relay and optocoupler features.
J3: Analog and Digital I/O
Vin 0 1 2 Vin 1
Vin 2 3 4 Vin 3
Vin 4 5 6 Vin 5
Vin 6 7 8 Vin 7
Vin 8 9 10 Vin 9
Vin 10 11 12 Vin 11
Vin 12 13 14 Vin 13
Vin 14 15 16 Vin 15
A/D Gnd 17 18 A/D Gnd
Vout 0 19 20 Vout 1
Vout 2 21 22 Vout 3
Vout 4 23 24 Vout 5
Vout 6 25 26 Vout 7
D/A Gnd 27 28 Dgnd
Extclk 29 30 Gate 0
Out 0 31 32 Clk 1
Gate 1 33 34 Out 1
DIO 0 35 36 DIO 1
DIO 2 37 38 DIO 3
+5V 39 40 Dgnd
Signal Name Definition
Vin 0-15 Analog input channels 0 to 15; all inputs are single-ended
Vout 0-7 Analog output channels 0 – 7
DIO 0-3 Digital I/O port, TTL / CMOS compatible; programmable direction
Extclk External A/D trigger input
Gate 0 Counter 0 gate input
Out 0 Counter 0 output
Clk 1 Counter 1 clock input
Gate 1 Counter 1 gate input
Out 1 Counter 1 output
+5V Connected to PC/104 bus power supply
A/D Gnd Analog ground for analog inputs
D/A Gnd Analog ground for analog outputs
Dgnd Digital ground
Note: all grounds are electrically connected. The different pins are
intended to reduce noise by separating the current paths on the
board.