J1 CONNECTOR PINOUT DIAGRAMS:

• DT2821-x and DT2825
• DT2823 and DT2827
• DT2828

                DT2821-x / DT2825 J1
                     .--------.
                Ch0  | 1    2 |  Ch8 (Ch0 Lo)
                Ch1  | 3    4 |  Ch9 (Ch1 Lo)
                Ch2  | 5    6 |  Ch10 (Ch2 Lo)
                Ch3  | 7    8 |  Ch11 (Ch3 Lo)
                Ch4  | 9   10 |  Ch12 (Ch4 Lo)
                Ch5  | 11  12 |  Ch13 (Ch5 Lo)
                Ch6  | 13  14 |  Ch14 (Ch6 Lo)
                Ch7  | 15  16 |  Ch15 (Ch7 Lo)
         Analog Gnd  | 17  18 |  Amp Low (see note!)
          + 15V Out  | 19  20 |  - 15V Out
          Power Gnd  | 21  22 |  DAC 0 Out
          DAC 0 Gnd  | 23  24 |  DAC 1 Out
          DAC 1 Gnd  | 25  26 |  DIO Gnd
            DIO Gnd  | 27  28 |  DIO Port 0, Bit 0
  DIO Port 0, Bit 1  | 29  30 |  DIO Port 0, Bit 2
  DIO Port 0, Bit 3  | 31  32 |  DIO Gnd
  DIO Port 0, Bit 4  | 33  34 |  DIO Port 0, Bit 5
  DIO Port 0, Bit 6  | 35  36 |  DIO Port 0, Bit 7
            DIO Gnd  | 37  38 |  DIO Port 1, Bit 0
  DIO Port 1, Bit 2  | 39  40 |  DIO Port 1, Bit 2
  DIO Port 1, Bit 2  | 41  42 |  DIO Gnd
  DIO Port 1, Bit 2  | 43  44 |  DIO Port 1, Bit 2
  DIO Port 1, Bit 2  | 45  46 |  DIO Port 1, Bit 2
            DIO Gnd  | 47  48 |  DIO Gnd
 (External Trig In)  | 49  50 |  External Clock In
                     `--------'

NOTE: Pin 18 (Amp Low) MUST be connected, either to Analog Gnd or another common reference point with a low impedance to ground (such as for pseudo-differential operation).

NOTE: Data Translation does not recommend using the +/- 15 V pins to power external circuitry, due to limited current availability.

                 DT2823 / DT2827 J1 
                     .--------.
                Ch0  | 1    2 |  Ch0 Lo
                N/C  | 3    4 |  N/C
                Ch1  | 5    6 |  Ch1 Lo
                N/C  | 7    8 |  N/C
                Ch2  | 9   10 |  Ch2 Lo
                N/C  | 11  12 |  N/C
                Ch3  | 13  14 |  Ch3 Lo
                N/C  | 15  16 |  N/C
         Analog Gnd  | 17  18 |  N/C
          + 15V Out  | 19  20 |  - 15V Out
          Power Gnd  | 21  22 |  DAC 0 Out
          DAC 0 Gnd  | 23  24 |  DAC 1 Out
          DAC 1 Gnd  | 25  26 |  DIO Gnd
            DIO Gnd  | 27  28 |  DIO Port 0, Bit 0
  DIO Port 0, Bit 1  | 29  30 |  DIO Port 0, Bit 2
  DIO Port 0, Bit 3  | 31  32 |  DIO Gnd
  DIO Port 0, Bit 4  | 33  34 |  DIO Port 0, Bit 5
  DIO Port 0, Bit 6  | 35  36 |  DIO Port 0, Bit 7
            DIO Gnd  | 37  38 |  DIO Port 1, Bit 0
  DIO Port 1, Bit 2  | 39  40 |  DIO Port 1, Bit 2
  DIO Port 1, Bit 2  | 41  42 |  DIO Gnd
  DIO Port 1, Bit 2  | 43  44 |  DIO Port 1, Bit 2
  DIO Port 1, Bit 2  | 45  46 |  DIO Port 1, Bit 2
            DIO Gnd  | 47  48 |  DIO Gnd
 (External Trig In)  | 49  50 |  External Clock In
                     `--------'

NOTE: Data Translation does not recommend using the +/- 15 V pins to power external circuitry, due to limited current availability.

                      DT2828 J1 
                     .--------.
                Ch0  | 1    2 |  Analog Gnd
                N/C  | 3    4 |  N/C
                Ch1  | 5    6 |  Analog Gnd
                N/C  | 7    8 |  N/C
                Ch2  | 9   10 |  Analog Gnd
                N/C  | 11  12 |  N/C
                Ch3  | 13  14 |  Analog Gnd
                N/C  | 15  16 |  N/C
         Analog Gnd  | 17  18 |  N/C
          + 15V Out  | 19  20 |  - 15V Out
          Power Gnd  | 21  22 |  DAC 0 Out
          DAC 0 Gnd  | 23  24 |  DAC 1 Out
          DAC 1 Gnd  | 25  26 |  DIO Gnd
            DIO Gnd  | 27  28 |  DIO Port 0, Bit 0
  DIO Port 0, Bit 1  | 29  30 |  DIO Port 0, Bit 2
  DIO Port 0, Bit 3  | 31  32 |  DIO Gnd
  DIO Port 0, Bit 4  | 33  34 |  DIO Port 0, Bit 5
  DIO Port 0, Bit 6  | 35  36 |  DIO Port 0, Bit 7
            DIO Gnd  | 37  38 |  DIO Port 1, Bit 0
  DIO Port 1, Bit 2  | 39  40 |  DIO Port 1, Bit 2
  DIO Port 1, Bit 2  | 41  42 |  DIO Gnd
  DIO Port 1, Bit 2  | 43  44 |  DIO Port 1, Bit 2
  DIO Port 1, Bit 2  | 45  46 |  DIO Port 1, Bit 2
            DIO Gnd  | 47  48 |  DIO Gnd
 (External Trig In)  | 49  50 |  External Clock In
                     `--------'

NOTE: Data Translation does not recommend using the +/- 15 V pins to power external circuitry, due to limited current availability.

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