OP5700 User Manual OPAL-RT Technologies 21
I/O Configurations
DB37F Connectors
Two connectors (P1 and P2) are available for each mezzanine, and their pinout depends on the type of
mezzanine installed:
Analog modules (DAC or ADC), which use only 16 channels, which are routed through connector P1
and P2 does not carry any signals.
Digital modules (Din or Dout), which use up to 32 channels; the first 16 channels (00 to 15) are routed
through connector P1 and the next 16 channels (16 to 31) are routed through connector P2.
All signals are represented by a positive-negative pair that are always available on the connector pins,
for example: for channel 08 : (+CH08, -CH08)
Connector Interface:
Single-ended output: negative pin is connected to ground.
Single-ended input: user’s ground must be connected to the negative pin.
Differential output: positive and negative signals must be on positive and negative pins.
Differential input: connection must be between the positive/negative pair.
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