Figure 2- Pull Up Resistors - Omega Engineering OMG-USB-DIO48 User Manual

Pull Ups
Ten pin bussed resistor packs are installed to provide pull-ups to the input ports.
These are installed on all ports. The pull-up resistor packs are rated at 10K ohms.
Figure 2 below provides the bussed resistor and corresponding port. The
resistors insure that no line is floating which is not connected. This provides
consistent biasing on all un-terminated lines.
OMG-USB-DIO48
Bussed Corresponding
Resistor Port
RP3 Port A1
RP2 Port B1
RP1 Port C1
RP6 Port A2
RP5 Port B2
RP4 Port C2

Figure 2- Pull Up Resistors

Technical
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