Technical Description
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.
Bussed | Corresponding | Bussed | Corresponding |
Resistor | Port | Resistor | Port |
RP4 | Port A1 | RP1 | Port A2 |
RP5 | Port B1 | RP2 | Port B2 |
RP6 | Port C1 | RP3 | Port C2 |
Figure 2-Pull Up Resistors
