Solution
The table below shows the pin number, signal, and wire color (interior to cable) for the SHC68-2MDR26-RDIO2 cable. The P1 (VHDCI) pin maps to the pin on the VHDCI connector, whereas the P2 and P3 connector maps to the DIO (0-15) and DIO (16-31) MDR connectors respectively.
Figure 1 - DIO Pins (0-15)Figure 2 - DIO Pins (16-31)