Three X-Rack modules feature 25 pin dsub connectors as follows. The thread of the D connector retaining screws is common 4-40 UNC.
Master Bus Module
The pinout follows the Tascam specification. Ready-made 25 pin to 8 x XLR looms are available commercially and can be used, although male/female adaptors may need to be used on the XLR side.
Four Channel Input module
The pinout follows the Tascam specification except that the signal phase is reversed. Custom cabling needs to be used to preserve correct phase, if absolute phase is important in your installation. A standard 25 pin to 8 x XLR loom can be customized by reversing the + and - on the XLR side.
Eight Input Summing Module
The pinout follows the Tascam specification except that the signal phase is reversed. Custom cabling needs to be used to preserve correct phase, if absolute phase is important in your installation. A standard 25 pin to 8 x XLR loom can be customized by reversing the + and - on the XLR side.