Mach-DSP User’s Manual
Document Number: MACH-DSP-9021
Page 17
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3.2c
Differential Signaling (XY2-100) Interface Daughterboard
An optional Differential Signaling Interface Daughterboard can be fitted onto the Mach-
DSP, providing XY2-100-compatible differential signaling with RS-422 voltage levels.
This allows the Mach-DSP to be used with standard laser-marking-style laser controllers
that output XY2-100. This is shown in the picture below, with the laser-marking
controller appearing in the lower left of the picture and Mach-DSP in the upper-right.
The XY2-100 interface daughterboard uses a 26-pin IDC connector, which can be
connected through a ribbon cable directly to a laser-marking controller that also uses a
26-pin IDC connector. Alternatively, the ribbon cable can be terminated in a DB-25
connector, as was typical many years ago when the XY2-100 standard was developed.
When it is desirable to run the Mach-DSP from power sent through the XY2-100 cable,
you should connect the power wires from 4-pin power connector (discussed in section
3.1 of this manual) to the Red, Green, and Blue terminals on the right side of the
daughterboard (or terminals designated +, -, and ground if they’re not colored). Red
indicates positive voltage, Green indicates ground, and Blue indicates negative voltage.
Be sure to select a
Digital Input
as the
Input Source
, as discussed in section 7.3.
