This is the AC3 interface card #A-2237-1601. It is specifically designed for use with SP25M.
- 16-bit IBM ISA bus plug-in PC card with two external connectors capable of giving better than 0.1 μm resolution
- Simple to install and connects directly to a standard Renishaw multiwire probe signal cable
- Performs probe management functions
- Communicates status information to the host PC
- Converts each of the SP25M analogue probe axis outputs into 2’s complement binary numbers accessible to the PC
- Optically isolated PICS (Renishaw’s probe interconnection system) interface
- Reading synchronisation using the PICS interface or software commands
- Probe power removal using PICS
- Full ISA bus address decoding
- Optional 16-bit data transfers via the additional ISA 36-way connector
- Interrupts generated on receipt of PICS or software AQUIRE command
- The AC3 contains a number of registers that are accessible to software using I/O commands
- ΔT controller compatibility is achieved by the use of option switches
- AC3 also has its own board identification, which it presents to software
- SP25M and AC3 have been designed with a probe identification resistance of 9.375 kΩ
