Matrox Meteor-II /Multi-Channel grab section 63
opto-isolated trigger Trigger signals connected to the OPTOTRIG- and OPTOTRIG+ input pins, pass through an opto-coupler, a device that protects the board from outside surges; OPTOTRIG- is usually connected to the ground of the trigger source. The voltage difference across OPTOTRIG+ and OPTOTRIG- must be between 4.05 V and 9.16 V for logic high, and between -5.0 V and 0.8 V for logic low. Refer to Appendix C for the pinouts of these signals on your board.
UART
Matrox Meteor-II /Multi-Channel features a Universal Asynchronous Receiver/Transmitter (UART) that provides an RS-232 serial interface. For example, this allows you to remotely control a camera or a motion control unit, or remotely communicate with a program logic controller (PLC). The UART is programmed using the MIL-Lite command MdigControl() with the M_UART... control types.
Note that the UART is not present on the Meteor-II /Multi-Channel for PC/104-Plus.
Lookup table (LUT)
Matrox Meteor-II /Multi-Channel has three 256x8-bit input lookup tables (LUTs), allowing independent re-mapping of three 8-bit input streams.
The LUTs on the Matrox Meteor-II /Multi-Channel for PCI support RGB 8:8:8 (24-bit) output pixel formats. The LUTs on the PC/104-Plusform factor support RGB 8:8:8, RGB 5:6:5, and RGB 5:5:5 output pixel formats. LUTs are programmed using the MIL-Lite command, MdigLut().
User bits
Meteor-II /Multi-Channel supports four auxiliary TTL user bits through the video input connector: two input and two output. These are available for controlling external events such as a strobe light or PLC. User bits are programmed using the MIL-Lite command MdigControl().
