V977

Overview

The Mod. V977 is a 1-unit wide VME module that can work either as 16 channel general purpose I/O Register or as Multihit Pattern Unit; the operating mode is selected via VME and is signalled via front panel LEDs. The module has 16 Inputs/Outputs; an on-board switch allows to select between NIM and TTL output signals, NIM and TTL input signals are both accepted; 2 Leds signal the I/O status of each channel. The module features an additional channel (TEST CHANNEL), which allows to send a test pulse via a front panel pushbutton. Input channels can be individually/globally masked via VME or globally via a front panel GATE input. The channel status can be cleared either via VME or via the front panel common CLEAR input. The channels global OR and /OR outputs are available as front panel signals and can be eventually masked. GATE and CLEAR signals can be either NIM or TTL; OR and /OR can be set at NIM or TTL level in the same way of the output channels.

The module houses also a fully programmable VME RORA INTERRUPTER that generates a VME interrupt request when the OR of a selected set of output channels has a TRUE status. Live insertion is supported.