Product Description

The 94 CAMAC module addresses the problem of interfacing CAMAC to the ’real world’, where there are problems such as signals that need to be optical (for noise reasons), or are in the wrong signal standard, or just the wrong polarity.

The unit has high power output drive circuits to buffer signals that have to go to several places and on the optical side, wide range but sensitive input circuits, together with dual, switch selectable, eight steps of optical power drive outputs.

Each has a green/red indicator lamp, (LED), which is driven by a pulse stretcher or the DC level. It acts like a logic probe on input, stretching short pulses (optical or electronic) into 100mS visual signals. When only green is showing and the switches are set for normal input polarity there is no signal.

The optical/electronic signal repeater module provides conversions between optical and electrical external control signals in CAMAC systems. The module contains two identical signal channels which may have inputs derived from either optical signals or electrical signals to predefined signal standards, the standard being selected by a switch.

The input signals will generate parallel electrical and optical outputs to pre–selected signal standards, the signal level and form being selected by a further series of switches. Signal inversion is also provided, also by switch. Visible indication is provided for each repeater to show if signals are passed through a channel.

The module responds to a limited set of CAMAC commands to enable signals to be generated locally for test purposes. The repeater is housed in a single width CAMAC module.

There is provision to link the two repeater’s circuits together (in the opto input mode only) to give parallel output signals from the top opto input (A0), on all the outputs (4 opto and 2 electronic) for use with multidrop systems.