The CAEN Trigger Electronics line is broadened by three brand new VME products:

The CAEN Mod. V976 houses four 4-input Coincidence, Fan in/Fan out and NIM-TTL Adapter sections: each section can either operate as a 4 channel NIM-to-TTL or TTL-to-NIM translator or perform the AND/OR logic functions. The module works also as Fan out and supports the Majority logic function. The V976 accepts both NIM and TTL signals; this could turn out to be useful for present generation experiments involving multi-wire proportional chambers systems and elaborate digital triggers. The unit features LEMO 00 I/O connectors.
The CAEN Mod. V925 offers three 4 Input + 4 Output Fan in/Fan out sections, one 3 Input + 3 Output Fan in/Fan out section and one 1 Channel Discriminator. Each Fan in/Fan out section produces on all its output connectors, the sum of the signals fed to the inputs, eventually inverted. Fan in/Fan out inputs are bipolar, while the output can be either inverting or non inverting. Both input and output signals are DC coupled.
The discriminator channel has one DC coupled input, the threshold is adjustable and monitorable via test point; the output is NIM standard and its width is adjustable as well.
The unit is fast enough to be suitable to all common photomultiplier and logic signals, and there are no duty cycle limitations or rate effects.

The CAEN Mod. V977 is a 16 channel general purpose I/O register. The device allows to either receive or send patterns of logical signals. Signals are NIM/TTL standard on LEMO 00 connectors. An additional TEST input signal can be sent via a front panel pushbutton, while a fully programmable VME RORA Interrupter generates a VME interrupt request when the OR of one or more output signals has a TRUE status. The BUSY output pulse is generated in a similar way to the interrupt request: one or more output signals can be OR'ed, and, whenever such OR has a TRUE status, such signal is produced.

The V976, the V925 and the V977 are implemented into 1-unit VME mechanics.

During the latest AMS-02 meeting, CAEN Aerospace introduced an overview of the HV power supply solutions for three subsystems (ECAL, RICH and TOF) of the detector.
The power supplies and their control electronics will be organised into "Bricks"; each Brick is essentially a 5-slot VME-like mechanics, housing devices such as HV Linear Regulator Boxes, HV Elevator Boxes, Slow Control Boards and HV Distribution Boxes. While these devices are already being tested, the first Brick-prototypes will be assembled by July 2003.