  We describe a novel high-speed front-end electronic board (FEB) for
interfacing an array of 32 Silicon Photo-multipliers (SiPM) with a computer.
The FEB provides individually adjustable bias on the SiPMs, and performs
low-noise analog signal amplification, conditioning and digitization. It
provides event timing information accurate to 1.3 ns RMS. The back-end data
interface is realized on the basis of 100 Mbps Ethernet. The design allows
daisy-chaining of up to 256 units into one network interface, thus enabling
compact and efficient readout schemes for multi-channel scintillating
detectors, using SiPMs as photo-sensors.
