N408

The Mod. N408 is a one unit wide NIM module which performs the function of a logic adder on 24 independent input NIM signals. Each true input signal gives a contribution of 50 mV on an internal analog adding section.
Its output (Linear Out) is available externally, both normal and inverted. The same output is also fed to the input of a discriminator whose threshold is set via front panel trimmer and test point. In this way the threshold value sets the desired majority level. The discriminator output (NIM Out) is available both in normal and in complementary logic on two front panel connectors. The output width can be set, via front panel trimmer, in the range from 40 to 350 ns.
An auxiliary linear input, positive or negative, is available on the front panel and its voltage is algebraically added to the linear sum of the internal analog adder.