For wider pulse width applications, the AVIR-3 family offers 10 to 200 ns pulse widths with 2 ns rise and fall times. The -C versions provide pulse parameters similar to those of the -B models, but do not include the GPIB or RS-232 interfaces (i.e. no computer control or LCD display). The output parameters are controlled by front-panel switches and oneturn controls. All models require 100 - 240V, 50-60 Hz prime power.