Special Features
Provides primary interface between unit under test and test set, control an/usm-442; provides modem test points, rt test points, tdma/adapter test points, modem clock test points, tdma data test points, three position (combined, tdma and modem) rotary compare select switch, test set display lamps- direct, test set lamp strapping-buffered, test set control switches, serial clock and data buses, serial data displays and internal logic