• 321-1BH70 | 3211BH70 • 321-1BH70 – Digital input module: (SAMPLES) Serialno: 000404/000403: Features 16x fast DI, SPEED-Bus, 2,56µs…40ms, Parameterizable as Alarm/ETS, For 20 pole front connector, Technical data digital inputs: Number of inputs 16, Cabl