Overview
The Analog Bias is an Analog Gate that sums up the input Redstone signals and outputs the result. The equation for the output Redstone signal (O) based on two input Redstone signals (IA and IB) is:
O = IA + IB
Since Redstone operates on signal levels from 0 to 15, the output signal is capped at 15.
Configuration
The inputs are marked with Pin Mark A and can be configured to face any direction for normal Analog Bias by right-clicking the block.
Parallel Analog Bias
The Analog Bias also has a Parallel Gate variant. In this configuration, the output is determined by finding the greatest signal on the Left and Right sides and then adding the signal on the Back. The equation for the output Redstone signal (O) based on the input Redstone signals (Left L, Right R, and Back B) is:
O = B + max(L, R)
max(L, R) is the greatest signal between the Left (L) and Right (R) sides.
As always, the output signal is capped at 15.