The difference between SMB model and SMC model.
1. SMB
model uses
BUS input to power up the logic board and encoder.
Advantage: Only requires one input power source to operate
the amplifier
Disadvantage: In case of input power failure, the amplifier
will shut down completely including the logic board and encoder.
2. SMC
model requires
external 24VDC input to power up the logic board and encoder.
Advantage: As long as the external 24VDC stays on, the logic
board and encoder power will stay alive even if the BUS input
shuts down.
Disadvantage:
Needs two separate input power sources (external 24VDC & BUS
input) to operate the amplifier |
