The DIF-AT receives its power via the RMDB2 cable and the devices connected to it. Once connections have been made to the DIF-AT, turn on the power in the order specified:

1. Turn on the power to the RMDB2-compatible devices (the VM-3100Pro as an example). The power indicator on the DIF-AT lights orange.
2. Turn on the power to the ADAT or TASCAM DA series device. The DIF-AT checks the connection with the ADAT or the TASCAM DA series device, and the corresponding indicator on the DIF-AT lights green.
3. Turn on the power to the other audio equipment.
   NOTE: By turning on devices in the wrong order, you risk causing malfunction and/or damage to speakers and other devices.