5.Make sure both units are connected by the Cat 5 cable, then turn on the power to the Remote unit.
6.Press and hold the the Local Unit’s Selection button, then turn on the power to the Local unit.
7.Wait until both green front panel LEDs on the Local unit are flashing on and off, then release the Selection button.
8.Make sure the orange LED on the front panel of the Remote unit is on (indicating that Firmware Upgrade Mode is in effect.
Note: If the LED is not on, or it is blinking, the unit is not ready to be upgraded. You must repeat steps 6 and 7.
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