Do Transparent Ready devices perform a duplicate IP address check on power up, and if so how is this accomplished?



Yes. Transparent Ready device do perform a duplicate IP address check.
This is accomplished by sending up to 4 ARP request broadcasts to the destination IP address it has configured. If an ARP Reply is received, this indicates that the IP address is already in use on the local subnet and the Transparent Ready device will then not assume that address, but indicate a flash code error.