CL4490 Series

Support 800-492-2320 ext 3

Power supply connector: OD 5.5mm/ID 2.8mm Adaptaplug "O" enercell 273-346

For device firmware update Configuration Utility should be the tool.

CTS/RTS recommended by support, DCD being required is a surprise.

CL4490 UART pins - Forum

Configuration/Test Utility can "open" port without radio attached