> 6.3 | Cable Requirements

> The TC65 Terminal has to be tested and approved for use with a maximum cable length of 3m for following interfaces:

> - | USB interface (shielded)

> - | Serial interface (RS232)

> - | ADC inputs

> - | GPIOs

> The length of following lines may exceed 3m:

> - | DC power supply lines

> - | Audio interface

> - | Antenna interface

> It is recommended to keep the digital lines for I²C-, SPI- lines as short as possible. The maximum cable length is 150mm.