Parker PHD28, User Manual, Page: 39 / 157

User Guide 31
Communication
6.2. USB
The PHD family supports one USB port capable of full speed USB 2.0. The USB
port is configured as Host or Device based on settings in software. The USB port
allows you to connect temporarily to the unit for the purpose of retrieving logs,
updating code, or configuring the unit.
The following table provides specifications for the USB port:
USB Device Specifications
Item Min Nom Max Unit
Communication speed - Full Speed 12 Mbps
Capacitance of I/O to ground 2.5 3.5 pF
Reverse standoff voltage
(note 1)
5 V
Note 1: USB connectors are not rated to survive a short to vehicle battery.