USB Charging Port Usage on the HP Z230 Workstation

On the Z230 tower workstation we include a special USB 2.0 port that will allow

some devices (cell phones, tablets, etc.) to charge faster. This USB 2.0 port is

called a Charging port. This port supports up to 1.5A of charging current under

normal operation, sleep, hibernate, and shutdown modes. The USB charging

port is on the front panel, and can be identied by the lightning bolt icon shown

below. This port follows the USB-IF’s USB Battery Charging Specication v1.2

(USB BC 1.2)*, and also the Chinese Telecommunications Industry Standard

YD/T 1591-2009.

Technical white paper

HP Z230 USB Charging Port

HP’s implementation of the Battery Charging Specication on the Z230 tower is on a USB 2.0 port; however, it is also possible to add

this functionality to a USB 3.0 port.

Symbol of Charging Port

Charging Modes

• Standard Downstream Port (SDP)

SDP is a traditional USB port that supplies 500 mA (USB 2.0) or 900 mA (USB 3.0). USB communication is supported in

this mode.

• Charging Downstream Port (CDP)

CDP is not only a traditional USB port, but it also follows the USB BC 1.2 Specication. This allows the USB port to

supply 1.5A. Simultaneous USB communication and charging is supported in this mode.

• Dedicated Charging Port (DCP)

DCP follows the USB BC 1.2 Specication and provides 1.5A. In this mode the DCP does not support USB

communication.

PAGE 1
Technical white paper HP Z230 USB Charging Port On the Z230 tower workstation we include a special USB 2.0 port that will allow some devices (cell phones, tablets, etc.) to charge faster. This USB 2.0 port is called a Charging port. This port supports up to 1.5A of charging current under normal operation, sleep, hibernate, and shutdown modes. The USB charging port is on the front panel, and can be identified by the lightning bolt icon shown below.
PAGE 2
Technical white paper | HP Z230 USB Charging Port Modes Setup Operating mode Charging Mode Maximum Current Data Communication Normal Operation SDP/CDP * 0.5 A or 0.9 A / 1.5 A Yes Sleep DCP 1.5 A No Hibernate DCP 1.5 A No Shutdown 1.5 DCP 1.5 A No 1 1.5 0.9 0.5 *The portable device will communicate with the on-board charger automatically for mode setup. If the portable device doesn’t accept 0.5 or support CDP mode, then the charger will go into general SDP mode.