6 Installing and Using the 4-Port PoweredUSB Hub

2.4.1 Power Supply

The PoweredUSB specification requires supplying +24V at 2.3A and +12V at 1.5A to each voltage designated port. These requirements are met only if the power supply has sufficient wattage for this amount of power.

The Epson PS180 brick and Dell printer power supply are examples of lower-cost alternate power supplies that can be used with this Hub and peripherals requiring less power. Two power plug receptacles are provided on the back of the 4-Port PoweredUSB Hub to facilitate the use of alternate power supplies.

The three-pin connector is normally used for the Dell and Epson Bricks. The four-pin connector is used for a high-current power supply. See Figure 2-9for an illustration of cable routing from the 4- Port PoweredUSB Hub.

CAUTION The P1 and P2 DC input jacks on the back of this Hub are for input only. Do not plug power supplies into both input jacks simultaneously as equipment damage that might void the product warranty could occur.

Figure 2-5. Power Connectors—Back View

+24V for

+24V for

USB Host

Strain

up to 2.5

up to 6.5

Connector

Relief

Amp load

Amp load

(Type B)

 

2.4.2 Host Connector

The connection to the host computer is achieved via a standard USB 2.0 certified Hi-Speed “A” to “B” cable that is included in the Accessory Kit, or with any equivalent USB 2.0 certified Hi-Speed cable. Refer to the Section 2.1, "Product Components List" for information about the Accessory Kit.

CyberData Corporation

930103D

Operations Guide