VDP 92.1
6.4
USB Interfaces
XUSB – Serial Interfaces for
Printer, Scanner and CD-ROM
DOK-SUPPL*-VDP*92.1***-PR02-EN-P
The devices feature two USB interfaces on the connector panel (XUSB1
and XUSB2) and one in the front panel (not for devices for the food
Drive
industry).
Note:
The maximum power consumption of the connected device
must not exceed 500 mA. If the load exceeds 500 mA, the
internal current monitoring is activated.
Note:
The USB interfaces are not supported by the operating system
Windows NT4.0.
XUSB
1
2
3
4
Shield
Fig. 6-4:
USB interfaces XUSB1 and XUSB2
Pin
Function
1
USB power supply (max. 500 mA)
2
Data -
3
Data +
4
USB ground
Note:
It is only possible to connect USB devices fulfilling the USB
specification. However, USB devices that e. g., don't maintain
the specified reaction time are also commercially available.
Thus, the general function of non-specification-compatible
USB devices is not guaranteed.
XUSB
1
USB device
USB_P
2
USB1
3
USB2
4
USB_M
Shield applied to the metal housing
of the plug-in connection
6-3
Interfaces
XUSB_sst.FH11