Epson UB-U09, Руководство разработчика

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Rev. B System Preparation 1-1
UB-U09 Developer's Guide
Confidential
Chapter 1
System Preparation
Available Operating System
❏
Microsoft Windows 98

Second Edition and above.
(Available OS is limited only when using the USB interface. There is no limitation when
using the serial interface.)
Specifications
The UB-U90, which has been developed for EPSON

TM Printers, has serial and USB interface
functions. You can switch between the functions by using the USB/Serial switching located on
the front of the UB-U09.
❏
When using the USB interface, the fastest communication speed is 12Mbps. (bps: bit per
second)
❏
When using USB interface, the device driver is necessary. For more details, see Chapter 3
"Software"
(*) This interface board uses the bulk transfer method, which is driven by the host computer. Therefore, the printer
cannot process data sending interrupts as different from RS232 transfer. The printer’s status buffer is larger than
100 bytes. Status data above the buffer capacity will be cancelled. To prevent the cancellation, the host
computer needs to read the status data periodically.
Interface Type: USB Specification Rev.1.1
Communication Speed: Full Speed mode (12Mbit/s)
Transfer Method: Bulk Transfer method*
Electrical: USB self electrical function
USB BUS Consumption: 0mA (provided from TM printer)
USB Packet Size:
USB Bulk OUT (TM) 8bytes
USB Bulk IN (TM) 64bytes