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Port Protocols and
Connection Specifics
Two key EZ-USB features that are important to the end user are:
1.
The EZ-USB family provides a "soft" (RAM-based) solution that allows unlimited configuration and upgrades.
2.
The EZ-USB family delivers full USB throughput. Designs that use EZ-USB are not limited by number of
endpoints, buffer sizes or transfer speeds.
Because the USB interface card is RAM based it must have firmware loaded into it every time it is turned on
®
POSjet
1500 interface card can be configured with firmware in an EEPROM on the interface card or down loaded
from the windows USB driver. TransAct will support firmware on the interface card upon request but supports the
driver down load by default. (The driver down load takes less than a second!) We are doing this to allow easy USB
updates and to assure compatibility between the host driver and the firmware on the USB Interface card.
The USB Driver is available from Technical Support and by download from our web site.
TransAct has written a POSPrinter.OCX ActiveX that will allow you to easily interface to our printers. It is used by
all of our demonstration programs. This OCX is available for use with customer applications. It works with printers
installed on Serial COM ports, LPT ports and USB. A USB compatible Beta version is available from customer
support or from our web site.
Page 254
®
POSjet
1500
Rev M
Programmer' s Guide
The
.
Nov-07
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Table of Contents
Troubleshooting
