User's Manual Part 2

Tally Dascom 2600/2610/PRN-7
7.3 Interfaces Specifications
Your matrix printer offers connectivity via a parallel interface, USB and Ethernet
interface. Serial I/O RS232C interface is an option. This appendix informs you about the
parallel Interface, USB, Ethernet interface and optional serial interface RS232C, and
describes the communication between your computer and the printer.
These interfaces are linked to form a called shared interface. Your printer can be
configured to use only one interface or three alternately. When only one interface is
used, it is monitored by the printer. If the printer is configured to use three interfaces
simultaneously it monitors all interfaces for incoming data. As soon as the printer
recognizes a signal, it switches to the respective interface and sends the BUSY signal to
the other interface. After finishing the data transmission, the printer remains switched to
the interface for a certain period of time (30 seconds). When this time has elapsed, the
controller again enables all interfaces and the sequence described restarts. If incoming
data is on the other interface and the current print position is not “Top of Form”, a form
feed is carried out.
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