NCR 7197 II SERIES, Owner'S Manual

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7197 Series II Owner’s Manual Chapter 5: Communication
August 2011 38
TCP Socket communication
Communication procedure
The TCP socket is used to send commands and data related to printing. And it is also used
to send and receive the batch status commands and its statuses.
When “Ethernet RTC Protocol” setting is TCP, it is used by sending and receiving of Real
Time Command.
1) Client PC connects to the TCP socket via the defined port number of the printer.
2) Client PC transmits the commands and the data of the printer.
3) When the printer receives the batch status command, the response is transmitted to
client PC.
UDP Socket communication
The UDP socket is used to retrieve the printer information (e.g. printer status) immediately.
This is effective in UDP port 3000 when “Ethernet RTC Protocol” setting is UDP
1) Client PC connects to the UDP socket via the defined port number of the printer.
2) Client PC sends the status command and receives the status from the printe via UDP
socket.
Multiple Connection
It is possible to connect with multiple clients at the same time.
However, if the first connection doesn’t finish, the next connection cannot transmit data to
the printer by the session.
It is possible to connect it with 4 connections (three for TCP(RAW) , one for TCP(LPR)) at
the same time. However, more than 5 connections will be rejected.
.