Microscan Quadrus EZ, User Manual, Page: 302 / 366

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Quadrus EZ Reader User’s Manual
Step 4 —Ethernet Application
The Quadrus EZ supports the Microscan communication protocol for readers over two
TCP/IP ports. This is the same “protocol” that is supported through the reader's RS-232
Host serial port. Note that on Ethernet, the Quadrus EZ is a server device, which requires
the Host to establish the connection. Once the connection is established, however, the
reader will send bar code and diagnostic message data whenever it is generated.
Network Protocols Supported
The Quadrus EZ supports the following RFC-compliant protocols:
IP RFC0791, RFC950
ICMP, PING RFC0792
TCP RFC0793
Sockets BSD v4.3
ARP RFC0826
DHCP client RFC0951, RFC1541, RFC2131, RFC2563 partial support
TFTP server Revision 2, RFC1350
Communication with the Quadrus EZ can be established via a Telnet client (raw data only,
no IAC command processing), or through a custom “sockets” application. The Quadrus EZ
becomes a “server” device. It listens for connect requests from the Host before communication
can begin. All Quadrus EZ readers have a unique 48-bit hardware (MACID) address. This
address is printed on the reader's product label.
Microscan Protocol/Host RS-232 Supported
• Configuration Commands (“ K Commands”)
• ESP interface commands (“ <op> ” commands)
• Utility commands <A> - <Z>
• Host preamble <K141> and postamble <K142> strings are added to command
responses and bar code data.
• All bar code data formatting is supported ( <K740> , <K741> ).
Differences from Other Protocols
• Y Modem is not supported. This includes Firmware Download command <dy> and
Image Send command <uy> .
• Reader does not send an immediate response to the reader’s Status command <?> .
The response is queued for output between read cycles. Also, the response is formatted
with host-port preamble and postamble characters.
• Aux port (RS-232) interaction is not supported for transferring data between Ethernet
and the aux port (Transparent, Half-, Full- Duplex). These modes only function with
the Host RS-232 port, and are not affected by Ethernet.
• Reader sends responses to “binary frame” commands out the Video TCP port when
connected. If not connected, the response will be sent to the Primary TCP port.