CognitiveTPG A760 - Manual (Page 14)

A760 User Guide: Programming Supplement
Chapter 2: Printer Status, Ethernet and Indicators 14 Revision F January 2010
Ethernet terminology and default setup
For the printer to operate with Ethernet, a series of commands must be set within the printer.
These commands can only be set through the host computer and are not configurable through the
printer configuration menu. See page 20 for the Ethernet setup commands list and page 135+ for
command descriptions.
Default setup instructions and sample Ethernet diagnostic printout are on the following page. Note
the differences between an Ethernet and a standard RS-232C printout.
Ethernet Terminology
Before making command settings, review the following description of terms to fully understand
their intended meaning.
MAC address a unique hexadecimal serial number assigned to each Ethernet network device to identify it on the
network. Each A760 communication board gets a unique number from CognitiveTPG’s assigned range
of numbers. CognitiveTPG numbers start with: 00:E0:70.
IP address a unique number that identifies each node on a network and to specify routing information. Each
node must be assigned a unique IP address. The address is made up of two distinct parts: a
network ID, which identifies the network; and a host ID, which is typically assigned by the
administrator. These addresses are typically represented in dotted-decimal notation, such as
138.58.11.27. The default setting is: 192.0.0.192
Net mask a series of bits designed to “mask” certain portions of an IP address and is used primarily for
subnetting. The standard netmask for a Class C network is 255.255.255.0, with the last octet (.0)
directing the host to look there for the machine number. The rest (225) is the network number. The
default setting is 0.0.0.0
Gateway a hardware or software set-up that translates between two dissimilar protocols. A gateway, even
when the printer is on another subnet, is not always needed. The printer initiates no connection
and obtains the gateway address from the host packets. The default setting is 0.0.0.0 (none)
LP Daemon an Ethernet protocol. The LP Daemon listens on port 515. Default is LP Daemon disabled.
Telnet Daemon a protocol for remote computing on the Internet. It allows a computer to act as a remote terminal
on another machine, anywhere on the Internet. This means that when you telnet to a particular
host and port, the remote computer (which must have a telnet server) accepts input directly from
your computer (which must have a telnet client) and output for your session is directed to your
screen. The telnet server listens on port 23. The default setting is enabled.
Raw TCP/IP Port enables the printer to listen for raw tcpip communications. Specifying this to zero will disable raw
tcpip connections. Default value is 9001 enabled.
BootP a TCP/IP network protocol that lets network nodes request configuration information from a
BOOTP “server” node. Use BootP to obtain the IP address at power-up. Default setting is
disabled.
DHCP allows “leasing” of IP address for a limited time. If no IP address is found at start-up, the printer
waits for two more minutes. If no address is found after two minutes DHCP will automatically set
the default IP address. Default: enabled