Using the HP DTC 16RX Manager

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Glossary
and can be used for either modem or direct connections.
RS-422 The Electronic Industries Association (EIA) Level 1 specification implemented by
HP in a 5-pin version that can be used for direct device connection up to a distance
of 1500 meters (4000 feet).
RS-423 The Electronic Industries Association (EIA) Level 1 single-ended specification that
can be used for direct device connection up to a distance of 200 meters (600 feet).
S
serial device Any device that is attached to and communicates with a computer by means of a
serial transmission interface. Terminals, some printers, and plotters are among the
devices that communicate serially with computers.
serial transmission A method of transferring data in which characters are transmitted one bit at a time
and received one bit at a time in the order of transmission. This transmission scheme
is employed by devices connected to the systems via the DTC 16RX.
slaved device A device that shares the same DTC port as another device and is connected, to the
other device, referred to as its master, by a cable. The actions of the slaved device are
controlled by the master device.
SNMP Simple Network Management Protocol. An industry standard for managing
networked computers in a multi-vendor environment.
SNMP agent A network node, such as a DTC, that can respond to SNMP requests.
SNMP manager A network management workstation that is running software which allows it to
manage SNMP nodes, for example HP OpenView Network Node Manager.
spooled device A printer that is accessed through the HP-UX spooling facility. The spooling facility
allows a device to be shared among several users by temporarily storing output data
on disk and managing the selection of output spool files destined for the spooled
device.
station address A link-level address used by the IEEE 802.3 protocol that is assigned to every node
on an IEEE 802.3 network.
subnet A portion of a network that is defined as a separate network. All the bits in the IP
address specified by the subnet mask (that is, all the bits set to 1 in the subnet mask)
are the same for any two IP addresses in that subnet.
subnet address The portion of the IP address that identifies a physically distinct subnetwork of a
network. It is also called a subnet number.
subnet mask A 32-bit number that enables the node address portion of an IP address in a
subnetwork to be identified. Bits in the subnet mask are set to 1 if the network treats
the corresponding bit in the IP address as part of the network address, and to 0 if the
network treats the corresponding bit in the IP address as part of the node address. The
subnet mask 11111111 11111111 11111111 00000000 (or 255.255.255.0)
indicates that the first three bytes identify the network and the fourth byte identifies