1-4
MEGA3 NFPA Medical Gas Notification System
4107 9016 59.03
1.3 Definition of Statements
Statements in this manual preceded by the
following words are of special significance.
WARNING: Means there is a possibility
of injury or death to yourself or others.
CAUTION: Means there is a possibility of
damage to unit or other property.
SHOCK HAZARD: Means there is a
possibility of electric shock.
ATTENTION: Means precautions for han-
dling electrostatic sensitive devices are
to be observed.
NOTE
: Indicates points of particular interest
for more efficient and convenient operation.
1.4 Definitions
Address Resolution Protocol (ARP)
Protocol used by a device to learn the MAC
address of another device so it can send an
Ethernet packet.
Area Alarm Panel
Alarm panel that monitors medical gas and
vacuum systems serving a specific area.
Combination Alarm Panel
Alarm panel that combines features of a mas-
ter alarm panel and an area alarm panel.
4-20 mA
Input which monitors a two or three wire
4-20mA transducer.
Crossover Cable
Network cable that swaps transmit and re-
ceive pairs so cable can be used to connect
two computers or devices without the use of
a hub or switch.
Domain Name Server (DNS)
A device that has a list of device names
matched to IP addresses. Browsers use this
resource to locate the IP address of a named
device. NetBIOS name service provides this
function on a local network.
Dry-Contact
Electrical contact isolated or unconnected
from any electrical source.
Dynamic Host Configuration Protocol
(DHCP)
A protocol used by a server to assign IP
addresses to devices and computers.
Electromagnetic Compatibility (EMC)
Verification that a product meets required
standards for emissions of and immunity
from electromagnetic energy in its intended
environment.
Ethernet
A standard high-speed network medium
specified by IEEE standard 802.3.
