Lantronix
SM12XPA Web User Guide
33848 Rev. A
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The main difference between a Network Connectivity Device and an Endpoint Device is that only an Endpoint
Device can start the LLDP-MED information exchange.
Even though a switch should always be a Network Connectivity Device, it is possible to configure it to act as an
Endpoint Device, and thereby start the LLDP-MED information exchange (In the case where two Network
Connectivity Devices are connected together).
Coordinates Location
Latitude
: Latitude should be normalized to within 0-90 degrees with a maximum of 4 digits. It is possible to
specify the direction to either North of the equator or South of the equator.
Longitude
: Longitude should be normalized to within 0-180 degrees with a maximum of 5 digits. It is possible to
specify the direction to either East of the prime meridian or West of the prime meridian.
Altitude
: Altitude should be normalized to within -32767 to 32767 with a maximum of 4 digits. It is possible to
select between two altitude types (floors or meters).
Meters
: Representing meters of Altitude defined by the vertical datum specified.
Floors
: Representing altitude in a form more relevant in buildings which have different floor-to-floor
dimensions. An altitude = 0.0 is meaningful even outside a building and represents ground level at the
given latitude and longitude. Inside a building, 0.0 represents the floor level associated with ground level
at the main entrance.
Map Datum
: The Map Datum is used for the coordinates given in these options:
WGS84
: (Geographical 3D) - World Geodesic System 1984, CRS Code 4327, and Prime Meridian Name:
Greenwich.
NAD83/NAVD88
: North American Datum 1983, CRS Code 4269, Prime Meridian Name: Greenwich; the
associated vertical datum is the North American Vertical Datum of 1988 (NAVD88). This datum pair is to
be used when referencing locations on land, not near tidal water (which would use Datum =
NAD83/MLLW).
NAD83/MLLW
: North American Datum 1983, CRS Code 4269, Prime Meridian Name: Greenwich; the
associated vertical datum is Mean Lower Low Water (MLLW). This datum pair is to be used when
referencing locations on water/sea/ocean.
Civic Address Location
IETF Geopriv Civic Address based Location Configuration Information (Civic Address LCI).
Country code
: The two-letter ISO 3166 country code in capital ASCII letters - Example: DK, DE or US.
State/Province
: National subdivisions (state, canton, region, province, prefecture).
County
: County, parish, gun (Japan), district.
City
: City, township, shi (Japan) - Example: Copenhagen.
City district
: City division, borough, city district, ward, chou (Japan).
Block (Neighborhood)
: Neighborhood, bock.
Street
: Street - Example: Poppelvej.
Leading street direction
: Leading street direction - Example: N.
Trailing street suffix
: Trailing street suffix - Example: SW.
