User's Manual Part 1

62 Mercury Reference Manual 05-4446A01, Rev. D
• SINGLE_CHAN—Specifies the AP’s Single Frequency mode
channel.
The MAC label may appear twice if a P23 redundant Access Point is
installed at that location. In this case, one MAC statement provides the
MAC address of the A radio and the other MAC statement provides the
MAC address of the B radio. The CHANNELS statement only needs to be
present if the channel selection feature is used at the Access Point to
limit which channels are active. If all channels are used, you can leave
out the
CHANNELS statement. You can leave out the BW statement for
APs that are configured to 1.75 MHz bandwidth. You can also leave out
the
DUR statement for APs that are configured with a 20 millisecond
frame duration.
NOTE: MAC filtering on APs should be used only in a stable network
or with the complete understanding that devices not listed in
the AP filter will not gain access to the Remotes, nor be acces-
sible to the Remotes.
The following shows the syntax of the AP Locations file:
# Mercury Remote AP Locations file
# These lines are comments
# The following line defines the beginning of an AP definition block
<AP>
NAME=MyAccessPoint
LAT=43.11790
LONG=-77.61270
OFFSET=3
BW=1.75
DUR=20
MAC=00:06:3D:00:01:23
CHANNELS=1,3,5,7,9,11,13
# The following line defines the end of the AP definition block
</AP>
3.4.6 SNTP Server Configuration
The Simple Network Time Protocol (SNTP) allows the Mercury to
obtain time of day data from a network server.
NOTE: The Mercury can also obtain time of day data from the GPS
receiver, if the receiver has a satellite fix.