User's Manual
The geographical area that can be served by a mobile communications network or system.
Coverage
Hole
An area within the radio coverage footprint of a wireless system where the RF signal level is
below the design threshold. Physical obstructions such as buildings, foliage, hills, tunnels, and
indoor parking garages are usually the cause of coverage holes.
Cy
c
li
c
Redundancy Check
(
CR
C)
A common
t
e
c
hni
que
for
de
t
e
c
t
i
ng
da
t
a
t
r
a
ns
m
i
ss
i
on
e
rr
or
s
.
Dynamic Ho
s
t
C
on
f
i
g
u
r
a
t
i
on
Pr
o
t
o
c
o
l
(
DHCP)
A protocol that assigns temporary IP addresses automatically to client stations logging onto an IP
network, so the IP addresses do not have to be assigned manually. The OM5P-AN contains an
internal DHCP server that automatically allocates IP address using a user-defined range of IP
addresses.
Dead
S
po
t
An area within the coverage area of a WLAN where there is no coverage or transmission falling
off. Electronic interference or physical barriers such as hills, tunnels, and indoor parking garages
are usually the cause of dead spots. See also coverage area.
802.11
A category of WLAN standards defined by the Institute of Electrical and Electronics Engineers
(IEEE).
802.11a
An IEEE standard for WLANs that operate at 5 GHz, with data rates up to 54 Mbps.
802.11b
An IEEE standard for WLANs that operate at 2.4 GHz, with data rates up to 11 Mbps.
802.11g
An IEEE s
t
a
nd
a
r
d
for
WLANs
that
op
e
r
a
t
e
s
at
2.4 GHz,
with
da
t
a
rate
of
300 Mbps. The
new
s
t
a
n
da
r
d
also raises
the
encryption bar
to
WPA2. The 40 HT
option
can be added
to
increase
the
da
t
a
rate.
E
n
c
r
y
p
t
i
on
Translates data into a secret code to achieve data security. To read an encrypted file, you must
have a secret key or password for decryption. Unencrypted data is referred to as plain text;
encrypted data is referred to as cipher text
ESS
ID
The
unique identifier
for
an
E
SS
.
All Access
P
oi
n
t
s
and
their
a
ss
oc
i
a
t
e
d
wireless
s
t
a
t
i
o
ns
in the
same group
m
us
t
have
the
same
E
SS
I
D
.
F
oo
t
p
r
i
n
t
Geographical areas where an
entity
is licensed
to
br
oa
dc
a
s
t
i
t
s
s
i
g
na
l
.
G
a
t
e
w
a
y
A computer
s
y
s
t
e
m
or other
device
that
a
c
t
s
as a
translator
be
t
w
ee
n
two
s
y
s
t
e
m
s
that
u
s
e
different
c
om
muni
c
a
t
i
on
pr
o
t
oc
ol
s
,
da
t
a
formatting
s
t
r
uc
t
ur
e
s
,
languages,
and/or architecture.
HT mode