Cambium Networks PMP 450 AP, Руководство по настройке

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Chapter 2: Tools Using AP Evaluation tool
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2-349
Attribute Meaning
Index This field displays the index value that the system assigns (for only this
page) to the AP where this SM is registered.
Frequency This field displays the frequency that the AP transmits.
Channel Bandwidth The channel size used by the radio for RF transmission. The setting for the
channel bandwidth must match between the AP and the SM.
Cyclic Prefix OFDM technology uses a cyclic prefix, where a portion of the end of a
symbol (slot) is repeated at the beginning of the symbol to allow multi-
pathing to settle before receiving the desired data. A 1/16 cyclic prefixes
mean that for every 16 bits of throughput data transmitted, an additional bit
is used.
The Cyclic Prefix 1/16 only can be selected at this time.
ESN This field displays the MAC address (electronic serial number) of the AP.
For operator convenience during SM aiming, this tab retains each detected
ESN for up to 15 minutes. If the broadcast frequency of a detected AP
changes during a 15-minute interval in the aiming operation, then a multiple
instance of the same ESN is possible in the list. Eventually, the earlier
instance expires and disappears and the later instance remains to the end of
its interval, but you can ignore the early instance(s) whenever two or more
are present.
Region This field displays the AP’s configured Country Code setting.
Power Level This field displays the SM’s combined received power level from the AP’s
transmission.
Beacon Count A count of the beacons seen in a given time period.
FECEn This field contains the SNMP value from the AP that indicates whether the
Forward Error Correction feature is enabled.
0: FEC is disabled
1: FEC is enabled
Type Multipoint indicates that the listing is for an AP.
Age This is a counter for the number of minutes that the AP has been inactive. At
15 minutes of inactivity for the AP, this field is removed from the
AP Evaluation tab in the SM.