Installation Guide

Table Of Contents
Task 4: Configuring General and Unit settings PMP 450i and PTP 450i Configuration and User
Guide
You may set the time parameters as follows:
Table 25 AP Time attributes
Attribute Meaning
NTP Server (Name or
IP Address)
The management DNS domain name may be toggled such that
the name of the NTP server only needs to be specified and the
DNS domain name is automatically appended to that name.
NTP Server 1 (Name
or IP Address)
NTP Server 2 (Name
or IP Address)
NTP Server 3 (Name
or IP Address)
To have each log in the AP correlated to a meaningful time and
date, either a reliable network element must pass time and date
to the AP or you must set the time and date whenever a power
cycle of the AP has occurred. A network element passes time and
date in any of the following scenarios:
A connected CMM2 or CMM4 passes time and date (GPS time
and date, if received).
A connected CMMmicro passes the time and date (GPS time
and date, if received), but only if both the CMMmicro is
operating on CMMmicro Release 2.1 or later release. (These
releases include NTP server functionality.)
A separate NTP server (including APs receiving NTP data) is
addressable from the AP.
If the AP needs to obtain time and date from a CMMmicro,
CMM4, or a separate NTP server, enter the IP address or DNS
name of the CMM or NTP server on this tab. To force the AP to
obtain time and date before the first (or next) 15-minute interval
query of the NTP server, click Get Time via NTP.
The polling of the NTP servers is done in a sequential fashion,
and the polling status of each server is displayed in the NTP
Update Log section of the Time Configuration page. An entry of
0.0.0.0 in any of the NTP Server fields indicates an unused server
configuration.
NTP Server(s) in Use Lists the IP addresses of servers used for NTP retrieval.
Time Zone
The Time Zone option may be used to offset the received NTP
time to match the operator’s local time zone. When set on the AP,
the offset is set for the entire sector (SMs is notified of the
current Time Zone upon initial registration). If a Time Zone
change is applied, the SMs is notified of the change in a best
effort fashion, meaning some SMs may not pick up the change
until the next re-registration. Time Zone changes are noted in the
Event Log of the AP and SM.
System Time The current time used by the system.
Last NTP Time Update The last time that the system time was set via NTP.
Time This field may be used to manually set the system time of the
radio.
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