User Manual

Chapter 4 - Operation and Administration GPS Menu
BreezeMAX Extreme 165 System Manual
The default is 0, indicating that a Chain Number is not configured yet. A valid
Chain Number must be configured, and this number must be unique in the
managed network to properly support future implementation of chaining.
4.11.2.1.2 GPS Type
The GPS Type defines the GPS receiver.
The available options are None and Trimble.
The default is Trimble.
4.11.2.1.3 Stop Tx After Hold Over Timeout
For initial synchronization, a minimum of four satellites must be received properly
(meeting certain criteria). Upon losing the 1PPS clock from the GPS, or if the
received clock is not considered accurate enough because the number of received
satellites dropped below the minimum (two satellites), the local 1PPS clock will be
generated using the internal 10MHz clock. After a certain time (defined by the
Hold Over Passed Timeout parameter described below), it is assumed that due to
clock drifts there might be interferences among sectors belonging to the BTS and
sectors belonging to neighboring BTSs. If the Stop Tx After Hold Over Timeout
parameter is set to Enable, the BTS will stop transmitting after this timeout
(unless the number of properly received satellites has increased again to four or
more), to prevent interferences to the sectors belonging to other BTSs. If it is set to
Disable, transmissions will continue indefinitely, at the expense of potential
interferences to sectors belonging to other BTSs.
The default is Disable (Hold Over indefinitely).
4.11.2.1.4 Hold Over Passed Timeout (Min)
This parameter defines the Hold Over timeout, after which there might be
interferences to other sectors. When the Stop Tx After Hold Over Timeout is
enabled, transmissions will stop after this timeout. When the Stop Tx After Hold
Over Timeout is disabled, this timeout is used to generate a trap indicating that
there might be interferences to neighboring sectors.
The range is from 0 to 2880 (minutes).
The default is 30 (minutes).
4.11.2.1.5 Time Zone Offset From UTC
This is the offset of the local time from UTC (Coordinated Universal Time).
The range is from -12:00 up to +13:00 in 30 minutes resolution. The format must
be either -XX:YY or +XX:YY where YY is either 00 or 30.
The default is +00:00.