User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
Page 532 of 825
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tx-level
Number
Depends on the
frequency and unit
type.
The desired TX signal
level (TSL), in dBm.
The following command sets the TX level of the remote radio to 10 dBm:
radio[2/1]>remote-unit set tx-level 10
16.1.6
Configuring Remote ATPC (CLI)
To set the RX reference level for ATPC on the remote radio, enter the following
command in radio view:
radio[x/x]>remote-unit atpc set ref-level <ref-level>
To display the RX reference level for ATPC on the remote radio, enter the
following command in radio view:
radio[x/x]>remote-unit atpc show ref-level
Table 112: Remote Radio ATPC CLI Parameters
Parameter
Input Type
Permitted Values
Description
ref-level
Number
-70 - -30
The RX reference level
for the ATPC mechanism.
The following command sets the ATPC RX reference level of the remote radio to -
55:
radio[2/1]>remote-unit atpc set ref-level -55
16.2
Configuring ATPC and ATPC Override Timer (CLI)
ATPC is a closed-loop mechanism by which each carrier changes the TX power
according to the indication received across the link, in order to achieve a desired
RSL on the other side of the link.
With ATPC, if the radio increases its TX power up to the configured TX power, it
can lead to a period of sustained transmission at maximum power, resulting in
unacceptable interference with other systems.
In order to minimize interference, IP-20 provides an ATPC override mechanism.
When ATPC override is enabled, a timer begins when ATPC raises the TX power to
its maximum. When the timer expires, the radio enters ATPC override state. In
ATPC override state, the radio transmits no higher than the pre-determined ATPC
override TX level, and an ATPC override alarm is raised. The radio remains in ATPC
override state until the ATPC override state is manually cancelled by the user (or
until the unit is reset). The radio then returns to normal ATPC operation.
In a configuration with unit protection, the ATPC override state is propagated to
the standby unit in the event of switchover.
Notes:
When canceling an ATPC override state, you should ensure that the
underlying problem has been corrected. Otherwise, ATPC may be
overridden again.
