User's Manual

Chapter 3 - Operation and Administration Using the CLI NPU Configuration
4Motion 386 System Manual
Syntax
Description
Parameter Description Presence Default
Value
Possible
Values
External1PPS
{Enable |
Disable}
Indicates whether the
external 1PPS clock is
enabled or disabled.
If the External 1PPs clock is
enabled, synchronization of
air frames for inter-site and
intra-site sectors should be
managed by the external
1PPS GPS clock. If the
External 1PPS clock is
disabled, it indicates that the
internal 1PPS at the NPU is
used to synchronize air
frames for inter-site and
intra-site sectors.
When using a GPS, External
1PPS clock must be enabled
for proper operation of the
system.
Optional Enable
 Enable
 Disable
External16MHz
{Enable |
Disable}
Indicates whether the
External 16Mhz clock is
enabled or disabled.
If the external 16 MHz is
enabled, the NPU should
receive 16Mhz signal from
the master NPU. This
parameter should be enabled
only if the NPU clock mode is
slave. If the NPU clock mode
is master, the MPU drives the
16Mhz signal towards the
slave NPUs.
In the current release
External 16MHz clock must
be disabled.
Optional Disable
 Enable
 Disable
Command
Modes
Global configuration mode