Integrated Global Navigation Satellite System (Gnss) On Acx500 Series; Routers - Juniper ACX1000 Configuration Manual

Integrated Global Navigation Satellite System (GNSS) on ACX500 Series Routers
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Copyright © 2017, Juniper Networks, Inc.
source on page 1721
Global Navigation Satellite System (GNSS) is a navigation aid system that uses signals
from satellites to calculate the actual position of a GPS-capable receiver. These signals
are not only used for determining the position of the receiver on Earth but also as a very
accurate time base.
The ACX500 series router has the GNSS receiver integrated into the system. This
eliminates the need to have an external GPS receiver. However, you will need a GPS
antenna. The ACX500 series routers support GNSS input through SubMiniature version
A (SMA) connector. You can configure the GNSS port and its associated parameters at
the [ edit chassis synchronization
You can configure the GNSS port by including the
the [
edit chassis synchronization port gnss
constellation option, then the gps constellation option is considered by default.
The following is the [
edit chassis synchronization port gnss
[edit chassis synchronization]
port gnss client {
cable-length-compensation {
time delay-in-nanoseconds;
}
constellation [gps];
anti-jamming;
}
NOTE:
The range for
nanoseconds.
The integrated GNSS receiver in the ACX500 series routers do not support
10-MHz frequency input and output.
ACX500 series routers support grandmaster clock functionality with the integrated GNSS
receiver.
Use the
show chassis synchronization gnss
receiver. For more information, see
show chassis synchronization on page 2386
source on page 1721
Chapter 9: Configuring Timing and Synchronization
] hierarchy level.
constellation gps]
] hierarchy level. If you do not specify a
cable-length-compensation
command to check the status of the GNSS
show chassis synchronization.
CLI statement at
] hierarchy level:
is from 0 to 50000000
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