10 Configuration and Status Monitoring
10 Configuration and Status Monitoring
This chapter explains how to set up and monitor the IMS-GPS182 via the Web Interface.
10.1 Required Configuration
This chapter describes the most important configuration processes for quickly setting up the IMS-GPS182 ref-
erence clock.
Step 1
The signal propagation time for the satellite signal is influenced by the length of the cable and can cause
a delay in signal reception of approx. 5 ns/m cable length (RG 58U antenna cable) or 4 ns/m cable length
(H155 antenna cable).
To enable the connected reference clock to compensate for the cable-induced propagation delay of the sig-
nal, you must either specify the length of the antenna cable in meters (antenna –> Meinberg system) or enter
the offset time in nanoseconds under the configuration settings for your reference clock.
Illustration: Specifying the cable length or time offset (ns) to compensate for signal propagation delay.
To do this, log into the Web Interface of your LANTIME system and proceed as follows:
1.
Open the menu
"Clock"
→
"State & Configuration"
.
2.
Select the corresponding clock module.
3.
Click on the "Miscellaneous" tab.
4.
Select the compensation method and enter the appropriate value.
Note:
The default value is 20 m. The maximum value of 500 m must not be exceeded.
IMS-GPS182
Date: June 16, 2022
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