GNS183

IMS-RSC: Switch Module for Seamless Switchover of Backplane Signals

The IMS-GNS is a 72-channel satellite clock module with GNSS technology that has been developed from the ground up specifically for time and frequency synchronisation purposes. The IMS-GNS provides a high-precision, high-accuracy time and frequency reference for your Meinberg IMS system and is designed to receive signals from the U.S. Global Positioning System (GPS), the European Galileo system, the Chinese BeiDou system, and the Russian GLONASS system, providing an impressive range of sources for your Meinberg system to be used anywhere in the world.

How the Meinberg IMS-GNS works

The integrated GNSS receiver requires an external Multi-GNSS L1 antenna to receive signals from GPS, Galileo, BeiDou, and GLONASS satellites.

Once the IMS-GNS is successfully initialised and synchronised, it distributes a 1PPS (pulse-per-second) reference clock signal and a 10 MHz reference frequency. These are then used by the IMS output modules to generate a wide variety of specific output signals used in a diverse range of applications. The precision and accuracy of the two aforementioned reference signals are critical in determining the corresponding precision and accuracy of the output signals.

The module also supports the IMS platform's MRS functionality (Multi Reference Source) to utilise all available reference sources for synchronisation beyond the GNSS signals.

The IMS-GNS module is hot-swappable and is automatically detected and utilised when installed, even while the system is still in operations

Use of Two IMS Receiver Modules

In systems equipped with two redundant IMS receiver modules, an RSC switchover module is used to switch between the two reference sources. The RSC serves to switch over the pulse and frequency outputs and serial interfaces of the connected reference clocks.