9 System Installation
9.1 Important Information Regarding Hot-Pluggable IMS Modules
The following information should be strictly observed when replacing IMS modules during operation. Not all
IMS modules are fully hot-pluggable. For example, it is naturally not possible to replace a power supply unit in
a system without PSU redundancy without first having installed a second power supply unit while the system
is in operation.
The following rules apply for the individual IMS slots:
PWR Slot:
"Hot-Swappable"
If you operate your system with only one power supply unit, a
second power supply unit must be installed before removing
or replacing it in order to keep your system on.
I/O, ESI and
MRI Slots:
"Hot-Pluggable".
CLK1/CLK2
"Hot-Pluggable"
When a clock module is replaced or installed, it is important to
Slots:
rescan the reference clocks ("Rescan Refclocks") in the
"System" menu of the Web Interface.
RSC/SPT Slots:
"Hot-Pluggable"
It will not be possible for your IMS system to switch between
signal generators while the RSC/SPT is not installed.
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CPU Slot:
"Not Hot-Pluggable"
Before the CPU is removed, the IMS system must be powered
down.
Please note that after powering on and rebooting the LANTIME
Operating System, the configuration of some IMS modules may
be reset to factory defaults!
Note:
The NTP service and access to the web interface will be unavailable while the CPU
is not installed. Management and monitoring functions will also be disabled.
20
Date: June 16, 2022
IMS-GPS182
